ok, so i turned my fuel pressure up today to around 18 psi at idle from about 13-14 maybe lower? (440s, SFMU largest disc), and made no other changes to my car, and it drives soooooo much better. all of this at about 15 lbs of boost. i really cant explain why it makes such a difference in the drivability...

of course its pretty damn rich up top, but i get no audible detonation anymore, my egts stay super low, everything just feels better. im sure its not making quite as much power from all the extra gas, but im not as worried about blowing something up like i usually am when im bashing on my car on the expessway haha.

anyone else have similar experiences?

______________________________
Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

off topic, but i was just wondering how many lbs of boost were you runnin when you got that 13.8, just kinda curious what it takes to get into the 13s

I contributed to the Wiki!
EVO IX - just a really expensive boost gauge and a K&N air filter
96 Eclipse RS -awaiting registration and inspection
95 Eclipse GS - parts car
Mods/Profile - http://www.2gnt.com/index.php?d=cs82685

15.

______________________________
Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

I run rich everywhere Matt. At least according to my wideband. 11:1 or richer once I hit the powerband. Driveability is good and still makes plenty of power.

-"Easy Mac"
05 Mazda RX-8 (RR8 #88)
99 Eclipse RS 398whp & 372lb-ft

My car also likes to run on the rich side, even at idle. With the rich A/F ratio it runs smoother and idles better.

Joe
MFG Racing

95 GS
MSnS
FP3052 coming soon.


http://www.dsmregistry.com/detail.php?carid=1107

http://www.cardomain.com/id/95turbogs

my car runs so rich to a point where it'll cause backfire when I stomp on it sometimes.

intricatelines.com/ -graphics and vinyls

"Tell them of us and say,
For their tomorrow,
We gave our today."
-- The Kohima Epitaph

Is your car auto soulcontroller?

yes it is.

______________________________
Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

Well, maybe if we had some good detonation control built into the head (quench pads, etc), we would be able to run a bit leaner without knocking. I think that a good piston design could have the same effect, too.

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

I just want to throw this into the table here. I'm not good if not have a bit of knowledge on quench pads, detonation control and anything related, my question is does the JE piston (8.5:1) from the catalog good enough to control detonation?

When is the money spending going to stop on this fucking car?!

Do you have any mods to the transmission? Because my car is still very slow off the line, top end is good though.

yea.. i'd like to know as well... I'm a 15 lbs with an auto and the auto is killing my off the line acceleration.

MODS:

HRC 16g turbo kit, Spearco custom FMIC, Custom IC piping, VT rebuilt engine: Custom 8.8:1 compression CP pistons, Eagle connecting rods, Melling oil pump, Clevite bearings, 370cc injectors, Vortech S-FMU, Apexi N-1 catback exhaust, AFX UDP, Autometer boost gauge, fuel pressure gauge, EGT gauge, Corbin's digital A/F gauge, Tokico Blue shocks, Tein springs (1.5" drop), 18" Konig Verdicts rims, VIS stock-style Carbon fiber hood

i completely agree, running rich makes my car feel a hell of a lot better

i think the higher idle pressure affects the spray pattern of the injectors a little, and thats why it feels so much smoother.

what are you tuning with?

_ _ _ _ _ _ _ _ _

96 Black ESi
91 Red TSI AWD (RIP)
02 WRX


"turnin wrenches for nine hours in the pouring rain, just to get the beast up and running again"

Aerospace Certified TIG welder for Precision Castparts in Portland, OR.

JoshSpair.com

1995 Eagle Talon ESi

yea ive got all the trans mods and a 2800 stall converter, but no LSD. i can still only manage to cut 2.4 60's. decent i suppose.

im going to bash on it at the track one more time and see what times i can come up with before i swap it out.

______________________________
Matt D.
'06 Evo IX SE
'98 RS-T 13.8 @ 106.1

your going to swap to a manual tranny? I may be interested in your parts if you are swapping. let me know. thanks.

MODS:

HRC 16g turbo kit, Spearco custom FMIC, Custom IC piping, VT rebuilt engine: Custom 8.8:1 compression CP pistons, Eagle connecting rods, Melling oil pump, Clevite bearings, 370cc injectors, Vortech S-FMU, Apexi N-1 catback exhaust, AFX UDP, Autometer boost gauge, fuel pressure gauge, EGT gauge, Corbin's digital A/F gauge, Tokico Blue shocks, Tein springs (1.5" drop), 18" Konig Verdicts rims, VIS stock-style Carbon fiber hood