which LSx or Lxx motor?

[GTRwilson]

The calculators arent always that accurate. It said you would need 554 rwhp to run that time, but your sig says your ute is only 330rwkw?

 

[vt1538]

my ls3 stroker motor runs high 121 mph in my vu ss with me in it, its race weight is 3924lb (1780kg). morroso hp calcultor puts my ute at 554rwhp to run that mph. AT 1300kg (2866lb) you will need 555rwhp to run a 9.993 @ 135mph.

450 rwhp will run 121 mph @ 1780kg+ driver. I believe either the yanks hp read higher than we do hence 550rwhp on the moroso. Or the moroso runs on fwhp.

 

[burnz]

Do you mean 411? Are there even stroker kits to that exact ci?

411 is a bit small the usual is 427ci...ls1 will go 432max ls2 and i assume they are the same block as ls3 will go 511cu as of 2007 so things change.

The calculators arent always that accurate. It said you would need 554 rwhp to run that time, but your sig says your ute is only 330rwkw?

the moroso is a slide rule that are extreemly accurate like all other slide rules, only human error make the mistakes.

 

[GTRwilson]

411 is a bit small the usual is 427ci...ls1 will go 432max ls2 and i assume they are the same block as ls3 will go 511cu as of 2007 so things change.


the moroso is a slide rule that are extreemly accurate like all other slide rules, only human error make the mistakes.

Well the biggest i can go is 411ci so those other strokers would be no good.

Im sure ive heard of people runing better than what that calculator predicts.

 

[burnz]

Well the biggest i can go is 411ci so those other strokers would be no good.

Im sure ive heard of people runing better than what that calculator predicts.

unbored ls1 you have then, rebore to 4".
ls2 have more room to work with, not so with an ls1

however check comeracing web site they may have sothing new.

 

[SICK SS]

The calculators arent always that accurate. It said you would need 554 rwhp to run that time, but your sig says your ute is only 330rwkw?

sig also says RAPTOR CHARGED 330RWKW VU SS UTE IF IT DOSNT BLOW IT SUCKS

its old. its an N/A ls3 427ci in my ute now

 

[vt1538]

sig also says RAPTOR CHARGED 330RWKW VU SS UTE IF IT DOSNT BLOW IT SUCKS

its old. its an N/A ls3 427ci in my ute now

And your posted dyno sheet for the new combo says 450rwhp(around 330rwkw). Not much change in peak power between the two but the torque in the 427 would be a monster.

 

[SICK SS]

And your posted dyno sheet for the new combo says 450rwhp(around 330rwkw). Not much change in peak power between the two but the torque in the 427 would be a monster.

yeah massive amounts of differents. Never raced it with the raptor blower but had a single turbo setup on the ute after that with 330 rwkw on pwoer torquess dyno best mph was 114mph. Some people swear by the morros calculator dynos have to much human input mph on the track dont lie.

 

[GTRwilson]

after going over redbook looking all the weights, ive found out the largest ci I can have is actually 423ci. Not sure if this slight increase helps me much, but sad to see im 4 cubes short of an LS7.

 

[BradSV8]

Buy an LS3 stroke it to 427 get the heads done and put a big cam in it and it will make your 380rwkw. I wouldnt worry bout the legalities of it you cant tell how big the engine is by lookin at it. Just tell everyone its a stock ls3 with cam.