Ls2 street cam recommendations
05-21-2020, 07:50 AM
#1
On The Tree
Thread Starter
Ls2 street cam recommendations In a perfect world, I would lose 0 torque anywhere.....
I'd like to retain torque at 2k rpms and begin building at 2500. I rarely rev past 5000.....
One vendor has recommended a 225/238 .612 .585 113+3. That's a little bigger than I expected.....
I'd like a little sound and emissions is no concern.
M6 car.
Thoughts?
I'd like to retain torque at 2k rpms and begin building at 2500. I rarely rev past 5000.....
One vendor has recommended a 225/238 .612 .585 113+3. That's a little bigger than I expected.....
I'd like a little sound and emissions is no concern.
M6 car.
Thoughts?
05-21-2020, 08:55 AM
#4
On The Tree
Thread Starter
I'm beginning to think that a mildy aggressive truck cam is what I want.....
Honestly, I'm fine with the top end hp. I just want more bottom and more torque at the bottom of a shift.
Honestly, I'm fine with the top end hp. I just want more bottom and more torque at the bottom of a shift.
05-21-2020, 09:02 AM
#6
On The Tree
Thread Starter
Acceleration goals? I want more acceleration lower in the rpm range, without putting my foot to the floor.
I have no et in mind or a certain G force.
But I'm used to having a supercharged 383 and driving diesels. A long ways away from the ls2, I just want a bit more bottom end tq.
I have no et in mind or a certain G force.
But I'm used to having a supercharged 383 and driving diesels. A long ways away from the ls2, I just want a bit more bottom end tq.
05-21-2020, 09:14 AM
#7
10 Second Club
iTrader: (8)
Yea acceleration goals. Because in the end that's what you're looking for.
The best way to increase tq to the ground is gear.
The best way to increase a engines low speed responsivness is to put light clutch in it....any speed really.
Combine those 2 and your looking at a yuge increase in low engine speed acceleration. Nothing a cam will match.
Of course that's for na purposes.
The best way to increase tq to the ground is gear.
The best way to increase a engines low speed responsivness is to put light clutch in it....any speed really.
Combine those 2 and your looking at a yuge increase in low engine speed acceleration. Nothing a cam will match.
Of course that's for na purposes.
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05-21-2020, 09:32 AM
#9
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iTrader: (8)
Dual mass clutch sucks for acceleration.
All this revolves are acceleration goals. What is the vehicle? If it's a heavy car then more than 3.73 gears could be helpful....but that dual mass clutch has to go or nothing will really help it.
All this revolves are acceleration goals. What is the vehicle? If it's a heavy car then more than 3.73 gears could be helpful....but that dual mass clutch has to go or nothing will really help it.
05-21-2020, 11:45 AM
#11
05-21-2020, 12:01 PM
#12
On The Tree
Thread Starter
So how would the above mentioned cam affect the power from idle-1500-5000 rpms?
How would it compare to a truck cam of roughly .600 224/228 on a 110 lsa?
I always thought a narrower lsa improved low end tq but made the idle rougher?
How would it compare to a truck cam of roughly .600 224/228 on a 110 lsa?
I always thought a narrower lsa improved low end tq but made the idle rougher?
05-21-2020, 06:09 PM
#14
10 Second Club
iTrader: (8)
Like i said....the best thing ti do is figure out your acceleration goals. No cam is gonna make a significant difference from idle -3k rpm in tq vs what you have.
But there are things you can do to improve acceleration. Which is what you're trying to do by improving tq.....that's what tq does. It accelerates you. And as ls2 already has good low end.
Another thing to look at is your tune. There could be tm in it and pedlays. Wouldn't matter how much tq you tried to add if that's in play.
What are your mods right now?
But there are things you can do to improve acceleration. Which is what you're trying to do by improving tq.....that's what tq does. It accelerates you. And as ls2 already has good low end.
Another thing to look at is your tune. There could be tm in it and pedlays. Wouldn't matter how much tq you tried to add if that's in play.
What are your mods right now?
05-21-2020, 09:22 PM
#15
Texas Speed Stage 2 Truck High Lift (212/218 .600/.600) ordered with a 111 LSA. Should get you the power range you're looking for plus an aggressive idle.
Also, if you don't already have long tube headers and they're available, get them. 1 5/8 to 1 3/4 primaries max with 3" collectors. This will also improve low-end torque (as well as everywhere else).
Also, if you don't already have long tube headers and they're available, get them. 1 5/8 to 1 3/4 primaries max with 3" collectors. This will also improve low-end torque (as well as everywhere else).
Last edited by 68Formula; 05-21-2020 at 09:35 PM.
05-22-2020, 05:11 AM
#16
On The Tree
Thread Starter
The car is all stock. Well it does have a cai....... 1 3/4 headers are on their way.
I'm sure it does have some sort of tq management or delay. I have efi live but havnt hooked into it yet. I figured there must not be much in a manual car.
And yes, cam change can build more torque than stock below 3000 rpms. Factory has to worry about emissions......
I'm sure it does have some sort of tq management or delay. I have efi live but havnt hooked into it yet. I figured there must not be much in a manual car.
And yes, cam change can build more torque than stock below 3000 rpms. Factory has to worry about emissions......
05-22-2020, 07:25 AM
#17
On The Tree
Thread Starter
So uh.....I found a little magic button that I didnt know about. Put it in "comp" mode and tq went way up, also picked 2 mpg to 32-33 now. It has plenty of low end tq now.....
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
05-22-2020, 02:11 PM
#18
So uh.....I found a little magic button that I didnt know about. Put it in "comp" mode and tq went way up, also picked 2 mpg to 32-33 now. It has plenty of low end tq now.....
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
05-22-2020, 09:01 PM
#19
10 Second Club
iTrader: (8)
So uh.....I found a little magic button that I didnt know about. Put it in "comp" mode and tq went way up, also picked 2 mpg to 32-33 now. It has plenty of low end tq now.....
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
Nonetheless, I'd still like more power in the 2500-4500 range if it's available. Surely a truck cam that tap and btr says increases tq and stock tq converter is fine must pick up under 3k rpms.
I'm not sure why one would recommend an ls3 cam for an ls2 with so much exhaust duration. I know the intake side of the ls3 heads flow much better than the exhaust side but with the ls2, I dont think the ratio is as bad.
What are you trying to accomplish here? Are you towing with it?
If your running it hard then you should choose the appropriate gear and not be at 3k rpm and wot.
Again....a light clutch will do more for low speed response than any cam. But you should first look into a dyno tune before anything else. Then you will know where it's at and have a good idea of where it should be by comparing other peoples dynos. Maybe do a tune up to it first.
05-22-2020, 11:22 PM
#20
Well there ya go....some new found power. So just how often are you at wot at 3k rpm?
What are you trying to accomplish here? Are you towing with it?
If your running it hard then you should choose the appropriate gear and not be at 3k rpm and wot.
Again....a light clutch will do more for low speed response than any cam. But you should first look into a dyno tune before anything else. Then you will know where it's at and have a good idea of where it should be by comparing other peoples dynos. Maybe do a tune up to it first.
What are you trying to accomplish here? Are you towing with it?
If your running it hard then you should choose the appropriate gear and not be at 3k rpm and wot.
Again....a light clutch will do more for low speed response than any cam. But you should first look into a dyno tune before anything else. Then you will know where it's at and have a good idea of where it should be by comparing other peoples dynos. Maybe do a tune up to it first.