TVS 2300 on built LS3 with stroker crank - Any ideas on how much boost we'll see?

[Exotic Performance Plus]

Originally Posted by backchannel

Did you ever calculate rotor rpm?

No we haven't. LeftCoast 32 sent us to overdrive kit that they use, and we installed it as is. Magnacharger assured us we could make big power with this blower, and we're pleased with the current performance, if we could just keep the water pump pulley from breaking apart we'd be set.

[zippy]

If you have one of the broken pumps around it might be worth trying to find a 97' era Corvette pump and see if you can find a way to swap the pulley shaft and swich over to a bolt on pulley. Using the housing from the truck would make everything else work, but if you can make the Vette' pump shaft and bolt on pulley work it may live longer.

[DanO]

Originally Posted by Exotic Performance Plus

Video of the Hummer at the dragstrip.
it was very hot, the DA was 3850 plus the dragstrip was greasy, but the Hummer still did a 2.08 60 ft time and a 14.23 in the 1/4 mile. This was after driving the Hummer 75 miles to the track, so the engine was good and hot. With cooler temperatures this Hummer should get into the twelves in the 1/4 mile. Bob

What is the weight of that truck? A basic SC kit bolted to a 5.3 on a pickup runs low 14's

I hope you see 11's out of this package, there should be no reason not to..

[Exotic Performance Plus]

Originally Posted by DanO

What is the weight of that truck? A basic SC kit bolted to a 5.3 on a pickup runs low 14's

I hope you see 11's out of this package, there should be no reason not to..

The truck weighs about 7000 lbs, it's heavy. Bob

[BLNLS1/RX7]

Bob.How come you have not just gone with an electric waterpump?

[Exotic Performance Plus]

Originally Posted by BLNLS1/RX7

Bob.How come you have not just gone with an electric waterpump?

The belt still runs on the electric pump, and we really feel that having to drive the water pump is not what is causing the pulley to come loose on the shaft, but it is the belt tension that is causing the problem. Thanks. Bob

[supersub]

Originally Posted by Exotic Performance Plus

We're at 585 rwhp on our very conservative Mustang Chassis Dyno and this Hummer has 35" tall tires. Bob

And I found one as well....

Originally Posted by Exotic Performance Plus

I have absolutely no idea at what you're tying to get at. We are trying to make 14 psi with our combination... Bob

It can be done.

You need to expand on your thought's.

This is where i got with mine.

714.0 RWHP @ 5967 RPM 700.8 RWTQ 4096 RPM

14 PSI SOLID!

LSX # 416 427ci (7.0) TVS 2300

Thru A 4L80, 2500 HD Transfercase,14 bolt rear on 22" BFG's. Just the way I roll.

On a Mustang dyno.

Video:

graph was scanned in by a fellow member.

yes i have witnesses

If you wish to Contact me I will be glad to offer all the help i can.

Ray

[Exotic Performance Plus]

Originally Posted by supersub

And I found one as well....



It can be done.

You need to expand on your thought's.

This is where i got with mine.

714.0 RWHP @ 5967 RPM 700.8 RWTQ 4096 RPM

14 PSI SOLID!

LSX # 416 427ci (7.0) TVS 2300

Thru A 4L80, 2500 HD Transfercase,14 bolt rear on 22" BFG's. Just the way I roll.

On a Mustang dyno.

Video:

graph was scanned in by a fellow member.

yes i have witnesses

If you wish to Contact me I will be glad to offer all the help i can.

Ray

Looks good Ray, I'll give you a call back this week. We were really busy with a GTO we put together for the Shootout, and then I had to catch up on business once I got back from the Shootout.
We consistently make over 800 rwhp with pretty much the same engine combination we have in the Hummer in other vehicles. Same cam, etc.


LS2/402 with AFR 225 heads, EPP blower cam, ProCharger F-1A at 12.5 psi of boost, in CTS-V


LS2/402 with Patriot Stage 2 LQ9 heads (customers decision to stay with his old heads) EPP blower cam, ProCharger F-1C at 15.9 psi of boost, in 2004 Corvette.




At this point, we just want to get the Hummer to be dependable without yanking off the water pump pulley. It has plenty of power to blow all four tires off of it from a standing start, not bad for a 7000 lb vehicle. Maybe the cats are hurting power, but we just want it to be dependable. We don't care if we have to drop the boost down to 10 psi to keep the pulley on it. We don't want to put a carbonite finish on the blower pulley, that may require a new belt every 300 miles. Belt alignment has been good, but we were having to run the belt much tighter than we even run the ProCharger belts to keep slippage down. It took to guys to wrestle the belt on half way, then we rotated the engine to get it all the way on. This was after using longer belts that would end up with slippage. This was after we tried Left Coast 32 overdrive kit too.
Max at Cartec is working on a Flip Drive design for us, but these designs don't happen overnight, and the customer just wants us to try to help him sell the Hummer. Like I said, I'll give you a call. Thanks! Bob

[Spoolin]

Kinda interesting to see the the Torque curves of the 2300 vs the Procharger. Both make good power that's for sure!

[Exotic Performance Plus]

Originally Posted by Spoolin

Kinda interesting to see the the Torque curves of the 2300 vs the Procharger. Both make good power that's for sure!

Yes, I agree. The Magnacharger works well to get this toad moving, maybe it needs one of each on it... lol Bob

[Spoolin]

Originally Posted by Exotic Performance Plus

Yes, I agree. The Magnacharger works well to get this toad moving, maybe it needs one of each on it... lol Bob

and you think you have belt issues NOW!!!

[Exotic Performance Plus]

Originally Posted by Spoolin

and you think you have belt issues NOW!!!

No doubt! lol Bob