How much boost (or cfm) can the v8 take stock?

[1bad98SHO]

the injector is an on off switch basically. Only thing i could see messing with the flow of fuel coming out of the injector would be a vacuum of some sorts. I dunno.

 

[Ishodu]

First off what do you mean splitting on a v6, I'm not nor have I ever heard of doing that.


Secondly, the guy I talked to, said number 5 was the problem so I concur on that.

~Clayton~

Like this.

 

[1995SHO9]

I don't ahve that done.

I just run the base sho nutz regulator kit?

 

[firebat45]

The high flow kit has that. Turns the fuel system into a semi-returnless setup, which has it's pros and cons.

Pro is more flow and no need for charcoal canister since you don't have heated fuel being sent back to the fuel tank.

Cons is that now you have a higher chance of boiling the fuel in the rails, since the fuel doesn't flow through the rails anymore, it just flows in and sits there until used by the injectors.

Personally, I think that the rails should be kept as a return style. If they can't flow enough for high horsepower setups, then run a feed into each rail and an return off the end of each rail. You'll have the same flow capacity as SHONUT's setup, but without the fuel heating. In fact, it'll be heated even less than the stock setup, that way.

Here, I've made a horrible diagram to put my text into pictures. Top is stock/Josh's base FPR, middle is Josh's high flow FPR, and bottom is what I'm going with. I've drawn the feed and return directions on each setup.

 

[SHOZ123]

That is what I read as well. So the problem is not the pistons themselves but poor fuel delivery.

I'd lean more towards poor tuning.....

 

[SHOspazz92]

First off what do you mean splitting on a v6, I'm not nor have I ever heard of doing that.


Secondly, the guy I talked to, said number 5 was the problem so I concur on that.

~Clayton~

Then it must not have ever been done. :laugh_ti:

-Sam

 

[Ian Macoomb]

I'd lean more towards poor tuning.....

Ding, ding, ding.

 

[Off Road SHO]

I use the system that Firebat described in his third ...ummm... diagram. I had it polished though.

Tom

 

[Sho Amo]

the fpr is at the end of your setup tom?

im kinda surprised that doesnt cause problems since the regulator is after the rail?

 

[Ict_Lx]

AFIK, no one has really pushed the V8 motor due to lack of a sufficient transmission to handle to power. With new ATX's being run that seem to handle additional power (Eric) and people running around with Kirks MTX conversions, I expect that to change in the next couple of years.

 

[AREA 91]

Never have heard how much the v8 motor can take, is it as strong as the v6? (Assuming a good A/F ratio and good tuning)

Thanks in advance.

Why? Did you hit the lotto and buy a gen III?

 

[1995SHO9]

Then it must not have ever been done. :laugh_ti:

-Sam

Your an ******

Why? Did you hit the lotto and buy a gen III?

Maybe....

 

[Brett]

3psi.

 

[1995SHO9]

3psi.

oh bust!

 

[SHO U UP]

I'm shooting for about 8#s on mine, give or take. And the fuel system will be assembled and modified so their will be no fuel starvation. And of course, like Paul said, it has to be tuned correctly. The modified tranny should do it just fine. Normally, anything over 10-12 pounds on a stock block, other than a GT500 that I know of, will quickly expose the piston from the outside and you will have one helluva quick oil change. And why isn't this thread on the V-8 discussion section anyways??

 

[firebat45]

the fpr is at the end of your setup tom?

im kinda surprised that doesnt cause problems since the regulator is after the rail?

You do realize that the FPR is always after the rail right?

The feed goes straight into the rail and the FPR is on the return line coming off the rail. The FPR just "holds back" the pressure and lets excess past.

Tom, glad to hear it works for you. I wasn't sure if anyone had done the fuel system like that, but it made the most sense to me.

 

[HotRodKid]

did you know that if you say gullible real slow it will sound like green frog?

hey that isnt true !!!!
.....
.
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.
.
.
.
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.my first thought was "thats impossible because green frog has 2 r's in it" so dont go thinking i actually said it out loud, lol

 

[jasenklems]

I heard that a mazda 6speed will bolt to the 3.4l v8 dont know if it true or not but thought that might help you out

 

[MerkXRTurbo]

From what I understand, the 3.4 V8 is designed off of the Duratec block, so if there is indeed a good Mazda tranny that bolts the the Duratec then it seems reasonable.

 

[Ian Macoomb]

Scott K (aka Venom) has his bolted up to a Mazda 6 tranny for what it's worth.