I think I am low on rwhp

[Js2fst]

I have a a ls3 6 speed car with 3.91 gears and 1 7/8 headers arh headers, hi flow cats, dual 3" magna flow exhaust. Fast 102 ported intake, mast black label heads, catch can, ported tb, cam dur227-239, lift 623-620, 114 lsa, fuel rails, dyno tune.

It dynoed 492.3 rwhp and 451.3 torque. I am wondering if I need more fuel torque peak is at 5000rpm. I have since bought a lonnies dual pump. Do you think we have maxed out pump or will it help.

[BubbaSS]

Numbers look about right...wouldn't worry about it unless you aren't impressed with the performance gain.

[Js2fst]

I want to make sure we are right before Procharger goes on. I am reading that factory fuel pump is maxed out to this

[Jewbeanie]

As BubbaSS said numbers look right and for any further performance gain it would be wise to upgrade the fuel pump as what Ive read from other uses who went into higher horsepower applications.

[Js2fst]

More mods to come for sure. we have a new 408 from a 4th gen build. So I am debating on using it. But a reliable car

[Rico]

If you plan to add a procharger, you will definitely want to upgrade your fuel pump.

[Js2fst]

I already got it trying to use a bap with it I might try the msd or bell or a fuel charger

[62nalide]

Originally Posted by Js2fst

More mods to come for sure. we have a new 408 from a 4th gen build. So I am debating on using it. But a reliable car

Numbers are right on the money, you do know you won't make a 24 tooth reluctor wheel work on your car. That 408 will need to be taken apart to work. You already spent all that money just to swap it out?

[Js2fst]

Already did it

[BLACK10]

Originally Posted by 62nalide

Numbers are right on the money, you do know you won't make a 24 tooth reluctor wheel work on your car. That 408 will need to be taken apart to work. You already spent all that money just to swap it out?

LPE makes a conversion box to have a 24x crank in a 58x car like the 5th gen camaro. Atleast they did for a while...we did some testing for them

Nick

[Js2fst]

I called them and they don't anymore. So I had the wheel changed

[trozhaiha]

we have a new 408 from a 4th gen build.

[Js2fst]

Originally Posted by trozhaiha

we have a new 408 from a 4th gen build.

Yes selling car as a roller had reluctor wheel changed can't decide to build another one with 6 bolt block or sell this one or use it or use ls3 motor with mast heads

[christianchevell]

A good tuner should tell you if the fuel pump is maxed out with its duty cycle, if you had a tune from a software as in h.p. etc ..... and yes for a charger of course you should up grade the fuel pump and maybe a boost a pump and the supporting fuel mods.... injectors etc ................. Yours was a spendy build as far as net gains you went lite on the cam which is good for a boosted with the duration and LSA being more mild but went spendy on low net gains from the throttle body, and certainly the fast intake, the heads though are why your at where you are for gains and your right in the neighborhood of where you should be. Torque will be more built by the intake, and you are most likely not maxed out with the stock pump but close enough of course with further power adders to need it and then the intake you have may help may a little more but still will be limited with its runner length and is mostly for a set rpm range as has been discussed here a lot and why people are waiting to maybe buy the vararam even though its huge looking, or may be getting the airforce, or still haven't seen someone with the huge Nelson unit. Of course you will gain a lot of torque from FI, and wonder why you chose a procharger rather than other FI , yet the choices sometimes are made for particular build desires. Myself I wanted big NA on a budget.....