How Much Fuel
09-13-04, 01:39 PM
#1
240RWHP 270TRQ @ 0.9Bar
Thread Starter
How Much Fuel
I just picked up a TD07 25G turbo and am now on the look out for injectors. It goes without saying that I need 1600cc secondarys, but what about my primarys. I'm shooting for approx. 400rwhp. According to the fuel calc. on rx7.com, 720cc primary and 1600cc secondary @ 80% duty cycle is good for over 500hp @ the flywheel. My question is this, on average how much hp is lost between the flywheel and the ground? Do I really need to run 720cc primarys or will I be safe with the stock 550cc?
Like I said, I'm shooting for 400rwph @ about 15psi.
Any thoughts?
Like I said, I'm shooting for 400rwph @ about 15psi.
Any thoughts?
09-13-04, 02:24 PM
#2
Rotary Enthusiast
Join Date: Jul 2003
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550 prims and 1600 secs are fine for that setup, im shooting for at least 400whp on a gt 35/40 but im going with the 1000 prim/1600 sec combo from rx7store cause I <3 overkill.
09-13-04, 02:53 PM
#3
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Location: Gaithersburg, MD / WVU
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550/1600 should be fine for your setup... thats what i run, some people say that you notice a stuble during the injector transition... ive felt it but its only in like 4th gear starting at low rpms.
09-13-04, 07:50 PM
#5
It doesn’t take very much effort if you want to take your unused 850s and modify your primary rail to accept them and give yourself a higher margin of safety in the fuel department. Plus if you ever need it will be there ready to go.
edit:
2nd gen woops! doesn’t apply, fds can be easily modified.
edit:
2nd gen woops! doesn’t apply, fds can be easily modified.
Last edited by rotarypower101; 09-13-04 at 07:52 PM.
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