the launch could have been better. car was still bogging down some or i was spinning the slicks. she was doing it all night off the line. this is at 21lbs of boost. no real tuning.. everything set the same as my last dyno run which is in my sig.

Reaction: .689 -.500 on this track is perfect
60ft: 2.019
594ft: 8.417
1/8et: 8.943
1/8mph: 85.53

what do you guys think? next time i go back i will be pushing 27lbs on race gas and have it tuned hopefully.. i should be over 400whp at that point.

whats the mathematical calculation for 1/4 times? i know its not exact for our cars, but it might give me a rough estimate.

I'd say between a 13.5-13.7 in the quarter but this is just rough guess. I'm sure someone else could give you a much more accurate answer.

98' Dodge Avenger
HRC Stage 3

low 13s or high 12s with that 60'.

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

Your 60ft time needs work. 2.0 times can be done with a good set of drag radials. Don't get me wrong it's a decent 60ft but with slicks you should be seeing 1.8s or better. Your 1/8th mile time needs work as well but that will most likely come with tuning and more boost. I don't know of any actual calculations but that 1/8th mile time is more consistant with a mid to high 13 second pass. You'll need to be in the mid to low 8s before you'll see 12s.

Ok good. thank you. Lets move away from you now and give someone else the microphone.

1995 Eagle Talon ESi

yeah. i witnessed that several times tonight. haha

Just run a damn 1/4 mile and then you'll know what you can do.

Trying to estimate the 1/4 from the 1/8 is never going to be accurate.

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Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

high 12's with that 60'

edit - and i don't believe this belongs in Turbo/Nitrous.

!@#$
---------------------------------------

"Oh yea, well...My manifold does cool twisty things"

www.EnhancedMotorSports.com

Multiply your 1/8 mile time by 1.55 and that should give you a rough estimate. It is the not perfect, there are still other factors that could make you run better or worse. That is just an estimate. So you would be around 13.7 in a 1/4.

99 RS-T
"New bottom end(8.6:1 w/long rods)"
Turbonetics 60-1/Portfueler/etc!!!!!

with a better launch, that time could drop by .6 or .7 seconds in a turbocharged car. you could probably get into the 12s, I bet, with your current setup, depending on what turbo exactly you are using. eight mile is too short for turbod cars to really get moving.

1995 Eagle Talon ESi

Wow, 21 psi and slicks. I had a better 1/8 th on 11 psi and drag radials, and yet my 60ft is slower. My car is untuned as well and I'm running a 20g.
Rt.... .653
60'... 2.161
1/8... 8.797
mph... 85.78
1/4... 13.411
mph... 106.74

(BUILT SHORTBLOCK, HRC S20G-H W/ FMIC, CRANE 16S, 450 dsm injectors, Chillfactory regulator, 3" EXHAUST, SPEC CLUTCH)

yup yup

not a bad time seems like you need practice w/ your launch though. .6+ on slicks not to good. but im sure with practice and tuning you will have a lot better times. I average around .400 on my launches w/ street tires.

_____________________________________
Scott
90' GSX, 06' Effo SSL

(parting out 95 GS)

Yeah, I've got alot of new parts too. My car is untuned with half the boost and still running faster. That was also my first time at the track with my new setup. For someone that has dyno time I would think your car would be faster than that. I've never even seen a dyno or a laptop to tune my antique dfi setup.

(BUILT SHORTBLOCK, HRC S20G-H W/ FMIC, CRANE 16S, 450 dsm injectors, Chillfactory regulator, 3" EXHAUST, SPEC CLUTCH)

great, your car is faster. good job.

there is still 3 track time left this season for me. still more practice to be had.

sorry. i should have said.. "I assume its bad for your motor".

There is something about instant blast of switch boost settings that I don't like. Ive done it in the past...

I dont have problems with tire spin. I actually have problems with bogging down. The last run of the night was where i got into the 8s. I finally figured out the best method for getting the turbo to spool on the line.

I may be outta the loop, but how come you dont run the 1/4?

_____________________________________
Scott
90' GSX, 06' Effo SSL

(parting out 95 GS)

It's not bad for your motor, unless your fuel system does not adjust fast enough or something. There are no ill effects of running low boost in first and then high boost in a diff gear (or any other 2 stage setup really). The only way this would be an issue is if your turbo went from like 10psi to 20 psi in a second (this won't happen as the turbo will need time to build the boost).

I edited to the wiki!

______________________________
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/

You don't put the same strain on the car when launching compared to hitting a switch when you are already running.

Doesn't matter anyway because the car can be launched at high boost.

I edited to the wiki!

Imagine being on the highway, cruising at part throttle. Now, mash the gas.

You are going from some pressure value below ambient in the intake manifold to 27 PSI. Even worse on the motor than 0 psi to 27 psi.

Just dual stage your boost already. It will make the car FAR easier to launch. Quit being a sally.

so i guess a progressive nitrous controller is bad for a fwd car

no need for being an ass, widebody

sure i have hit the high boost switch while on the track. i just don't like doing it simply because of how much money is involved.

Going from Low to Hi boost is NOT!!! going to cause any damage... unless your setup has problems with the high boost anyway.

Quit being afraid, launch on low boost and hit hi boost once you have good traction...

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Megasquirt powered 420A
Custom turbo system

http://www.ms-custom.com

Widebaodies is just pissed off because he couldnt make his 2.4 run and his car is being pieced out due to his lack of attention span..............lol just kidding

James you spent all that money so that motor could handle high boost, thats the whole point of doing it. I will tell you now your car will break...its inevitable but its not because of a boost controller being used in the manner you dont want to do. Relax and push it for what its worth.

Terry
96 Eagle Talon ESI....Daily driver

97 Eclipse.........