415 cui SR engine build up
Thread Starter
Instructor
Joined: Dec 2000
Posts: 244
Likes: 0
From: Sweden
Time for a update.....
Cam installed is a CC306 230/244 0,544/,576 112
The idle with this cam and my low 9.0 comp is a litte rugh but decent. It pulls pretty good from bottom....
I tuned the engine with TC and 8D code in Eprom and got good results, But I suspect the SR is holding it back at 5200 rpm, feels like when I had my 383 and LTR..... Well I had a cure for this...my P600B blower.
With the 9psi pulley I got abot 4 psi at 5200 rpm then my AFR went up so I didnt want to rev it higher, this was with a 9:1 FMU and 30lbs injectors.
I have now changed to $58 code in Eprom to tune spark/fuel under boost. Right now the car runs fine N/A with $58.
No dyno pulls this year.
Updates this year.
- Change to HSR intake to let it breath more
- Change to P/H injectors and ditch the FMU, will use a modified 1227749ECM to control them.
This setup is the first one to tune.
- Later I will add a Procharger F1 and some boost......DOnt know how much boost it will produce with a 4"pulley but I guess about 12 psi...
/N.
Cam installed is a CC306 230/244 0,544/,576 112
The idle with this cam and my low 9.0 comp is a litte rugh but decent. It pulls pretty good from bottom....
I tuned the engine with TC and 8D code in Eprom and got good results, But I suspect the SR is holding it back at 5200 rpm, feels like when I had my 383 and LTR..... Well I had a cure for this...my P600B blower.
With the 9psi pulley I got abot 4 psi at 5200 rpm then my AFR went up so I didnt want to rev it higher, this was with a 9:1 FMU and 30lbs injectors.
I have now changed to $58 code in Eprom to tune spark/fuel under boost. Right now the car runs fine N/A with $58.
No dyno pulls this year.
Updates this year.
- Change to HSR intake to let it breath more
- Change to P/H injectors and ditch the FMU, will use a modified 1227749ECM to control them.
This setup is the first one to tune.
- Later I will add a Procharger F1 and some boost......DOnt know how much boost it will produce with a 4"pulley but I guess about 12 psi...
/N.
Melting Slicks
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Originally Posted by Joe90
Jake,
I started a thread in the motor section a little while back about the engine...
Rocket Block 4.125" bore
Crower Billet road-race crank 4" stroke
Crower Billet rods
JE forged blower pistons
Brodix T1 M2 227cc heads, flowed @ 321 CFM
Jesel 1.7/1.6 split ratio shaft rockers
C/R 13.5:1
Dry-sump oiling system
Victor intake w/FI built by Wilson Manifolds (just like Ski's, but these guys CNC the entire thing once the bungs are welded in and flow-match the runners)
McLeod Street-Twin clutch w/Aluminium flywheel
Cam is custom grind...I'll have the specs later this week. It has .760" lift
1000 CFM monoblade throttlebody
The engine builder has already done this motor (twice now) and is generating 720-735 FWHP from them, but they were built with the older T1 M2's. This new CNC program flows something like 15-20 CFM more air.
I'll need to get the drivetrain behind it beefed before it goes into the car or I'll be hearing expensive noises when I drop the hammer
The intake arrived at the shop yesterday, and I'm taking the digital camera up there this week to take some pictures. Gotta get some shots of the T1's as well.
[Modified by Joe90, 5:59 PM 2/11/2004]
[Modified by Joe90, 9:26 AM 2/13/2004]
I started a thread in the motor section a little while back about the engine...
Rocket Block 4.125" bore
Crower Billet road-race crank 4" stroke
Crower Billet rods
JE forged blower pistons
Brodix T1 M2 227cc heads, flowed @ 321 CFM
Jesel 1.7/1.6 split ratio shaft rockers
C/R 13.5:1
Dry-sump oiling system
Victor intake w/FI built by Wilson Manifolds (just like Ski's, but these guys CNC the entire thing once the bungs are welded in and flow-match the runners)
McLeod Street-Twin clutch w/Aluminium flywheel
Cam is custom grind...I'll have the specs later this week. It has .760" lift
1000 CFM monoblade throttlebody
The engine builder has already done this motor (twice now) and is generating 720-735 FWHP from them, but they were built with the older T1 M2's. This new CNC program flows something like 15-20 CFM more air.
I'll need to get the drivetrain behind it beefed before it goes into the car or I'll be hearing expensive noises when I drop the hammer
The intake arrived at the shop yesterday, and I'm taking the digital camera up there this week to take some pictures. Gotta get some shots of the T1's as well.
[Modified by Joe90, 5:59 PM 2/11/2004]
[Modified by Joe90, 9:26 AM 2/13/2004]
