1000ish whp build???

[Chrispy]

Nice! I didn't realize that clutch was so strong. I had no issues with the clutch in my V Wagon but didn't really hammer that car on the line. (1.8 sixty)

[CanadianZL1#992]

Originally Posted by Chrispy

Nice! I didn't realize that clutch was so strong. I had no issues with the clutch in my V Wagon but didn't really hammer that car on the line. (1.8 sixty)

I did upgrade to a McLeod RXT this winter while my engine was out. Everything has it's limits and the engine was out already. My wife's car is going in when I get mine back. We are doing upper pulley on hers and a race gas tune. That should get her into the high 10's. Right now she is running a 23% lower and stock upper (10 psi boost). She'll get my old ported blower snout with 2.55 upper and 18% lower. Should raise boost couple of pounds. If you search stock clutch in the drivetrain section I have a thread with some pictures of the stock clutch when they pulled the engine.

[ZL1Kid_AL]

Thanks for all the input guys.
How much better is a tvs2300 compared to the stock 1.9 eaton. Say on 12lbs of boost with same supporting mods
I know the tvs2300 is twin intercooled but besides that how much power can I expect from this upgrade.. Max boost levels this blower can handle?

[CanadianZL1#992]

Originally Posted by ZL1Kid_AL

Thanks for all the input guys.
How much better is a tvs2300 compared to the stock 1.9 eaton. Say on 12lbs of boost with same supporting mods
I know the tvs2300 is twin intercooled but besides that how much power can I expect from this upgrade.. Max boost levels this blower can handle?

I've seen some guys on here pulling 17 psi with bolt ons. Add a cam ( depending on which one) ported heads and headers running 13 to 15 but maxed on blower speed. The faster you spin the blower the more cooling you need for IAT's for it to be effective. 12 psi boost is 12 psi on both blowers. You'll turn the 2.3 slower to produce the same boost and less heat. But won't gain much more power unless you had a problem with IAT heat before. The 2.3 is beneficial to me because I want to run higher boost levels. I was maxed out with the 1.9, it was turning in the high 23000 range to make 13.5 psi with my cam/head/header combo. I increased displacement to 396 and added a more aggressive cam with more overlap (= boost bleed off ) and am still shooting for 16 to 17 psi pulley combo

[Chrispy]

There's a big efficiency difference between the two blowers and the intercooler design is much better on the heartbeat than our stock blower.

[CanadianZL1#992]

Originally Posted by Chrispy

There's a big efficiency difference between the two blowers and the intercooler design is much better on the heartbeat than our stock blower.

The 1.9 is a very efficient blower, yes the heartbeat has a superior intercooler design. The big efficiency difference shows itself at elevated boost levels. The heartbeat is what I installed on my car this winter. My wife's car will keep the 1.9. I don't want her getting to close.

[Chrispy]

Originally Posted by CanadianZL1#992

The 1.9 is a very efficient blower, yes the heartbeat has a superior intercooler design. The big efficiency difference shows itself at elevated boost levels. The heartbeat is what I installed on my car this winter. My wife's car will keep the 1.9. I don't want her getting to close.

Sorry I meant intercooler efficiency

LOL at the wife comment

[CanadianZL1#992]

Originally Posted by Chrispy

Sorry I meant intercooler efficiency

LOL at the wife comment

No worries Chris. IMHO if I was satisfied with 630 to 650 rwhp the 1.9 would have suited me just fine with the HXer upgrade and resevoir. I have. I don't think I would have spent the money but in my quest for a 10.0 there was no way around it. Lol. There's a certain white shelby at our track I have a bullseye on.

[jessrayo]

I have had 3 superchargers on my ZL1. I think the Heartbeat 2.3 is the best blower you can run. I have not tried a whipple buy my builder has installed a lot of whipples and he put a heartbeat on his car. Now after saying the heatbeat is the best blower, once again I'm going to say that first hand I have seen that you can struggle with fine tuning everything on a blower car (I did) and then the turbo system will just plain blow it away with peak power and speed potential. It will however take some tuning/learning to make the turbo car run the 1/4 because the power band is so much more restricted and in the case of my car, very difficult to modulate in a controllable fashion.

Lance has had really good luck with his stock clutch. I switched the rear in my car to 3.23 for the land speed events and then I had to really drag the clutch to get it to launch without bogging the motor. This just destroyed clutches. I'm on my 4th clutch right now.... It was a lot easier to drag race the manual car with the 3.73 rear.

[CanadianZL1#992]

Originally Posted by jessrayo

I have had 3 superchargers on my ZL1. I think the Heartbeat 2.3 is the best blower you can run. I have not tried a whipple buy my builder has installed a lot of whipples and he put a heartbeat on his car. Now after saying the heatbeat is the best blower, once again I'm going to say that first hand I have seen that you can struggle with fine tuning everything on a blower car (I did) and then the turbo system will just plain blow it away with peak power and speed potential. It will however take some tuning/learning to make the turbo car run the 1/4 because the power band is so much more restricted and in the case of my car, very difficult to modulate in a controllable fashion.

Lance has had really good luck with his stock clutch. I switched the rear in my car to 3.23 for the land speed events and then I had to really drag the clutch to get it to launch without bogging the motor. This just destroyed clutches. I'm on my 4th clutch right now.... It was a lot easier to drag race the manual car with the 3.73 rear.

I'm finding out what you are saying about tuning and such Jess, it seems like once you reach a certain power level every little thing you change seems to affect 3 other things. The tuning on my new build is on hold now while I wait for a squash fuel system to be installed.

[jessrayo]

Originally Posted by CanadianZL1#992

I'm finding out what you are saying about tuning and such Jess, it seems like once you reach a certain power level every little thing you change seems to affect 3 other things. The tuning on my new build is on hold now while I wait for a squash fuel system to be installed.

It is really hard to make a car do everything well.... if you change something like rear gear ratio for one event it can totally trash your time at a different venue.... I don't think my car will ever be "finished"....lol.

[mylftft]

Hey guys don't forget about my car! I know I haven't been on here much lately.

Standing mile 201.9. Which is still a ZL1 record.
Standing 1/2 mile 173.6. Which is still a ZL1 record.
1/4 mile is 9.91 @ 147. Which isn't a record so I don't care!

I don't think you can argue with my all around results, yes it's a twin turbo car but everything else that came on my car from the factory is still on the car & works perfect, show car looks under the hood also!

[jessrayo]

Originally Posted by xdjxjj

Not that difficult, ctsv here we are using the factory blower, built engine, etc. with a fairly small shot of nitrous achieve 1000whp+ all day long.

It depends on how competitive you want to be. Out of probably 40 built CTS-V's that have showed up at the Texas mile only 2 V's have ever gone over 200mph. And to be honest, the V is not close to a power upgraded ZL1 road racing unless you replace/update all of the cooling systems and either do some suspension work or find a way to shed about 600 pounds...stock ZL1 chassis and cooling systems make a much better road race platform. The V is a good car but from a truly all around racing platform...there are better choices.

[jessrayo]

Originally Posted by mylftft

Hey guys don't forget about my car! I know I haven't been on here much lately.

Standing mile 201.9. Which is still a ZL1 record.
Standing 1/2 mile 173.6. Which is still a ZL1 record.
1/4 mile is 9.91 @ 147. Which isn't a record so I don't care!

I don't think you can argue with my all around results, yes it's a twin turbo car but everything else that came on my car from the factory is still on the car & works perfect, show car looks under the hood also!

Hey Josh...I haven't forgot about your records... If I wasn't so concerned about running the road course fast I think I would have beat those by now..... but they will probably stand longer, I don't think my car will be running by the March Texas mile event and I don't know of anyone else building a land speed ZL1.