Can you estimate 1/4 time from 0-60?
 

My car runs 0-60 consistantly from 5.8-6.2 seconds, curious if any of you guys run a simalier time and what you do in the 1/4 mile with that 0-60 time?

Re: Can you estimate 1/4 time from 0-60?
 

Sounds near stockish L98 times. I ran high 13's with simple mods and on street was mid high 5's sec 0-60

Re: Can you estimate 1/4 time from 0-60?
 

well thats depressing cause my mods are completly rebuilt bottom end, tpis big mouth lower intake, ported upper intake and ported slp runners, Crane 2032 cam, ADPR, hooker 2055 headers and Y pipe, full 3" magnaflow exhaust, ed wright piggy back chip, rebuilt trans with some upgrades, 9 bolt 3.45 limited slip, new firestone firehawk indy 500 tires..... now never got it dyno tuned yet cause hard to find someone who wants to do it, i found 1 shop but they want 500-700. timing is set at stock 6* BTDC, and my air/fuel wide band reads about 12.2 or so at WOT. was thinking about playing with the timing and fuel pressure regulator but not sure where to set them at.

wonder what can be wrong, would have to figure with those mods car should run better them stock....

think a dyno tune would make a big difference?

Re: Can you estimate 1/4 time from 0-60?
 

Well thats mostly full bolt ons but mild cam. They run mid lower 13's in good air on good tire with some converter.
No converter hurts 0-60 times and thus et. Dyno tune will pick up some power but its not worth 500-700. Id buy the equip and learn yourself. Its best thing you can do

Re: Can you estimate 1/4 time from 0-60?
 

oh yeah converter is a 2300-2500 stall speed. havent really done a 0-60 reving it up to about that b4 launching...

Re: Can you estimate 1/4 time from 0-60?
 

would i pick up anything from adjusting teh fuel pressure back a little and getting the wide band at WOT in the 13's a/f ratio instead of low 12 a/f ratio? was alos thinking of moving timing to 8*...

Re: Can you estimate 1/4 time from 0-60?
 

If stock tune try 8-10 deg base timing. Fuel pressure dropping may lean it out some but it could hurt spray quality and pattern a tiny bit. Id shoot for 12.8-13.0 but whatever shows max power will be best

Re: Can you estimate 1/4 time from 0-60?
 

and i assume i can achieve getting to 12.8-13.0 by adjusting the pressure back just a little bit?

its at about 47-48 now with vacuum line off regulator

Re: Can you estimate 1/4 time from 0-60?
 

I think its gonna take a big pressure change to bring air fuel back down that much but remember its also goin to change part throttle fuel and could make you too lean at cruise. Its easier to take 5-10% out the pe mode fuel table in the bin to get to high 12's air fuel

Re: Can you estimate 1/4 time from 0-60?
 

that stuff seams so complicated to me.... i looked into something called ebl flash or something that seems liked you can tune it live without taking the computer out and having to burn a chip each time.... any experience with that?

Re: Can you estimate 1/4 time from 0-60?
 

I havent played with that system but its not to complicated. They make tuning stuff that you can tune on the fly but chip burns arent that hard. Your combo sounds like it runs well on the base chip so only small and easy changes need to be made