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LSX 454 solid roller , Need some opinions

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Old Dec 17, 2011 | 06:29 PM
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Default LSX 454 solid roller , Need some opinions

Hi , Now and this week we'll start to build my LSX 454 motor in our workshop , It will go inside 2001 Trans Am , The car has full BMR suspension , RPM T56 transmission , Dana S60 rear end 3.54 ratio , Wolfe 6 point chrome moly cage
So the engine details is

* LSX 454 short block CR 13:800
* All Pro LS7 intake runner 280cc Chamber 58cc , Intake valve 2.200 , Exhaust 1.600 , Springs 900lift
*Mast LS7 EFI 4500 intake with accufab 4500 throttle
*Solid roller 27x\28x 8xx\8xx 114


Fuel details

* 60lbs injectors , Fast fuel rails
* Aermotive 340 fuel pump in tank


The car will runs C16 N/A and C16 with the spray through stand alone fuel system , Will install Wilson 4500 2 stage plate system

How much you guess it will pulls N/A at the wheels ?

I'll use this car for street race and it's for racing only from a dig or rolling

What you guys reccomend , if anything is missing please let me know i apprecaite your help
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Old Dec 17, 2011 | 06:36 PM
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Add a dry sump with some good scavenge stages or a vac. pump and let her eat. On motor 720-730rwhp SAE at least is what I would expect if that my was setup.
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Old Dec 17, 2011 | 06:59 PM
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How much the vacuam pump setup cost? and where can i get it from ?
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Old Dec 17, 2011 | 07:38 PM
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GZ Motorsports, around $1000.
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Old Dec 17, 2011 | 08:12 PM
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Originally Posted by PONTIAC SLP
* All Pro LS7 intake runner 280cc Chamber 58cc , Intake valve 2.200 , Exhaust 1.600 , Springs 900lift


What you guys reccomend , if anything is missing please let me know i apprecaite your help
You'll make some good power with what you have BUT......
Since you're spraying this engine I would've gone with the larger intake runner that All Pro makes.
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Old Dec 17, 2011 | 09:56 PM
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Why are you using the mast intake over the All Pro intake?
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Old Dec 18, 2011 | 02:32 PM
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Default A nitrous build engine...

is not the top HP producer N-A, IMO, and i would keep stroke to 4.00", however who cares that your rings are 0.08 wider, if you want it for comp.
Where you place the shifting points in the design of your cam will dictate your power making ability N-A. For NOS you'll need a 115 lsa or so, again somewhat detracting from your N-A meet range, but hey, 250 shot will have the answer. I will definitely have Patrick G design the cam for the one shot to the top solution, unless you want to try 3 or 4 different cams in quest for the good one. Camhelp@gerragroup.com for $25 bucks is the best deal in high performance today, he will else direct you on the correct parts for the job, so is best to contact him before you start expending, so you just buy it all, ones, i know i gave you info you did not request, but hey, the wise will appreciate it, yeah I'll take a shot, i say meet 740/750whp N-A is in the window. I think for a good shot, compression in 12.00 to 1 is optimal, and still, before you start the new motor have the strongest starter you can get your hands on, cause your stock one will not do, as will take a lil longer to start [in the case of ECM tuning] causing extra fuel injected at start trowing off, the work of your tuner, in every attempt, good luck with your build, take your time do it rite, do it ones....
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Old Dec 18, 2011 | 06:51 PM
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Originally Posted by Firehawk441
You'll make some good power with what you have BUT......
Since you're spraying this engine I would've gone with the larger intake runner that All Pro makes.
I already purchased the heads , But do you think with my setup and kooks 2 inch headers and nitrous 300HP will runs good ? Or it's important to replace the heads to bigger intake runners ?

Originally Posted by koolrayz
Why are you using the mast intake over the All Pro intake?
Because i seen alot of gains for the Mast 2 piece LS7 intake by Carry , And i think it's the best way to go ?

Originally Posted by CAMSTER
is not the top HP producer N-A, IMO, and i would keep stroke to 4.00", however who cares that your rings are 0.08 wider, if you want it for comp.
Where you place the shifting points in the design of your cam will dictate your power making ability N-A. For NOS you'll need a 115 lsa or so, again somewhat detracting from your N-A meet range, but hey, 250 shot will have the answer. I will definitely have Patrick G design the cam for the one shot to the top solution, unless you want to try 3 or 4 different cams in quest for the good one. Camhelp@gerragroup.com for $25 bucks is the best deal in high performance today, he will else direct you on the correct parts for the job, so is best to contact him before you start expending, so you just buy it all, ones, i know i gave you info you did not request, but hey, the wise will appreciate it, yeah I'll take a shot, i say meet 740/750whp N-A is in the window. I think for a good shot, compression in 12.00 to 1 is optimal, and still, before you start the new motor have the strongest starter you can get your hands on, cause your stock one will not do, as will take a lil longer to start [in the case of ECM tuning] causing extra fuel injected at start trowing off, the work of your tuner, in every attempt, good luck with your build, take your time do it rite, do it ones....
Yeah you're all right , And thanks for your input , This cam spec'd from Cammotion for those heads and they flows +410CFM @ 800-850lift , I'll email Patrick for a cam and see what he'll spec me a cam , The maximum shot i'll spray is 400HP, Thanks much
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Old Dec 18, 2011 | 07:40 PM
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Originally Posted by PONTIAC SLP
But do you think with my setup and kooks 2 inch headers and nitrous 300HP will runs good ?

YES. It will run in the 8's fairly easy. The larger port would work better with much more nitrous then that.

i seen alot of gains for the Mast 2 piece LS7 intake by Carry , And i think it's the best way to go ?
That intake will work fine
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Old Dec 18, 2011 | 08:11 PM
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Originally Posted by Firehawk441
That intake will work fine
Forget to say how about the WS6 hood clearance with this intake and accufab 4500 throttle ? , Or need raised WS6 hood ?
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Old Dec 19, 2011 | 05:32 AM
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Originally Posted by PONTIAC SLP
Forget to say how about the WS6 hood clearance with this intake and accufab 4500 throttle ? , Or need raised WS6 hood ?
You're going to need a higher hood.
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Old Dec 19, 2011 | 09:34 PM
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Do i need to upgrade the brake cyilnder to BMR conversion brake cylinder ? http://www.summitracing.com/parts/BMR-MBK001/
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