LT1 and N20
Thread Starter
Teching In
Joined: Jul 2005
Posts: 7
Likes: 0
From: Tennessee
LT1 and N20 I got a 92 corvette with the following done to it....
383 Stroker 9000 miles on it.
9.5-1 compression
Forged Scat Crank
Forged H-Beam Rods
Forged JE/SRP pistons
ZZ409 Cam from TPIS (Adv. duration 287/287, duration @.050 226/226, Lift .520/.520. 112 LSA)
1.6 GM Rockers
TPIS Springs to match cam
52 MM T/B from TPIS
Ceramic Coated Headers from TPIS
FMS 30# Injectors
Port Matched intake to heads
Stage II Heads from Competition Machine in Plano TX
MSD Ignition
Cold Air Intake
New Opti Spark
Taylor 8mm Race Wires and retainers
New GM Balancer
TPIS Custom Chip
Ed Wright Chip
Tranny 800 miles replaced 02-05
700R4 Raptor Transmission from PATC
2600 Converter from PATC 9.5" w/12" lockup
3" Custom Exhaust with cutouts for cats
3.73 Rear Gears
I'm thinking of throwing a shot on it and was wondering how big i can go with it. (Fuel system will be upgraded before i shoot). Searching forums has led me to believe i should go with a wet kit.
383 Stroker 9000 miles on it.
9.5-1 compression
Forged Scat Crank
Forged H-Beam Rods
Forged JE/SRP pistons
ZZ409 Cam from TPIS (Adv. duration 287/287, duration @.050 226/226, Lift .520/.520. 112 LSA)
1.6 GM Rockers
TPIS Springs to match cam
52 MM T/B from TPIS
Ceramic Coated Headers from TPIS
FMS 30# Injectors
Port Matched intake to heads
Stage II Heads from Competition Machine in Plano TX
MSD Ignition
Cold Air Intake
New Opti Spark
Taylor 8mm Race Wires and retainers
New GM Balancer
TPIS Custom Chip
Ed Wright Chip
Tranny 800 miles replaced 02-05
700R4 Raptor Transmission from PATC
2600 Converter from PATC 9.5" w/12" lockup
3" Custom Exhaust with cutouts for cats
3.73 Rear Gears
I'm thinking of throwing a shot on it and was wondering how big i can go with it. (Fuel system will be upgraded before i shoot). Searching forums has led me to believe i should go with a wet kit.
Why so low on the compression, stock was well over 10:1? Were all the forged parts prep for boost? The forged parts should handle boost very well provided you have all the safeties, window switch WOT switch FP safety etc.
The single pattern cam is not ideal for an LT1 much less one on spray, these things are weak on the exhaust side as compared to the intake so some extra duration is almost always used to account for that.
Best of luck with the PATC but I bet as soon as you start spraying her you are tranny shopping again, some guys on the Impala board tried them and one guy with a HOT cammed 350 went through several some in under 1000miles. The dual size TC was only a good idea when lockup materials were less than what is available today with a GOOD TC you can lockup a single 9.5" at WOT no problem.
Sorry to say it but you found the forums thousands of dollars too late.
The single pattern cam is not ideal for an LT1 much less one on spray, these things are weak on the exhaust side as compared to the intake so some extra duration is almost always used to account for that.
Best of luck with the PATC but I bet as soon as you start spraying her you are tranny shopping again, some guys on the Impala board tried them and one guy with a HOT cammed 350 went through several some in under 1000miles. The dual size TC was only a good idea when lockup materials were less than what is available today with a GOOD TC you can lockup a single 9.5" at WOT no problem.
Sorry to say it but you found the forums thousands of dollars too late.
Thread Starter
Teching In
Joined: Jul 2005
Posts: 7
Likes: 0
From: Tennessee
Originally Posted by 96capricemgr
Why so low on the compression, stock was well over 10:1? Were all the forged parts prep for boost? The forged parts should handle boost very well provided you have all the safeties, window switch WOT switch FP safety etc.
The single pattern cam is not ideal for an LT1 much less one on spray, these things are weak on the exhaust side as compared to the intake so some extra duration is almost always used to account for that.
Best of luck with the PATC but I bet as soon as you start spraying her you are tranny shopping again, some guys on the Impala board tried them and one guy with a HOT cammed 350 went through several some in under 1000miles. The dual size TC was only a good idea when lockup materials were less than what is available today with a GOOD TC you can lockup a single 9.5" at WOT no problem.
Sorry to say it but you found the forums thousands of dollars too late.
The single pattern cam is not ideal for an LT1 much less one on spray, these things are weak on the exhaust side as compared to the intake so some extra duration is almost always used to account for that.
Best of luck with the PATC but I bet as soon as you start spraying her you are tranny shopping again, some guys on the Impala board tried them and one guy with a HOT cammed 350 went through several some in under 1000miles. The dual size TC was only a good idea when lockup materials were less than what is available today with a GOOD TC you can lockup a single 9.5" at WOT no problem.
Sorry to say it but you found the forums thousands of dollars too late.
Teching In
Joined: Apr 2005
Posts: 42
Likes: 1
From: north park, il
Originally Posted by KidInTheHall
I bought the car this way, it already had all this done to it. It was built to take a shot of nitrous.
Why would a built, lower compression motor be used for nitrous? I think you mean it supposed to be used for boost of some sort...perhaps a nice lt1 s/c kit? Spray is quite a bit more suitable for a higher compression motor...say 10.5:1. Thread Starter
Teching In
Joined: Jul 2005
Posts: 7
Likes: 0
From: Tennessee
Originally Posted by AKain
Why would a built, lower compression motor be used for nitrous? I think you mean it supposed to be used for boost of some sort...perhaps a nice lt1 s/c kit? Spray is quite a bit more suitable for a higher compression motor...say 10.5:1.
