G-Force 402 LS2 D-1 Procharger C6 Results!
06-02-2006, 01:50 PM
#1
8 Sec Tuner
Thread Starter
iTrader: (2)
Join Date: Jan 2002
Location: Wish I was in a boat fishing...
Posts: 4,641
Likes: 0
Received 0 Likes
on
0 Posts
G-Force 402 LS2 D-1 Procharger C6 Results! It's been a long time coming for this project. This was one of the first C6's off of the lot in Houston. As soon as he started it we began figuring out which direction we wanted to head. After tossing around a couple of ideas, we came up with an LS2-Based stroker and big boost.
Not a few months later we had a brand new low-compression LME 402 with AFR 225 heads sitting in the shop. We also had a fully built transmission and rear-end as well as C5 half-shafts and a new clutch. We spent a week putting the car together making sure that everything was perfect.
After the initial fire-up it didn't take long to realize that the clutch was not disengaging. The clutch we were sent was not built right and would not disengage. Just seconds after that the engine started to rod knock and the oil pressure took a serious dive. We put the car up in the air and pulled the oil pan to find that the clutch had pushed the crankshaft forward and had destroyed the thrust bearing in the block. So we pulled the engine out.
A few weeks later we had another LME 402 LS2 shortblock back in the shop. At this point we were so busy with customer cars we didn't have any time to work on the car, so it went back to our house and sat in the garage. So the engine sat.
After a few weeks of down time with the project it was time to start on it again. We trailered the car back to the shop and started over from square one. In went the new engine and the D-1 Procharger.
We put the car all back together complete with gauges and fuel system, and get ready to put her on the dyno. The first pull netted 600 RWHP at only 2 PSI. But something still wasn't right. The transmission was popping out of gears. So we stopped.
We took the transmission back out and sent it to Joe @ T56Rebuilds. He took it all apart for us and did some investigation. Turns out the sliders in a C6 transmission are .090" thicker than the sliders in a C5 Transmission. Well our C6 transmission had C5 sliders in it, so the transmission wouldn't stay in gear. We also were told we needed to change the pilot bearing in the crankshaft as well. So we wait a few more weeks for the parts to get to Joe.
Now fast-forward to yesterday. We get the car all back together and decide to put it on the dyno one more time.
Here's a rundown of the setup:
8.5:1 LME LS2 402
AFR 225 heads ported by LME
Custom GForce/LME Blower Cam
D-1 Procharger @ 7 PSI
MSD Boost-A-Pump
60 lb/hr Fuel Injectors
Kooks 1 7/8 Headers
Kooks Off-Road X-Pipe
Corsa Cat-Back Exhaust
We talked to ProCharger this morning and they are working on an 8-Rib Pulley setup. Once that is ready we are going to turn the boost up and shoot for 800RWHP on 93 Octane.
Not a few months later we had a brand new low-compression LME 402 with AFR 225 heads sitting in the shop. We also had a fully built transmission and rear-end as well as C5 half-shafts and a new clutch. We spent a week putting the car together making sure that everything was perfect.
After the initial fire-up it didn't take long to realize that the clutch was not disengaging. The clutch we were sent was not built right and would not disengage. Just seconds after that the engine started to rod knock and the oil pressure took a serious dive. We put the car up in the air and pulled the oil pan to find that the clutch had pushed the crankshaft forward and had destroyed the thrust bearing in the block. So we pulled the engine out.
A few weeks later we had another LME 402 LS2 shortblock back in the shop. At this point we were so busy with customer cars we didn't have any time to work on the car, so it went back to our house and sat in the garage. So the engine sat.
After a few weeks of down time with the project it was time to start on it again. We trailered the car back to the shop and started over from square one. In went the new engine and the D-1 Procharger.
We put the car all back together complete with gauges and fuel system, and get ready to put her on the dyno. The first pull netted 600 RWHP at only 2 PSI. But something still wasn't right. The transmission was popping out of gears. So we stopped.
We took the transmission back out and sent it to Joe @ T56Rebuilds. He took it all apart for us and did some investigation. Turns out the sliders in a C6 transmission are .090" thicker than the sliders in a C5 Transmission. Well our C6 transmission had C5 sliders in it, so the transmission wouldn't stay in gear. We also were told we needed to change the pilot bearing in the crankshaft as well. So we wait a few more weeks for the parts to get to Joe.
Now fast-forward to yesterday. We get the car all back together and decide to put it on the dyno one more time.
Here's a rundown of the setup:
8.5:1 LME LS2 402
AFR 225 heads ported by LME
Custom GForce/LME Blower Cam
D-1 Procharger @ 7 PSI
MSD Boost-A-Pump
60 lb/hr Fuel Injectors
Kooks 1 7/8 Headers
Kooks Off-Road X-Pipe
Corsa Cat-Back Exhaust
We talked to ProCharger this morning and they are working on an 8-Rib Pulley setup. Once that is ready we are going to turn the boost up and shoot for 800RWHP on 93 Octane.
06-02-2006, 03:23 PM
#6
TECH Addict
iTrader: (11)
Join Date: Jan 2003
Location: Minnesota Corn Fields
Posts: 2,451
Likes: 0
Received 9 Likes
on
8 Posts
Originally Posted by TroubledWine3
662/589 at only 7#s is serious numbers. Very good job.
About the 2psi, I almost think it was a typo and he meant the 600rwhp pull was 5#, not 2#.
About the 2psi, I almost think it was a typo and he meant the 600rwhp pull was 5#, not 2#.
Yes that would make more sense
Trending Topics
06-02-2006, 03:37 PM
#8
Launching!
Join Date: Nov 2005
Posts: 213
Likes: 0
Received 0 Likes
on
0 Posts
wow, awesome numbers!! you guys do some great work.
i have a built 404ci motor with et 245cc heads and a 230/236 cam with an F1R blower making 11psi... any thoughts on the numbers it should produce? Meth injected as well!!
i have a built 404ci motor with et 245cc heads and a 230/236 cam with an F1R blower making 11psi... any thoughts on the numbers it should produce? Meth injected as well!!
06-02-2006, 03:40 PM
#10
8 Sec Tuner
Thread Starter
iTrader: (2)
Join Date: Jan 2002
Location: Wish I was in a boat fishing...
Posts: 4,641
Likes: 0
Received 0 Likes
on
0 Posts
This engine has a Lunati crankshaft, Lunati Pro-Billet rods, and custom Wiseco pistons.
Your F1-R setup should make some pretty impressive power. I would say about 800RWHP.
Your F1-R setup should make some pretty impressive power. I would say about 800RWHP.
06-02-2006, 05:06 PM
#15
TECH Senior Member
iTrader: (3)
Join Date: Apr 2006
Location: Western Burbs of Detroit
Posts: 6,524
Likes: 0
Received 1 Like
on
1 Post
That is exactly what I want to do when my 346 is not enough motor anymore. I would love something in the 700 rwhp range. I love nailing it with 473/431 hp/tq
at the wheel. I couldn't imagine over 200 more. Absolutely sick, keep us posted on the #'s this thing makes with further tuning. What kind of money are we talking to do this motor??
at the wheel. I couldn't imagine over 200 more. Absolutely sick, keep us posted on the #'s this thing makes with further tuning. What kind of money are we talking to do this motor??
