whipple supercharger

[nfamous209]

Originally Posted by CamaroSpike23

if it will bolt up to L92 heads, it will work on the LS3. LS1, LS2, LS6 s/c should all work on the LS3. cus all the LS3 really is, is an LS2 block bored out with L92 heads on it with a few extra modifications.

R u sure about this statement. u realize ls1,ls2,ls6 heads are different then the l92 heads. and the ls3 block is different then the ls2. ls2 blocks are great for increasing displacement. ls3 blocks have been having issues in increasing displacement. something about ls3 blocks are weaker then the ls2's. go to ls1tech and you'll see. there is a magnacharger kit that fits ls1,ls2,ls6 style heads. and magnacharger just made a new s/c for the ls3. so 2 different s/c intake manifolds. i dont think the ls3 kit is officially available yet.

[Robert91RS]

That's the first I have heard about the LS3 being weak. Infact my understanding was that they had imroved it in several ways over the LS2 block.

As for Spike's comment, I think he forgot to proof read because half of his statement is true and then he contradicts himself, so just a typo I'm sure. It's common knowledge that Greg Norris knows every thing.

[radz28]

+2 I haven't heard that either. I know the lower end has been strengthened as of late. If I'm not mistaken, both are siamesed. Maybe because the cylinder walls are thicker on the LS2 make it a little stronger but that arguement goes away after one starts boring. Could it be some of that AFM/VVT bosses in the lifter valley causing some weakening?

All I know is, is that LS3 heads flow way better than LS1/2/6 heads. I know you need different cam profiles to take advantage of them and don't really see why the Maggy' kit from the G8 GT wouldn't work. I believe the heads are at least the same style, so the supercharger lower manifold should bolt up.

[Robin Lawrence]

The heads on the LS3, L92 , LS9 and the LSA are all square port. The LS1, LS2, LS6 and the 4.8 and 5.3 are all Cathedral ports.
The manifolds are different.

I have a Harrop TVS 2300 for the LS3 headed engines. It is too much blower for a stock bottom end. In testing it made 728 foot pouds of torque at 3700 RPM. That was on a short pull to 4000 RPM. It was makng 543 Horsepower at 4000 RPM.

To be safe a decent set of rods and pistons are needed. The TVS 2300 can go north of 900 Horsepwer with the right package.

I wish I could put the one that I have on my new Camaro. GMPP wants my car to be a true "bolt on" car. Getting into the short block is a little more than the average guy is going to do with his new Camaro.

Robin

[Robert91RS]

Originally Posted by Robin Lawrence

The heads on the LS3, L92 , LS9 and the LSA are all square port. The LS1, LS2, LS6 and the 4.8 and 5.3 are all Cathedral ports.
The manifolds are different.

I have a Harrop TVS 2300 for the LS3 headed engines. It is too much blower for a stock bottom end. In testing it made 728 foot pouds of torque at 3700 RPM. That was on a short pull to 4000 RPM. It was makng 543 Horsepower at 4000 RPM.

To be safe a decent set of rods and pistons are needed. The TVS 2300 can go north of 900 Horsepwer with the right package.

I wish I could put the one that I have on my new Camaro. GMPP wants my car to be a true "bolt on" car. Getting into the short block is a little more than the average guy is going to do with his new Camaro.

Robin

mmmmmm......tvs 2300.....
What about the crank Robin, what is it good to?

[Shurenuff]

Will we have to replace the hood to fit some of these superchargers?

[Robert91RS]

Originally Posted by Shurenuff

Will we have to replace the hood to fit some of these superchargers?

Some of them I'm sure won't fit but several like the Maggy are very low profile and I would expect them to fit just fine.

[Andro]

Originally Posted by Robin Lawrence

The heads on the LS3, L92 , LS9 and the LSA are all square port. The LS1, LS2, LS6 and the 4.8 and 5.3 are all Cathedral ports.
The manifolds are different.

I have a Harrop TVS 2300 for the LS3 headed engines. It is too much blower for a stock bottom end. In testing it made 728 foot pouds of torque at 3700 RPM. That was on a short pull to 4000 RPM. It was makng 543 Horsepower at 4000 RPM.

To be safe a decent set of rods and pistons are needed. The TVS 2300 can go north of 900 Horsepwer with the right package.

I wish I could put the one that I have on my new Camaro. GMPP wants my car to be a true "bolt on" car. Getting into the short block is a little more than the average guy is going to do with his new Camaro.

Robin

DAM! 728 foot pounds at only 3700 RPM Thats sick!

[Robin Lawrence]

Originally Posted by Robert91RS

mmmmmm......tvs 2300.....
What about the crank Robin, what is it good to?

Weelllllll....... I have to say not to go over 600 but I have heard people over 750 on stock cranks

I would suggest a Lunati steel crank if you want to lean on it.


Robin

[PatrickfromMD]

Originally Posted by Robin Lawrence

The heads on the LS3, L92 , LS9 and the LSA are all square port. The LS1, LS2, LS6 and the 4.8 and 5.3 are all Cathedral ports.
The manifolds are different.

I have a Harrop TVS 2300 for the LS3 headed engines. It is too much blower for a stock bottom end. In testing it made 728 foot pouds of torque at 3700 RPM. That was on a short pull to 4000 RPM. It was makng 543 Horsepower at 4000 RPM.

To be safe a decent set of rods and pistons are needed. The TVS 2300 can go north of 900 Horsepwer with the right package.

I wish I could put the one that I have on my new Camaro. GMPP wants my car to be a true "bolt on" car. Getting into the short block is a little more than the average guy is going to do with his new Camaro.

Robin

Robin,

What do you say to a L99 with a TVS 1900 blower? Say 7psi, do you think tthe motor can handle it? Do you think the Auto Tranny can handle it?

[GTAHVIT]

Originally Posted by Robin Lawrence

The heads on the LS3, L92 , LS9 and the LSA are all square port. The LS1, LS2, LS6 and the 4.8 and 5.3 are all Cathedral ports.
The manifolds are different.

I have a Harrop TVS 2300 for the LS3 headed engines. It is too much blower for a stock bottom end. In testing it made 728 foot pouds of torque at 3700 RPM. That was on a short pull to 4000 RPM. It was makng 543 Horsepower at 4000 RPM.

To be safe a decent set of rods and pistons are needed. The TVS 2300 can go north of 900 Horsepwer with the right package.

I wish I could put the one that I have on my new Camaro. GMPP wants my car to be a true "bolt on" car. Getting into the short block is a little more than the average guy is going to do with his new Camaro.

Robin

So, with Stock bottom end on our LS3's and say a TVS 1900, on a bench dyno, how much boost and power do you think is reliable?

[Robin Lawrence]

First I don't know very much about that auto trans. It hasn't been around long enough to beat up on it and figure it out.

The TVS 1900 would be a much better choice for a stock LS3.

I have talked to the guys at Harrop as well as Eaton. The TVS 2300 is capable of moving enough air to support in excess of 900 horsepower at the crankshaft.
The TVS 1900 is capable of north of 700 and close to 800 in the right situation.
The LS3 is tough but it's going to live a short life if you spend a lot of time in those numbers. A quick hit every now and them maybe.

One of the reasons that the ZR1 hasent't been turned up is that it has to pass strict durability testing. Your LS3 isn't made to take that kind of power.

Again people will go that direction and some will get by. But IMO the TVS design superchargers move a lot of air. Your going to need to build a strong shortblock to hold the power.

Robin

[Silver Streak]

Originally Posted by Robin Lawrence

First I don't know very much about that auto trans. It hasn't been around long enough to beat up on it and figure it out.

The TVS 1900 would be a much better choice for a stock LS3.

I have talked to the guys at Harrop as well as Eaton. The TVS 2300 is capable of moving enough air to support in excess of 900 horsepower at the crankshaft.
The TVS 1900 is capable of north of 700 and close to 800 in the right situation.
The LS3 is tough but it's going to live a short life if you spend a lot of time in those numbers. A quick hit every now and them maybe.

One of the reasons that the ZR1 hasent't been turned up is that it has to pass strict durability testing. Your LS3 isn't made to take that kind of power.

Again people will go that direction and some will get by. But IMO the TVS design superchargers move a lot of air. Your going to need to build a strong shortblock to hold the power.

Robin

So is 600 hp a good figure for a stock block and still maintain good reliability?

[Robin Lawrence]

Originally Posted by Silver Streak

So is 600 hp a good figure for a stock block and still maintain good reliability?

Reliability goes out of the door once you start to add the stress to the engine. Everything is a compromise when in the performance world.

Would I do it? Hell yeah! Would I let my daughter do it to her daily driver....no I would not.

Any modifications are a risk. Some people are willing to take the risk involved and have the cash to make the repairs should they have a problem.

I cannot tell you that the LS3 will be reliable with supercharger making 600 Horsepower. I can only say there are people who have done it.

Sorry for the PC answer but this is a public forum.


Robin