Aftermarket FPR on NA?

[NoDOHC]

Originally Posted by RETed

I'd serious doubt 4 x 460's could hit 300 at the wheels even at best case on an NA 13B

I don't know (as I have never done it) but if my engine can make 216 at 63% duty, it is possible to make 300 at 90% duty.

216/63 = 308/90.

Like I said, I can't prove it as it has not been done, but it should work that way (as long as the BSFC remains constant with a more powerful engine).

I think this is a mute point anyway, as there is no reason that the OP needs to worry about his fuel system for an NA build, if he goes lean from fuel starvation, he may lose power... It isn't going to mean an engine rebuild for him.

Thumper:
If I were you, I would take jerd_hambone and RETed's advice and worry about the intake manifold. you will see significantly more gains from prudent intake modifications than you will see from spending a lot of money on an already functional fuel system.

[Thumper]

Originally Posted by RETed

The non-turbo 13B's biggest disadvantage to making lots of power is it's stock intake system.
You'll need to scrap the stock intake manifolds if you're going for serious power on an NA 13B.-Ted

Originally Posted by NoDOHC

Thumper:
If I were you, I would take jerd_hambone and RETed's advice and worry about the intake manifold. you will see significantly more gains from prudent intake modifications than you will see from spending a lot of money on an already functional fuel system.

As far as the intake is concerned what do you suggest? Going the custom route? I also read that converting to a carb or ITBs will give higher gains, but Id like to stay away from carbs and I came up short when looking into the ITBs, any info on those?

[RotorDad]

Kinsler twin blade Dominator style.


TWM 62mm 4 injector ITB's

[RotorDad]

Originally Posted by Thumper

As far as the intake is concerned what do you suggest? Going the custom route? I also read that converting to a carb or ITBs will give higher gains, but Id like to stay away from carbs and I came up short when looking into the ITBs, any info on those?

TWM which is now Borla Induction has ITB's, get an IDA manifold your good to go.
http://www.twminduction.com/Throttle...leBody-FR.html
62mm 4 injector IDA style



Kinsler Fuel Injection has a twin blade Dominator style throttle body you will need a Holley style manifold.
http://www.kinsler.com/page--New-Products--3.html



There are a few other ITB's & a few 4 barrel Holley style throttle bodies out there just don't remember off the top of my head. Then again like ReTed suggested go turbo.

[RETed]

If power is the ultimate goal, I would just go turbo...


-Ted