Chaned my mind on the whole water injection thing... I really dont think it is needed.

 

it maybe an extra 2000 for the kit and install but its well worth every penny.
if you plan on going past 16psi very much.

 

Thats the thing, as of now im only going to 16psi max.. mabey in the next year or so i will get the kit when i get motor work done.

 

Dunno, was never dyno'ed. Ran a 10.73@128mph though.
stock primaries, 1600 sec., apexi fuel pump

 

Hey Rich,
Mark Whites car made 430ish rwhp on stock ports and a t66. and we were also running 720cc pri and 1300cc sec with a walbro 255 rewired for 12.8v @ wot and
were getting low 70% duty cycle @ 16psi! So it is definitely possible.
-J

 

You dont need water injection , just enough fuel and a good tune. 25psi with those injectors and a single fuel pump and your going to blow that core.

Call Ari and let him give you some advice , hes run that T78 set up for years and knows it inside and out.

 

I'm *very* happy to learn that you ran 25 psi boost pressure with the apexi fuel pump....looks like I might be able to crank the 500R up with my existing fuel system.

I'm running one of them (apexi bnr32 or 33) and was worried about the internal diverter valve which limits fuel px to 75 psi (vs 90 psi for a supra tt pump), depending on px drop through the system, I didnt want the pump to crap out on me at 2x psi.

Were you running stock fuel lines and stock fuel filter?

More info in the archives here:

https://www.rx7club.com/3rd-gen-archives-73/some-fuel-system-ramblings-578521/

 

Yep, all stock. Actually Demetrios and I raced a CBR 929 on I 70 and the boost went about 28lbs because the vacume line from the wastegate melted shut!

 

haha NICE!

 

Whats the max boost do you think you can run a stock motor (stock port, stock seal, no pinning) before it blows, providing you have all the fuel etc?

 

how long do you want it to last?