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eclipse982nrRST	Jul-09-05 05:45 AM
Member since Mar 16th 2004 6314 posts,

#110879, "Detonation sounds"
Jul-17-05 05:02 PM by ner947

ner947: This is a pretty informative thread so I am moving it to the "Things..." folder. Jeff, (or any other admins that see this) can you preserve Jason's MP3 by hosting it on the main site? Thanks.

Originally posted by eclipse982nrRST
Searched and found out that in our cars, detonation usually sounds like loose ball bearings rolling around on a piece of sheetmetal. Question is, how the hell can you here this over the deltagate wasteagate? when my wastegate opens, i cant here shit in the engine bay, lol. Also, whats everyones fuel pressures @ 10psi? My FP just doesnt seem to be high enough, at 10psi, im getting like 45psi of fuel while boosting.

-MIKE-

Stroked 2.2L

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Replies to this topic

RE: Detonation sounds, tim96rs, Jul-09-05 08:21 AM, #1

RE: Detonation sounds, eclipse982nrRST, Jul-09-05 08:58 AM, #2

RE: Detonation sounds, tim96rs, Jul-09-05 10:35 AM, #3

RE: Detonation sounds, eclipse982nrRST, Jul-09-05 10:52 AM, #4

RE: Detonation sounds, pr0, Jul-09-05 11:28 AM, #5

RE: Detonation sounds, eclipse982nrRST, Jul-09-05 11:32 AM, #6

RE: Detonation sounds, tim96rs, Jul-09-05 02:37 PM, #7

RE: Detonation sounds, Team

Team

XtremeRS, Jul-09-05 03:47 PM, #8

RE: Detonation sounds, eclipse982nrRST, Jul-09-05 05:02 PM, #9

RE: Detonation sounds, pr0, Jul-09-05 07:17 PM, #10

Fuel pressure., eclipse982nrRST, Jul-10-05 11:53 AM, #11

RE: Fuel pressure., pr0, Jul-10-05 12:29 PM, #12

RE: Fuel pressure., WickedESi, Jul-10-05 02:03 PM, #13

RE: Fuel pressure., eclipse982nrRST, Jul-10-05 02:39 PM, #14

RE: Fuel pressure., Pitchblack98, Jul-11-05 05:52 AM, #15

RE: Fuel pressure., Team

Team

XtremeRS, Jul-11-05 04:33 PM, #16

RE: Fuel pressure., WickedESi, Jul-11-05 08:46 PM, #17

RE: Fuel pressure., eclipse982nrRST, Jul-12-05 01:57 AM, #18

RE: Fuel pressure., eclipse982nrRST, Jul-12-05 02:28 PM, #19

RE: Fuel pressure., eclipse982nrRST, Jul-12-05 02:54 PM, #20

RE: Fuel pressure., djtrickee, Jul-12-05 04:26 PM, #21

RE: Fuel pressure., Team

Team

XtremeRS, Jul-12-05 04:37 PM, #22

RE: Fuel pressure., djtrickee, Jul-12-05 05:30 PM, #23

RE: Fuel pressure., WickedESi, Jul-13-05 03:03 AM, #24

RE: Fuel pressure., eclipse982nrRST, Jul-13-05 03:49 AM, #25

RE: Fuel pressure., CrazyEclipse, Jul-14-05 05:22 AM, #26

RE: Fuel pressure., Moderator

Moderator

Corbin, Jul-14-05 07:17 AM, #27

RE: Fuel pressure., djtrickee, Jul-14-05 08:20 AM, #28

RE: Fuel pressure., eclipse982nrRST, Jul-14-05 03:53 PM, #29

RE: Fuel pressure., djtrickee, Jul-14-05 06:31 PM, #30

RE: Fuel pressure., eclipse982nrRST, Jul-15-05 02:11 AM, #31

RE: Fuel pressure., csmakio, Jul-14-05 10:28 PM, #32

RE: Fuel pressure., extreme97nt, Jul-15-05 06:13 PM, #33

tim96rs	Jul-09-05 08:21 AM
Member since Jan 05th 2003 131 posts,

#110880, "RE: Detonation sounds"
In response to Reply # 0

Need more info:+

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eclipse982nrRST	Jul-09-05 08:58 AM
Member since Mar 16th 2004 6314 posts,

#110881, "RE: Detonation sounds"
In response to Reply # 1

Originally posted by tim96rs
Need more info:+

what do u need more info about? i wanted know how you can tell if your getting detonation if you cant hear anything over your chattering clutch and your loud ass wastegate, lol.

also, wanna know what your fuel pressures are @ 10psi.

-MIKE-

Stroked 2.2L

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tim96rs	Jul-09-05 10:35 AM
Member since Jan 05th 2003 131 posts,

#110882, "RE: Detonation sounds"
In response to Reply # 2

When it happens you sould hear it. When I had detonation I could hear it loud and clear. What size injectors R U running.I'm running 450cc at around 50psi at 9-10lbs. of boost.

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eclipse982nrRST	Jul-09-05 10:52 AM
Member since Mar 16th 2004 6314 posts,

#110883, "RE: Detonation sounds"
In response to Reply # 3

Originally posted by tim96rs
When it happens you sould hear it. When I had detonation I could hear it loud and clear. What size injectors R U running.I'm running 450cc at around 50psi at 9-10lbs. of boost.

injectors = 440cc
boost = 10psi @ 42psi of fuel (seems low, is that about right?)

What I am saying though is, I cant hear anything cuz my wastegate is too loud, along with my exhaust and a chattering clutch, lol.

-MIKE-

Stroked 2.2L

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pr0	Jul-09-05 11:28 AM
Member since Aug 26th 2004 288 posts,

#110884, "RE: Detonation sounds"
In response to Reply # 4
Jul-09-05 11:30 AM by pr0

Put some rocks in an empty pop can and shake it. That would be the sound of detonation.

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eclipse982nrRST	Jul-09-05 11:32 AM
Member since Mar 16th 2004 6314 posts,

#110885, "RE: Detonation sounds"
In response to Reply # 5

Originally posted by pr0
Put some rocks in an empty pop can and shake it. That would be the sound of detonation.

thats what i figured. i dont hear any of that. just wanted to make sure cuz that turbonetics deltagate makes a super odd noise when it opsn up.

-MIKE-

Stroked 2.2L

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tim96rs	Jul-09-05 02:37 PM
Member since Jan 05th 2003 131 posts,

#110886, "RE: Detonation sounds"
In response to Reply # 6

That does seem low. What do you idle at. What are your stft ltft on the datalogger.

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XtremeRS	Jul-09-05 03:47 PM
Member since May 20th 2003 6329 posts,

#110887, "RE: Detonation sounds"
In response to Reply # 7

With windows rolled up, radio off, I can hear it pretty easily, IF you know what sound you are listening for. I describe it more of a rapid metalic spitting sound more than rocks in a can, but that's just me. It seems to be heard coming from the center to passenger side area of the dashboard when it happens.. I had a sound file of it when jason's car was on the dyno at the shootout a few years ago..maybe i can find it and someone can host it..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

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eclipse982nrRST	Jul-09-05 05:02 PM
Member since Mar 16th 2004 6314 posts,

#110888, "RE: Detonation sounds"
In response to Reply # 8

Originally posted by XtremeRS
With windows rolled up, radio off, I can hear it pretty easily, IF you know what sound you are listening for. I describe it more of a rapid metalic spitting sound more than rocks in a can, but that's just me. It seems to be heard coming from the center to passenger side area of the dashboard when it happens.. I had a sound file of it when jason's car was on the dyno at the shootout a few years ago..maybe i can find it and someone can host it..

that would be perfect.
i hope its my wastegate that makes the funky noise, lol.

my idle pressure is @ 18psi tim96.

-MIKE-

Stroked 2.2L

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pr0	Jul-09-05 07:17 PM
Member since Aug 26th 2004 288 posts,

#110889, "RE: Detonation sounds"
In response to Reply # 9
Jul-09-05 07:17 PM by pr0

It probably is, you will know detonation when you hear it. Trust me haha, its not a pretty sound. Wastegates make funny noises.

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eclipse982nrRST	Jul-10-05 11:53 AM
Member since Mar 16th 2004 6314 posts,

#110890, "Fuel pressure."
In response to Reply # 10

no one ever answered my question though about how much FP your seeing at 10psi....?

-MIKE-

Stroked 2.2L

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pr0	Jul-10-05 12:29 PM
Member since Aug 26th 2004 288 posts,

#110891, "RE: Fuel pressure."
In response to Reply # 11
Jul-10-05 12:29 PM by pr0

I would like to answer that but im only running 5 PSI therefore I don't know hahah.

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WickedESi	Jul-10-05 02:03 PM
Donating 2GNT member 3090 posts,

#110892, "RE: Fuel pressure."
In response to Reply # 11

Originally posted by eclipse982nrRST
no one ever answered my question though about how much FP your seeing at 10psi....?

14 psi static & idle, 43 psi @ 10 psi on 450cc injectors which puts me a little under 12:1 fuel ratio when I dyno'd.

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

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eclipse982nrRST	Jul-10-05 02:39 PM
Member since Mar 16th 2004 6314 posts,

#110893, "RE: Fuel pressure."
In response to Reply # 13

Originally posted by WickedESi

Originally posted by eclipse982nrRST no one ever answered my question though about how much FP your seeing at 10psi....?

14 psi static & idle, 43 psi @ 10 psi on 450cc injectors which puts me a little under 12:1 fuel ratio when I dyno'd.

hmm okay. im about 40-42psi on 10psi with 440 injectors. i thought that was a little low, but i guess im okay. my idle is 16psi and my static is about 28-30psi. im gonna turn up the boost this week to about 15psi. i hope my disc/ring combo wont max out.

also, i was searching through here about the SFMU and i read something that NER posted awhile ago, and he said he was having problems with 'hesitation' but he didnt wanna say it was hesitation, lol. he said he would see on the boost gauge that he was boosting, but it didnt start to get up and go until about 6-10psi. so he said he drilled out both sides of the restrictor to double what they were and now the car starts going good when the gauge starts reading boost.

anyone else done this? cuz my car kinda seems to do the same thing. i wont start moving good until about 6psi. i guess i will try it later tomorrow, but i wanted to know if anyone else has tried it.

-MIKE-

Stroked 2.2L

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Pitchblack98	Jul-11-05 05:52 AM
Member since Jan 11th 2003 1691 posts,

#110894, "RE: Fuel pressure."
In response to Reply # 14

every car is a little different. So someone elses settings might not be exactly perfect for your set up, even if they are close to the same. You need to get the car on a dyno and tune it that way. Thats the best and safest way. You can keep turning up the boost a little at a time and hope you have it right, but its not hard to blow a badly tuned motor...

_______________________________________
The end of the internet begins here... www.broke-off.com

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XtremeRS	Jul-11-05 04:33 PM
Member since May 20th 2003 6329 posts,

#110895, "RE: Fuel pressure."
In response to Reply # 15
Jul-11-05 04:40 PM by XtremeRS

I found the mp3 file of the detonation sounds..its 429kb's, so is there anyone who can host it?

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

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WickedESi	Jul-11-05 08:46 PM
Donating 2GNT member 3090 posts,

#110896, "RE: Fuel pressure."
In response to Reply # 16

I can, email it to baldrjo@auburn.edu

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

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eclipse982nrRST	Jul-12-05 01:57 AM
Member since Mar 16th 2004 6314 posts,

#110897, "RE: Fuel pressure."
In response to Reply # 17

what about the restricotr mod for the SFMU, anyone tried that besides NER? Thanks for finding that clip XTREMERS, I wanna hear it for sure!

-MIKE-

Stroked 2.2L

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eclipse982nrRST	Jul-12-05 02:28 PM
Member since Mar 16th 2004 6314 posts,

#110898, "RE: Fuel pressure."
In response to Reply # 18

bump for the sound clip

-MIKE-

Stroked 2.2L

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eclipse982nrRST	Jul-12-05 02:54 PM
Member since Mar 16th 2004 6314 posts,

#110899, "RE: Fuel pressure."
In response to Reply # 19

Okay, ive searched and read like 15 forums on fuel pressure under boost. I see some people said @ 10psi, their at or over 100psi of FP and others are at 38-48psi of FP and other at 80-85psi of FP. Which one is freakin right? lol. I am running 42lb injectors (440cc) with an idle pressure of 16psi and the other day i was seeing 42psi @ WOT at 10psi of boost, but now suddenly today, it was cooler outside, and some reason, im getting about 58-62psi of FP at 10psi. Am I going good or whats up here. 10 diff posts i read, all said somethign different. lol.

also, another bump for the soound clip of detonation!

-MIKE-

Stroked 2.2L

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djtrickee	Jul-12-05 04:26 PM
Donating 2GNT member 5924 posts,

#110900, "RE: Fuel pressure."
In response to Reply # 20
Jul-12-05 04:28 PM by djtrickee

Originally posted by eclipse982nrRST
Okay, ive searched and read like 15 forums on fuel pressure under boost.

Ummm. Just figure it out for yourself??? emoji

It's not that hard...

http://www.2gnt.com/www/corbin/choosefpr.html

http://www.vortechsuperchargers.com/pdf/manuals/superfmuim.pdf

EDIT: Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

P.S. XtremeRS- I can host that file for ya if you need me too.

.........................................................................................................................

Built. That's All...
.........................................................................................................................
www.monkeybuttpirate.com
.........................................................................................................................
2 Fingers of Scotch with a milk back... Stat!

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XtremeRS	Jul-12-05 04:37 PM
Member since May 20th 2003 6329 posts,

#110901, "RE: Fuel pressure."
In response to Reply # 21

Ok I sent the file to joel, so if that doesnt work out, i'll send it to you DJ..

When this gets up on here, in the sound file, right at the 18-19 second mark, you will hear the detonation. This was JasonESI-T's car on the dyno at the Shootout a few years ago...

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

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djtrickee	Jul-12-05 05:30 PM
Donating 2GNT member 5924 posts,

#110902, "RE: Fuel pressure."
In response to Reply # 22

Originally posted by XtremeRS
Ok I sent the file to joel, so if that doesnt work out, i'll send it to you DJ.. When this gets up on here, in the sound file, right at the 18-19 second mark, you will hear the detonation. This was JasonESI-T's car on the dyno at the Shootout a few years ago...

.........................................................................................................................

Built. That's All...
.........................................................................................................................
www.monkeybuttpirate.com
.........................................................................................................................
2 Fingers of Scotch with a milk back... Stat!

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WickedESi	Jul-13-05 03:03 AM
Donating 2GNT member 3090 posts,

#110903, "RE: Fuel pressure."
In response to Reply # 22

Originally posted by XtremeRS
Ok I sent the file to joel, so if that doesnt work out, i'll send it to you DJ.. When this gets up on here, in the sound file, right at the 18-19 second mark, you will hear the detonation. This was JasonESI-T's car on the dyno at the Shootout a few years ago...

Here is the detonation sound clip courtesy of XtremeRS:
http://www.auburn.edu/~baldrjo/files/misc/Jasondet.mp3

Joel Baldridge, ASE Certified Master Technician, Audi Certified Expert Technician

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eclipse982nrRST	Jul-13-05 03:49 AM
Member since Mar 16th 2004 6314 posts,

#110904, "RE: Fuel pressure."
In response to Reply # 24

kinds just sounds like static. thanks xtremeRS.

-MIKE-

Stroked 2.2L

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CrazyEclipse	Jul-14-05 05:22 AM
Member since Jul 30th 2002 2503 posts,

#110905, "RE: Fuel pressure."
In response to Reply # 25

Originally posted by eclipse982nrRST
kinds just sounds like static. thanks xtremeRS.

It does in the begining, towards the end it sounds like it hurts. I think that would be very noticable.

1998 GS-Turbo KANDY -- For Sale
1999 GS-Non Turbo 10th anniversary Edition

I have been in bed with Dino.....ask me for a picture!

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Corbin	Jul-14-05 07:17 AM
Donating 2GNT member 2552 posts,

#110906, "RE: Fuel pressure."
In response to Reply # 21

Originally posted by djtrickee
Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

Far be it from me to actually agree with DJ, but shit, it sounds like that might be the best option. Either that or you need to hit the books this weekend. Making a turbo conversion car run well at all operating points take some real effort and knowledge.

Corbin

'95 ESI-T
Now with more power and fewer leaks

Gimme fuel...Gimme fire...Gimme that which I desire

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djtrickee	Jul-14-05 08:20 AM
Donating 2GNT member 5924 posts,

#110907, "RE: Fuel pressure."
In response to Reply # 27

Originally posted by Corbin

Originally posted by djtrickee Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

Far be it from me to actually agree with DJ, but shit, it sounds like that might be the best option. Either that or you need to hit the books this weekend. Making a turbo conversion car run well at all operating points take some real effort and knowledge. Corbin '95 ESI-T Now with more power and fewer leaks

Gimme fuel...Gimme fire...Gimme that which I desire

I actually wasn't trying to be rude in that post, but honest.

.........................................................................................................................

Built. That's All...
.........................................................................................................................
www.monkeybuttpirate.com
.........................................................................................................................
2 Fingers of Scotch with a milk back... Stat!

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eclipse982nrRST	Jul-14-05 03:53 PM
Member since Mar 16th 2004 6314 posts,

#110908, "RE: Fuel pressure."
In response to Reply # 27

Originally posted by Corbin

Originally posted by djtrickee Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

Far be it from me to actually agree with DJ, but shit, it sounds like that might be the best option. Either that or you need to hit the books this weekend. Making a turbo conversion car run well at all operating points take some real effort and knowledge. Corbin '95 ESI-T Now with more power and fewer leaks

Gimme fuel...Gimme fire...Gimme that which I desire

Blah, lol. I was asking about fuel pressures because if you search (liek i did and read about 30 posts) in almost every post, it said something different. Some said, with the fuel setup I have, i should be seeing 80psi, 100+psi etc etc. I was asking to try to get a specific answer. I know the basics around things, but i was trying to get a straight answer instead of 10 different ones....

PLUS, I do need to get to the dyno and get my own wideband emoji

-MIKE-

Stroked 2.2L

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djtrickee	Jul-14-05 06:31 PM
Donating 2GNT member 5924 posts,

#110909, "RE: Fuel pressure."
In response to Reply # 29
Jul-14-05 06:46 PM by djtrickee

Originally posted by eclipse982nrRST
Blah, lol. I was asking about fuel pressures because if you search (liek i did and read about 30 posts) in almost every post, it said something different. Some said, with the fuel setup I have, i should be seeing 80psi, 100+psi etc etc. I was asking to try to get a specific answer. I know the basics around things, but i was trying to get a straight answer instead of 10 different ones.... PLUS, I do need to get to the dyno and get my own wideband emoji

lol. Are you telling Corbin to search? thats pretty funny. He basically wrote the book on fuel systems for our cars, or at least one of the books. An innovator for sure.

Anyway, I don't think you actually read any of the responses that people continue to type in to your questions. I gave you info and links to help tune your car, but I have a feeling you didn't read them or use them.
You're making my blood pressure go up again. oh man.

.........................................................................................................................

Built. That's All...
.........................................................................................................................
www.monkeybuttpirate.com
.........................................................................................................................
2 Fingers of Scotch with a milk back... Stat!

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eclipse982nrRST	Jul-15-05 02:11 AM
Member since Mar 16th 2004 6314 posts,

#110910, "RE: Fuel pressure."
In response to Reply # 30

Originally posted by djtrickee

Originally posted by eclipse982nrRST Blah, lol. I was asking about fuel pressures because if you search (liek i did and read about 30 posts) in almost every post, it said something different. Some said, with the fuel setup I have, i should be seeing 80psi, 100+psi etc etc. I was asking to try to get a specific answer. I know the basics around things, but i was trying to get a straight answer instead of 10 different ones.... PLUS, I do need to get to the dyno and get my own wideband emoji

lol. Are you telling Corbin to search? thats pretty funny. He basically wrote the book on fuel systems for our cars, or at least one of the books. An innovator for sure. Anyway, I don't think you actually read any of the responses that people continue to type in to your questions. I gave you info and links to help tune your car, but I have a feeling you didn't read them or use them. You're making my blood pressure go up again. oh man.

NO NO NOOOO! LOL. I was NOT telling Corbin to search. I was saying that when i searched, i found 10 diff answers to the same question and i was trying to find the actual answer. Come to find out, after looking and printing out the diagram you gave me djtrickee, i found out my fuel pressure should be 60psi while boosting @ 10psi emoji

I thank you chris, VERY much. emoji

-MIKE-

Stroked 2.2L

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csmakio	Jul-14-05 10:28 PM
Member since Jun 18th 2003 412 posts,

#110911, "RE: Fuel pressure."
In response to Reply # 27

Originally posted by Corbin

Originally posted by djtrickee Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

Far be it from me to actually agree with DJ, but shit, it sounds like that might be the best option. Either that or you need to hit the books this weekend. Making a turbo conversion car run well at all operating points take some real effort and knowledge. Corbin '95 ESI-T Now with more power and fewer leaks

Gimme fuel...Gimme fire...Gimme that which I desire

Hate to post hijack but how much would a shop charge for something like that. I eventually wana get my car dynoed but I was thinking of having this shop tune it for me to. I have a really good place not far from me.

HAHN Stage 1 \ Greddy Power Extreme 2.5'' Catback

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extreme97nt	Jul-15-05 06:13 PM
Donating 2GNT member 1649 posts,

#110912, "RE: Fuel pressure."
In response to Reply # 32

Originally posted by csmakio

Originally posted by Corbin

Originally posted by djtrickee Holy hell. What am I thinking... You will never be able to understand this. Your best bet is to take it to a shop that has a Dyno and a Wideband O2 and hand them your credit card and say "Make my car run good."

Far be it from me to actually agree with DJ, but shit, it sounds like that might be the best option. Either that or you need to hit the books this weekend. Making a turbo conversion car run well at all operating points take some real effort and knowledge. Corbin '95 ESI-T Now with more power and fewer leaks

Gimme fuel...Gimme fire...Gimme that which I desire

Hate to post hijack but how much would a shop charge for something like that. I eventually wana get my car dynoed but I was thinking of having this shop tune it for me to. I have a really good place not far from me.

Call and ask them. I am sure they will tell you!

best time so far 14.3 @ 101.1mph(no traction)
www.cnnmotorsports.com

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