What will this combo make?
Thread Starter
Pro
Joined: May 2000
Posts: 529
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From: Bellevue NE
What will this combo make?
I've been corresponding with Jon (FICINJECTORS) about an injector recommendation for my current engine build. He asked what HP I thought my combo would make and actually I wasn't sure. Based on the details below what do you all think?
396 Stroker
LT1 F-Body block modified for splayed caps
SRP 4.030" (-14cc)forged pistons
Eagle H-Beam 5.850" stroker rods
Callies 3.875" Forged crank
Reworked TPIS/AFR heads; 2.05/1.60 Valves Intake port opened to at least 200cc's approximately 58cc chambers looking at about 11:1 comp ratio depending head-gasket used and chamber size after all port work done
Custom Ground Cam from E-Port Works:
Duration @ .050 224 intake and exhaust
Lift with 1.6 rockers - intake .5744 exhaust .5664
Cloyes dual roller chain (electric W/P)
Adjustable FPR
MSD Opti-spark
ported LPE LT1 intake
58mm AZS&M Throttle Body
Vette Tech Tri-Y headers, dual random cats coupled to Corsa exhaust
Car is a 92 6-speed coupe, Dana 44 w/3.45 gears, modified F-body single mass flywheel
PCM for less intial tune
396 Stroker
LT1 F-Body block modified for splayed caps
SRP 4.030" (-14cc)forged pistons
Eagle H-Beam 5.850" stroker rods
Callies 3.875" Forged crank
Reworked TPIS/AFR heads; 2.05/1.60 Valves Intake port opened to at least 200cc's approximately 58cc chambers looking at about 11:1 comp ratio depending head-gasket used and chamber size after all port work done
Custom Ground Cam from E-Port Works:
Duration @ .050 224 intake and exhaust
Lift with 1.6 rockers - intake .5744 exhaust .5664
Cloyes dual roller chain (electric W/P)
Adjustable FPR
MSD Opti-spark
ported LPE LT1 intake
58mm AZS&M Throttle Body
Vette Tech Tri-Y headers, dual random cats coupled to Corsa exhaust
Car is a 92 6-speed coupe, Dana 44 w/3.45 gears, modified F-body single mass flywheel
PCM for less intial tune
Last edited by Jeff M; May 3, 2008 at 08:22 AM.
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Thread Starter
Pro
Joined: May 2000
Posts: 529
Likes: 0
From: Bellevue NE
Your right it is on the mild side for this set-up. I traded many an e-mail with Lloyd from Elliot Port works. We finally decided on this cam; 1) I have to be able to pass emissions, and 2) I'm willing to sacrifice some top end HP for good street manners. I'm a torque guy, I want something I can live with on the street. Jon suggested 36lb injectors guessing at about a 450-460HP motor. I was thinking 30lb would've been over-kill. Thanks for your inputs though, given me some things to chew on.
Supporting Vendor
Joined: Mar 2008
Posts: 1,762
Likes: 14
From: Cumming Ga
Your right it is on the mild side for this set-up. I traded many an e-mail with Lloyd from Elliot Port works. We finally decided on this cam; 1) I have to be able to pass emissions, and 2) I'm willing to sacrifice some top end HP for good street manners. I'm a torque guy, I want something I can live with on the street. Jon suggested 36lb injectors guessing at about a 450-460HP motor. I was thinking 30lb would've been over-kill. Thanks for your inputs though, given me some things to chew on.
450hp x.50 (bsfc) =225 / 8x.80 (DS) =6.4
225/6.4 =35.16 lb/hr I guessed on your HP by your set up. if you find the injectors are a little short jump the pressure to 50 and they will flow 37.98/ alowing you to have more HP. a 30lb injector would work but it would have to run at 95%DS.
Last edited by FICINJECTORS; May 3, 2008 at 07:16 PM.
Safety Car
Joined: Dec 2002
Posts: 3,655
Likes: 24
From: Charleston SC
Your right it is on the mild side for this set-up. I traded many an e-mail with Lloyd from Elliot Port works. We finally decided on this cam; 1) I have to be able to pass emissions, and 2) I'm willing to sacrifice some top end HP for good street manners. I'm a torque guy, I want something I can live with on the street. Jon suggested 36lb injectors guessing at about a 450-460HP motor. I was thinking 30lb would've been over-kill. Thanks for your inputs though, given me some things to chew on.
I think you will find you are going to be over 420RWHP/420RWTQ. Take a look at my set up for a reference. I think 36's will be perfect for you. I have them and max out at 78% DC so even if you make a few more HP you will probably end up between 80-85% DC, just about perfect.
Here is my dyno sheet from my first tune. I think I still have 5-10RWHP left but like the way the car runs the way it is tuned now
