Quote:
Originally Posted by Drsagacity
The JRE package I referenced earlier saw 725rwhp with the manual transmission, 9psi, and e85. I imagine you will be very close to the same power. In that thread he said he found the fuel limit because at 11psi, the fuel system was not able to keep up with demand.
Are you planning to run road course or drag strip?
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I know basically nothing about the JRE packages - what blower are these using? As PSI isn't necessarily as relevant as over whp (especially if not comparing like-for-like on blowers - ie not comparing PD vs Centri)
However from a whp-standpoint, I agree that I should be pretty similar.
Car will be doing 1-2 events for 1/2 and 1/4 miles but primarily will be used for lapping/track days on road courses - likely will see 4-8 of those per year, maybe some nights in Mexico too.
Quote:
Originally Posted by Drsagacity
Actually, he has a thread on Super Street Brawler with 93octane and he shows that configuration at 700rwhp running 11psi.
So, you can run more boost on 93octane, or you can run less boost on e85 and the power is pretty similar. Let's say it should be in the 675-725range depending on A8 v M6, etc.
Personally, I would like to go for no alky injection and instead use race fuel to get more timing on occasion.  |
I agree with this to a point. On the street I'll probably run a mix of 92 and e85... for track days I'll probably run pure e85.
I plan to have it tuned on pure E85 but instruct my tuner to keep timing conservative as the car probably won't the temps on a dyno that it will on track, and this way I can do less to diminish the cooling properties of E85. I'd think track temps will get MUCH higher as the car will be basically full tilt for 20-30 mins, as opposed to just 3-4 dyno pulls. I also don't plan to go much higher than 9psi for the same heat-related reasons.
I originally spec'd the built for the car to have low DCR, low-ish temps (for a PD Blower), and be very responsive/punchy at any RPM. However I was thinking I'd see 600-625whp... And then I saw a recent-ish thread that had the same setup I have but with stock exhaust and no cam, and it made 640/640. So I immediately knew my car would surpass my expectations (and that's also why I bought drop-in pistons), and now it's just managing heat. So even if we go super-low on timing it should still make mid-high 600s, which is just fine with me
I am curious how cool it'll stay with those 3 big ass HXs tho.
Quote:
Originally Posted by KingLT1
Yea I seen that thread but I also seen another thread where 660whp was where they settled for safety with e60, cam, lt4 parts...that might of been a A8 car though....cant remember off hand. Either way I agree 660-720whp range depending on several variables.
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This basically solidifies my decision to not buy any more fueling parts til it's dyno'd/tuned. If there's not a need to spend another $1k+ I won't do it.