Project: PBR-Built Z/28

[JoeliusZ28]

Cant speak to the injectors, but would like see an X-pipe and the choke-masters gone.

Lol. I built it this way intentionally because I wanted the sound. I figured dual 3" would be "OVRKILL" for my power level anyway, it certainly doesnt have any trouble breathing

[jetice]

I would say from a search on tech that you should be fine (granted its ls based, but should still be close): http://ls1tech.com/forums/pcm-diagno...injectors.html

Cant speak to the injectors, but would like see an X-pipe and the choke-masters gone.

open headers for the win


and that is an h-pipe there smarty pants

[mcalus]

Also curious about injectors... Since we relitavily have the same setup.

[JoeliusZ28]

I would say from a search on tech that you should be fine (granted its ls based, but should still be close): http://ls1tech.com/forums/pcm-diagno...injectors.html



open headers for the win


and that is an h-pipe there smarty pants

Do LS cars use the same capacity injectors? I can't even remember what LT1s have stock.

Oh, and I definitely tried to start the car open headers today... freakin fuel pump wouldnt fire for me one last time! Boo!

[jetice]

Stock for 94+ lt1 is 24#-hr. And boo is right! I couldn't imagine how loud your car would be with open headers

p.s. I thought they had 26's in them. You are right on the edge for a 24#

[JoeliusZ28]

Hmm, ill have to check into that.

Also, i will 100% for sure be doing SLP springs/shocks this winter as well as new founders LCAs and installing that torque arm. I will plan on a project beer & pizza day sometime this winter. I expect it to be a completely different car in the spring .

[hoogiesngrinderz]

Mathematically you are at 100% on duty cycle, and quite possibly going lean at upper RPM. 30# injectors seem to be the normal for 450 bhp NA engines.

[birdie2000]

IIRC, LS1s have a higher base fuel pressure which usually gives an injector more flow.

[JoeliusZ28]

Mathematically you are at 100% on duty cycle, and quite possibly going lean at upper RPM. 30# injectors seem to be the normal for 450 bhp NA engines.

Thanks man, can i ask how you calculated that?

[OVRKILL]

I would say from a search on tech that you should be fine (granted its ls based, but should still be close): http://ls1tech.com/forums/pcm-diagno...injectors.html



open headers for the win


and that is an h-pipe there smarty pants

lol...whiskey factor. Well aware of the diff in a X and an H. Meant to say wanted to see an X..........and while you're at it. Ah hell never mind

[bri2203]

Hmm, ill have to check into that.

Also, i will 100% for sure be doing SLP springs/shocks this winter as well as new founders LCAs and installing that torque arm. I will plan on a project beer & pizza day sometime this winter. I expect it to be a completely different car in the spring .

Good to hear! glad you will stepping up!

[OVRKILL]

Thanks man, can i ask how you calculated that?

good start....

http://www.gtsparkplugs.com/InjectorSizeCalc.html

[bri2203]

Hmm, ill have to check into that.

Also, i will 100% for sure be doing SLP springs/shocks this winter as well as new founders LCAs and installing that torque arm. I will plan on a project beer & pizza day sometime this winter. I expect it to be a completely different car in the spring .

Good to hear! glad you will stepping up!

[ryanwarby01]

I thought the stock injectors were 28lb/hr

[hoogiesngrinderz]

Thanks man, can i ask how you calculated that?

(Brake Horsepower X Brake Specific Fuel Consumption)/(Number of Injectors X Duty Cycle)

This is with the injectors flow rated at 43.5 psi. I like to see the duty cycle below .85. BSFC is typically between .45 and .50 for NA cars - .50 is normally used for the calculation