96 corvette upgrades Help please!
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Hello, I want to know if this is good upgrades done on a 96 corvette and if it’s reliable for the engine.
ENGINE:
lt4 hot cam
1.6 roller rockers and comp cam chrome moly pushrod
52mm BBK throttle house
electric water pump
gm high performance cam chain kit (lt4)
adjustable fuel pressure regulator
smaller underdrive pulley
ported maf sensor
vortex rammer cold intake
big mouth on the intake
extra oil cooler for automatic transmission
new cooler
new ac cooler
new ignition cables
bigger spreaders 30 l/s
headers tpis long ceramic coated
lt4 knock module in the ecm
New gearing to 3.73 from 3.07
ENGINE:
lt4 hot cam
1.6 roller rockers and comp cam chrome moly pushrod
52mm BBK throttle house
electric water pump
gm high performance cam chain kit (lt4)
adjustable fuel pressure regulator
smaller underdrive pulley
ported maf sensor
vortex rammer cold intake
big mouth on the intake
extra oil cooler for automatic transmission
new cooler
new ac cooler
new ignition cables
bigger spreaders 30 l/s
headers tpis long ceramic coated
lt4 knock module in the ecm
New gearing to 3.73 from 3.07
Le Mans Master
Joined: Aug 2015
Posts: 6,113
Likes: 1,994
From: St. Charles MO
These are all things already done to this car that he is considering buying, not things he wants to do to it. I have no idea what the idea behind the LT4 knock module is. I've never heard of that "modification."
Thread Starter
Heel & Toe
Joined: Apr 2021
Posts: 23
Likes: 0
You help me with your answers thats enough 😀. I live in sweden the dealer want 23000 $, almost like a c5.
Thread Starter
Heel & Toe
Joined: Apr 2021
Posts: 23
Likes: 0
Thread Starter
Heel & Toe
Joined: Apr 2021
Posts: 23
Likes: 0
Melting Slicks
Joined: Jul 2005
Posts: 2,649
Likes: 863
Korvet69 - IMHO - the PCM NEEDS to be tuned (reprogramed) to work with the LT4 Hot cam. It would also need to be tuned to work with larger Injectors (I believe that's what your post referred to as spreaders). If the car idles reasonably, and accelerates well - all the way up to the upper RPM range - then the PCM WAS Reprogramed).
The factory LT4 was available only in 1996 and was rated 330 HP from the factory - but the LT4 only came with the manual gearbox - the auto gearbox cars got 300 HP LT1's.
Back in the day - GM said that an LT4 engine with the Hot Cam, Headers, and tuning could obtain 400 - 425 Crank HP. But the LT4 came with Better cylinder heads, and it looks like the car you're looking at has the LT1 heads that simply do not flow as well. I would think that 350 - 375 Crank HP is realistic for what you are looking at.
The biggest "issue" I see for you is that the LT1 / LT4 engines were not used in many cars - and it is difficult to find people over here that know how to work on them. I expect it will be a lot worse in Sweden. Just my opinion, but consider going for a C5 with either an LS1 or an LS6 (Z06 models). They are probable going to be easier to get serviced as they are more similar to what's sold today.
The factory LT4 was available only in 1996 and was rated 330 HP from the factory - but the LT4 only came with the manual gearbox - the auto gearbox cars got 300 HP LT1's.
Back in the day - GM said that an LT4 engine with the Hot Cam, Headers, and tuning could obtain 400 - 425 Crank HP. But the LT4 came with Better cylinder heads, and it looks like the car you're looking at has the LT1 heads that simply do not flow as well. I would think that 350 - 375 Crank HP is realistic for what you are looking at.
The biggest "issue" I see for you is that the LT1 / LT4 engines were not used in many cars - and it is difficult to find people over here that know how to work on them. I expect it will be a lot worse in Sweden. Just my opinion, but consider going for a C5 with either an LS1 or an LS6 (Z06 models). They are probable going to be easier to get serviced as they are more similar to what's sold today.
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
Thread Starter
Heel & Toe
Joined: Apr 2021
Posts: 23
Likes: 0
Korvet69 - IMHO - the PCM NEEDS to be tuned (reprogramed) to work with the LT4 Hot cam. It would also need to be tuned to work with larger Injectors (I believe that's what your post referred to as spreaders). If the car idles reasonably, and accelerates well - all the way up to the upper RPM range - then the PCM WAS Reprogramed).
The factory LT4 was available only in 1996 and was rated 330 HP from the factory - but the LT4 only came with the manual gearbox - the auto gearbox cars got 300 HP LT1's.
Back in the day - GM said that an LT4 engine with the Hot Cam, Headers, and tuning could obtain 400 - 425 Crank HP. But the LT4 came with Better cylinder heads, and it looks like the car you're looking at has the LT1 heads that simply do not flow as well. I would think that 350 - 375 Crank HP is realistic for what you are looking at.
The biggest "issue" I see for you is that the LT1 / LT4 engines were not used in many cars - and it is difficult to find people over here that know how to work on them. I expect it will be a lot worse in Sweden. Just my opinion, but consider going for a C5 with either an LS1 or an LS6 (Z06 models). They are probable going to be easier to get serviced as they are more similar to what's sold today.
The factory LT4 was available only in 1996 and was rated 330 HP from the factory - but the LT4 only came with the manual gearbox - the auto gearbox cars got 300 HP LT1's.
Back in the day - GM said that an LT4 engine with the Hot Cam, Headers, and tuning could obtain 400 - 425 Crank HP. But the LT4 came with Better cylinder heads, and it looks like the car you're looking at has the LT1 heads that simply do not flow as well. I would think that 350 - 375 Crank HP is realistic for what you are looking at.
The biggest "issue" I see for you is that the LT1 / LT4 engines were not used in many cars - and it is difficult to find people over here that know how to work on them. I expect it will be a lot worse in Sweden. Just my opinion, but consider going for a C5 with either an LS1 or an LS6 (Z06 models). They are probable going to be easier to get serviced as they are more similar to what's sold today.
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Thread Starter
Heel & Toe
Joined: Apr 2021
Posts: 23
Likes: 0
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
You have to either be BOTH able AND willing to DIY everything unless you have a few "someones" who want to fix it when you have an issue. I have run into that issue more than a time or two where the shop tells you they prefer not to work on it in not so many words. That or they charge exorbitant amounts so they are either covered well or you go somewhere else. I would line up who you can go to if you have problems, at least, until you are BOTH able AND willing to DIY