Going from NA to FI
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 1,092
Likes: 355
From: Houston Texas
2025 C8 of the Year Finalist - Modified
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Okay guys final results are 644RWHP/564TQ with 8PSI. VERY conservative tune. After break in I'm going with a 3.4 pulley and new fuel pump and should make over 700hp. I'm very happy with the build for 91 octane. On the down side she's going right into storage since I'm moving and in-between jobs Just retiring from the AF after 26 yrs. Here are the details
LEP CUSTOM 383
JE PISTONS
LS7 LIFTERS
LS2 INTAKE
LS2 FUEL RAILS
POWERBOND SFI BALANCER
LEP 4340 CRANKSHAFT
LEP H BEAM RODS
CLEVITE MAIN BEARINGS
AFR 205 61cc(thought they were 59cc)
LG G5XB CAM (G5X3 WAS wearing funny so I sent it bk to LG for eval)
A&A KIT WITH V3 SI 3.6 pulley
COMPRESSION 10:4
When I get access to a computer I will post dyno
Here is the dyno sheet:
http://img.photobucket.com/albums/v1...d/scan0001.jpg
LEP CUSTOM 383
JE PISTONS
LS7 LIFTERS
LS2 INTAKE
LS2 FUEL RAILS
POWERBOND SFI BALANCER
LEP 4340 CRANKSHAFT
LEP H BEAM RODS
CLEVITE MAIN BEARINGS
AFR 205 61cc(thought they were 59cc)
LG G5XB CAM (G5X3 WAS wearing funny so I sent it bk to LG for eval)
A&A KIT WITH V3 SI 3.6 pulley
COMPRESSION 10:4
When I get access to a computer I will post dyno
Here is the dyno sheet:
http://img.photobucket.com/albums/v1...d/scan0001.jpg
Last edited by DNAST1; Jun 22, 2010 at 02:37 PM.
Melting Slicks
Joined: Feb 2006
Posts: 3,156
Likes: 247
From: LAS VEGAS NV
St. Jude Donor '08
Nice numbers on 91 octane!!
garth worked on my twin turbo c5z vette , motor install and all the work.
He did an amazing job! and was very very fair with me! Stand up guy.
Put some 100 octane and watch those numbers climb to 720-750..besides it 100* in vegas does not help at all!
[/QUOTE]
garth worked on my twin turbo c5z vette , motor install and all the work.
He did an amazing job! and was very very fair with me! Stand up guy.
Put some 100 octane and watch those numbers climb to 720-750..besides it 100* in vegas does not help at all!
Okay guys final results are 644RWHP/564TQ with 8PSI. VERY conservative tune. After break in I'm going with a 3.4 pulley and new fuel pump and should make over 700hp. I'm very happy with the build for 91 octane. On the down side she's going right into storage since I'm moving and in-between jobs Just retiring from the AF after 26 yrs. Here are the details
LEP CUSTOM 383
JE PISTONS
LS7 LIFTERS
LS2 INTAKE
LS2 FUEL RAILS
POWERBOND SFI BALANCER
LEP 4340 CRANKSHAFT
LEP H BEAM RODS
CLEVITE MAIN BEARINGS
AFR 205 61cc(thought they were 59cc)
LG G5XB CAM (G5X3 WAS wearing funny so I sent it bk to LG for eval[)
A&A KIT WITH V3 SI 3.6 pulley
COMPRESSION 10:4
When I get access to a computer I will post dynouQUOTE=DNAST1;1574128156]Well for the guys that have been following along I received a phone call that I did not want to hear! She let go on the final pull
Garth said all the parameters were good and was not pushing it when a puff of smoke/hiccup happen. He has all the logs for me to look at when I come down. Current pulley is a 3.6. Numbers were in the low 600s with the crappy 91 octane and air. I will know more when I go down to the shop tomorrow. I am so dissappointed she let go before I had a chance to drive her...enjoy it some what! DAMN IT! Going from NA to FI is NOW really going to cost me! BUT now that the damage is done what do you guys think I should go with with my current set up? Forged 347, 383, 402? I only want to do this once. Would like to get into the high 600s or break 700hp
LEP CUSTOM 383
JE PISTONS
LS7 LIFTERS
LS2 INTAKE
LS2 FUEL RAILS
POWERBOND SFI BALANCER
LEP 4340 CRANKSHAFT
LEP H BEAM RODS
CLEVITE MAIN BEARINGS
AFR 205 61cc(thought they were 59cc)
LG G5XB CAM (G5X3 WAS wearing funny so I sent it bk to LG for eval[)
A&A KIT WITH V3 SI 3.6 pulley
COMPRESSION 10:4
When I get access to a computer I will post dynouQUOTE=DNAST1;1574128156]Well for the guys that have been following along I received a phone call that I did not want to hear! She let go on the final pull
Garth said all the parameters were good and was not pushing it when a puff of smoke/hiccup happen. He has all the logs for me to look at when I come down. Current pulley is a 3.6. Numbers were in the low 600s with the crappy 91 octane and air. I will know more when I go down to the shop tomorrow. I am so dissappointed she let go before I had a chance to drive her...enjoy it some what! DAMN IT! Going from NA to FI is NOW really going to cost me! BUT now that the damage is done what do you guys think I should go with with my current set up? Forged 347, 383, 402? I only want to do this once. Would like to get into the high 600s or break 700hp
Tech Contributor
Joined: Apr 2007
Posts: 10,924
Likes: 78
From: Forney Texas
Damn man! You've really been through it haven't you?
I like the 403 (aka408) iron blocks. They're 80lbs more, but that typically only seems to matter to the road racing crowd. They're less expensive up front and easier to repair if anything goes wrong. I bored mine .005 to keep the cylinder walls nice and meaty and leave room to clean up any cylinders if something should happen. If you decide to go aluminum, might as well go 413 or wet sleeve your block and go even bigger.
I like the 403 (aka408) iron blocks. They're 80lbs more, but that typically only seems to matter to the road racing crowd. They're less expensive up front and easier to repair if anything goes wrong. I bored mine .005 to keep the cylinder walls nice and meaty and leave room to clean up any cylinders if something should happen. If you decide to go aluminum, might as well go 413 or wet sleeve your block and go even bigger.
