Vortec350ss 2005 Sierra Denali - Forged 370 and cog driven TVS2300
Dec 7, 2016 | 02:23 PM
#1011
Thats because the big whipples are hard to fit in a truck without major modification. I think a couple guys have used the 3.4... but i have never heard anything about it. The 4.0 just taked too much work to make it fit.
The new 4.5 on the other hand... that bad boy could work. It's made for the LS platform with a front inlet. We will see.
The new 4.5 on the other hand... that bad boy could work. It's made for the LS platform with a front inlet. We will see.
Dec 7, 2016 | 03:19 PM
#1012
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
Im not against cutting up my cowl if someone wants to buy my 2.3 whipple and fund the difference to the 4.0 whipple for me to put on a truck 
Rob, be different, do the big TVS. And I find it funny you have cog belts on the 2300 and you are worried about procharger BOV noises
Rob, be different, do the big TVS. And I find it funny you have cog belts on the 2300 and you are worried about procharger BOV noises
Dec 7, 2016 | 06:41 PM
#1013
The procharger has a better chance of delivering what I want on the top end. This would also require a cam swap, and I would be torn between a factory 87mm truck intake and a holley high ram. Odds are I would go high ram. Max boost would probably be about 20psi. My fear here is to get a converter that makes this combo sing it would have to be pretty loose... in my truck at its current weight with AWD a loose converter blows. It would also very likely be wildly inefficient up top. Hell even my PT2800 drove loose with the 1900. Looser than most of you with a 245mm 3600 with a single cab 2wd to put it in perspective. Another downside is the noise.. that BOV with a big procharger is loud as hell. Obnoxious almost for a street vehicle. Thats what this is and what it always will be. Its a street truck I take to the track from time to time just to proove its fast lol.
With either combo shift points will likely be about 6800.
Not much to say beyond that... just figured I would open it up to discussion and see what people think.[/QUOTE]
Could always use the enclosed race valve. Those are much quieter. I think it would be pretty cool to see another procharger build personally.
With either combo shift points will likely be about 6800.
Not much to say beyond that... just figured I would open it up to discussion and see what people think.[/QUOTE]
Could always use the enclosed race valve. Those are much quieter. I think it would be pretty cool to see another procharger build personally.
Dec 7, 2016 | 06:54 PM
#1015
Thread Starter
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Joined: Feb 2006
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From: South Shore, MA
Im not against cutting up my cowl if someone wants to buy my 2.3 whipple and fund the difference to the 4.0 whipple for me to put on a truck
Rob, be different, do the big TVS. And I find it funny you have cog belts on the 2300 and you are worried about procharger BOV noises
Rob, be different, do the big TVS. And I find it funny you have cog belts on the 2300 and you are worried about procharger BOV noises
I do too. We will see. The softer bottom end of the prochargers that are capable of 1000 to the tires through my drivetrain has me a little nervous. I'll be tuning one this spring... so we'll see how it does. That will play a huge role in the decision.
Dec 7, 2016 | 07:53 PM
#1017
Staging Lane
Joined: Jul 2011
Posts: 88
Likes: 0
From: LAUREL
So in thinking through my next steps there are a few things on my mind. I want to stick to a blower. I like the instant power. Even a procharger is snappy compared to a turbo which almost gives up all 'snap' for what is almost endless roll on power.
First, obviously, its gotta be good for big power. Not like 90mm turbo power... but big power. Power that could take me mid 10's at 5300#. To that end I think I have narrowed it down to 2 options.
The TVS2650 or a procharger F1A-94.
The TVS delivers what I like in a power adder hands down. Question is can it deliver enough? The blower swap would involve another cam swap to allow the larger compressor to do its thing without choking. I would likely limit it to 18PSI or so seeing as these things don't love high boost. The cam would really let it breathe... so 18psi is a hell of a lot more air than most are flowing with a 370.
The procharger has a better chance of delivering what I want on the top end. This would also require a cam swap, and I would be torn between a factory 87mm truck intake and a holley high ram. Odds are I would go high ram. Max boost would probably be about 20psi. My fear here is to get a converter that makes this combo sing it would have to be pretty loose... in my truck at its current weight with AWD a loose converter blows. It would also very likely be wildly inefficient up top. Hell even my PT2800 drove loose with the 1900. Looser than most of you with a 245mm 3600 with a single cab 2wd to put it in perspective. Another downside is the noise.. that BOV with a big procharger is loud as hell. Obnoxious almost for a street vehicle. Thats what this is and what it always will be. Its a street truck I take to the track from time to time just to proove its fast lol.
With either combo shift points will likely be about 6800.
Not much to say beyond that... just figured I would open it up to discussion and see what people think.
First, obviously, its gotta be good for big power. Not like 90mm turbo power... but big power. Power that could take me mid 10's at 5300#. To that end I think I have narrowed it down to 2 options.
The TVS2650 or a procharger F1A-94.
The TVS delivers what I like in a power adder hands down. Question is can it deliver enough? The blower swap would involve another cam swap to allow the larger compressor to do its thing without choking. I would likely limit it to 18PSI or so seeing as these things don't love high boost. The cam would really let it breathe... so 18psi is a hell of a lot more air than most are flowing with a 370.
The procharger has a better chance of delivering what I want on the top end. This would also require a cam swap, and I would be torn between a factory 87mm truck intake and a holley high ram. Odds are I would go high ram. Max boost would probably be about 20psi. My fear here is to get a converter that makes this combo sing it would have to be pretty loose... in my truck at its current weight with AWD a loose converter blows. It would also very likely be wildly inefficient up top. Hell even my PT2800 drove loose with the 1900. Looser than most of you with a 245mm 3600 with a single cab 2wd to put it in perspective. Another downside is the noise.. that BOV with a big procharger is loud as hell. Obnoxious almost for a street vehicle. Thats what this is and what it always will be. Its a street truck I take to the track from time to time just to proove its fast lol.
With either combo shift points will likely be about 6800.
Not much to say beyond that... just figured I would open it up to discussion and see what people think.
Dec 7, 2016 | 10:28 PM
#1020
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From: South Shore, MA
I kinda like where your head is at.
You would.
Only way I'd go twin screw is if it was to something obnoxiously large. 4.0 or bigger. I'm not willing to cut my cowl just yet.
You would.
Only way I'd go twin screw is if it was to something obnoxiously large. 4.0 or bigger. I'm not willing to cut my cowl just yet.