Anyone on the fence about putting in an LSX?

YouTube - Atomicwedgy Beta .5

Iron LSX block 389ci AFR 225s
APS upgraded twin turbo system
Full Aeromotive fuel system
HPTuners 2bar MAP tune by me:-)
at a whopping 7.0 PSI!!!
625RWHP 630RWTQ
*comming soon*
12-20PSI at a push of a button *E-Boost2*

It took like :20 minutes to get a nice flat AFR out of it and rip off a nice pass.
Just a little BEta testing to make sure everting is in order.
Man the LS-series and boost is just too easy.

the twin system
http://www.airpowersystems.com/ls1/ls2/gto_3_4_front.jpg

engine bay
http://c2.ac-images.myspacecdn.com/images02/38/l_1a72ae52dace48e5a3c586d999561cb5.jpg

twin spools and plumbing
http://c3.ac-images.myspacecdn.com/images02/35/l_a341d3c172e141bcaeae5b16f5944d2a.jpg

cockpit
http://c3.ac-images.myspacecdn.com/images02/56/l_d1ef7c4732784f96a55e35a531b0f06e.jpg

Fuel for 1500RW
http://c4.ac-images.myspacecdn.com/images02/22/l_7afebfc2dc7a438294a0ec517686524f.jpg

No kidding. Thats why Im going LY6 iron 6.0. I have plans for a single 76 on 8lbs, will shoot for an easy 550 RWHP. After that, pistons and rods and pump it up to 12lbs. and maybe get 700 with daily drivability.

you can do 500whp easy in an all motor 6.0 stroker. and still be drivable.

i have a friend with a 00 ws6. stock long block with a 230/236 cam, and nitrous, makes just over 500whp on motor, and best et was 10.68 at 125, but best trap was 130mph. it cuts 1.5 60fts with a 4k stall and stock rear.


aaron

Bbc Ftw!

to be honest im not impressed. an LS motor with AFR heads and two turbos...i know its 7 lbs of boost but that is not really an impressive amount of power for the money spent/ parts used.

to be honest im not impressed. an LS motor with AFR heads and two turbos...i know its 7 lbs of boost but that is not really an impressive amount of power for the money spent/ parts used.

cool

I'll post again at 15 PSI

I'd expect min of 1000hp with twin turbo...some 540's can do those numbers. No disrespect, but I would have thought @ 1200 with that setup/

I'd expect min of 1000hp with twin turbo...some 540's can do those numbers. No disrespect, but I would have thought @ 1200 with that setup/

i agree.

to be honest im not impressed. an LS motor with AFR heads and two turbos...i know its 7 lbs of boost but that is not really an impressive amount of power for the money spent/ parts used.


I agree, twin turbos and not pushiong 1000!?

Also, why go with the iron block with such low boost? Might as well use the aluminum if you aren't going to crank up the boost and aren't using the tall deck:confused:

I'd expect min of 1000hp with twin turbo...some 540's can do those numbers. No disrespect, but I would have thought @ 1200 with that setup/

to be honest im not impressed. an LS motor with AFR heads and two turbos...i know its 7 lbs of boost but that is not really an impressive amount of power for the money spent/ parts used.

I expect my twin turbo LS2 to make 1000+ hp with 17-18 psi of boost, but not at 7 psi. Seems like pretty good numbers to me for such a low boost level........... ;) That's probably 725 to 750 hp at the crank.

Jody

Sounds like pretty good numbers to me. With some more boost and some race gas or meth injection or both he should see alot more power than that. At 7psi he isn't pushing the turbo kit at all.

Sounds like pretty good numbers to me. With some more boost and some race gas or meth injection or both he should see alot more power than that. At 7psi he isn't pushing the turbo kit at all.

yeah we know that. but RIGHT NOW his dyno numbers wouldnt convince me to do the same with the money spent like his opening statement alludes. post again at the higher psi level and it might change peoples minds, but right now, no thanks. 600+ rwhp is great but not at that price.

I agree, twin turbos and not pushiong 1000!?
Also, why go with the iron block with such low boost? Might as well use the aluminum if you aren't going to crank up the boost and aren't using the tall deck


Hold your horses guys.
That 7 PSI was a shake down run to make sure everything was working correct.

The 8.8 Ford pumpkin was a prototype for the Independent rear 05 GTO.
We wanted to put a little heat in it then pull the cover.

This video and numbers is really just a light shake down run post break in.
625rear wheel was at 11.8 AFR at 13degrees spark advance @ 6.5 PSI on a 9.5:1 Comp Ratio motor.

15 PSI runs on Tuesday if the post break in stake down inspection is thumbs up.. 100%.
another 1/2 a bar of boost and this thing is going to wake up.
The owner is chompping at the bit to see 20 PSI.
California 91 pump gas is going to be the limiting factor.
The Glory Runs @ 15+PSI will have to be on 116.

8.8 ford pumpkin eh? That is interesting that would definitely be a strength improvement. Sounds like that thing is gonna need some meth/water injection if it wants to see any kind of boost on pump gas.

Can you explain why you used an Iron block?

The new Cobalt SS (LFN) is an aluminum 2.0 liter turbocharger motor that will produce up to 20 psi(depending on tempatre)

I assume the ZR1 Corvette is still using a alumnum block but likely with far less boost.

Can you explain why you used an Iron block?

The new Cobalt SS (LFN) is an aluminum 2.0 liter turbocharger motor that will produce up to 20 psi(depending on tempatre)

I assume the ZR1 Corvette is still using a alumnum block but likely with far less boost.

durability,
this will be a daily driver and do events like tse Silver State Classic
The iron LSX block also let us go big bore for a nice under square 6 bolt main trunion rockered rev machine.

Also, I dunno if this motor is the best example, but people have proven that switching from an aluminum block to an iron block (all other variables/internals basically the same) can gain power in a boosted application. The reason?, cylinder distortion. On average for the same strength aluminum deflects 3-5 times more than steel. However, for something under 15 psi of boost its not as much of an issue.

just curious, but why the afr's? what about the texas speed ls7 heads or the warhawks? those are the ones im always reading about. i havent heard of many using the afrs....

Tim

just curious, but why the afr's? what about the texas speed ls7 heads or the warhawks? those are the ones im always reading about. i havent heard of many using the afrs....

Tim

Texas speed / Racer head service / ET Street and Performance all make a nice head.
At the shop we have a working relationship with AFR and Tony Mamo.
The CNC Cometition ported 225s will flow great and have the thick deck needed for this application.

update

675RWHP @ the same 7PSI
-just a touch meaner tune
-some break in time on the motor
-some break in time and oil change on the new 8.8" diff

Car is cooling down pre runs

were pulling some plugs checking the fluids
then were easing the boost up in 2 PSI increments....tonight!

update

801RWHP @ 13PSI
91 octane California pump gas!

ok time to drive home and sleep

you can do 500whp easy in an all motor 6.0 stroker. and still be drivable.

i have a friend with a 00 ws6. stock long block with a 230/236 cam, and nitrous, makes just over 500whp on motor, and best et was 10.68 at 125, but best trap was 130mph. it cuts 1.5 60fts with a 4k stall and stock rear.


aaron


I hope he don't expect that 10 bolt to hang out long..lol. I have seen those things break on stock motors with drag radials and a little juice.

I hope he don't expect that 10 bolt to hang out long..lol. I have seen those things break on stock motors with drag radials and a little juice.

he has about 20k street miles on the stock rear, and about 2000 passes on it.
the last time out he let his brother drive, and started the burnout slow and shifted into 3rd instead of leaving it in 2nd, and now it starts to whine.

but auto cars tend to keep the rear longer than the 6spd.

aaron

update

801RWHP @ 13PSI
91 octane California pump gas!

ok time to drive home and sleep

and these guys were giving you a bad time........................... ;)

Jody

I still have head room in the 2bar map change and HPTuners OS update for more boost.
Totaly awsome the tune just rolls back as you roll into the 1st bar of boost.
I tuned it for 6.5, 10, and 13 PSI sweet spots.
Just dial up the boost you want on the e-boost2 and "Blast Off"

We were going to turn it up to 20 PSI. Boss said @ 800+ "were done".
If Travis (the owner) wants more he can bring it back after SEMA and well turn the screws then.

This thing has full length 3" pipes over the half shafts with quiet mufflers.
I know it bottled up past 700RW.

The HP curve flatens out and peaks around 6000RPM @ 5PSI
The HP curve flatens out and peaks around 5500RPM @ 13PSI
as well looking at the boost graph it is plain to see the Eboost to is PWM it buttoff to hold the boost DOWN as the waste gate is fighting back pressure.
No boost creep on my watch!
The boost gragh sine waves at 3000-4000 RPM (on a 10 second pull) as the eboost modulates the waste gates inverse regaurdless of back pressure to maitain the programed boost pressure.

Good change of 116 octane runs a week or two after SEMA.
That is if the owner does not s*%^# himself with 800RW.
He has a fetish for 1000cc sports bikes....he'll be back.

That is a little more like it! I bet that thing is a real beast. As far as his fetish for 1000cc sport bikes goes, I don't think he should have too much trouble taking care of them on the highway even if he can get traction.

Very nice... Cant wait to see it on the road.