van turbo???
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Freshman User
Joined: Nov 2009
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From: where the Navy tells me
van turbo???
Why do people put a van turbo on there 7.3L ?? I am just wondering if it really helps I have the big ball buster turbo. But I would still like to know why people do it.
Postmaster
Joined: Sep 2007
Posts: 4,005
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From: Mcafee, NJ
i think the biggest advantage is the larger than stock compressor and exhaust housings
non wastegated is nice but u can tighten the rod up so its not an issue
i mean even the gtp38r is wastegated
non wastegated is nice but u can tighten the rod up so its not an issue
i mean even the gtp38r is wastegated
Posting Guru
Joined: Oct 2007
Posts: 2,225
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From: Farmington, Minnesota
Van turbo flows more air than the stocker. The van is non intercooled and uses a larger turbo to reduce egts, so it does the same for the truck especially when you are pushing more fuel with tuning and injectors.
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
I don't think it flows more air than stock -- it just lets you use the upper end of your power band without EGTs skyrocketing because the little .84 stock exh housing becomes a restriction on the top end. I have mine configured with the stock wheel & ported ATS compressor housing. The jury is out about how it flows compared to stock, but as hard as I'm pushing it (35ish psi), there is no trace of surge, and my exhaust back pressure is about 1:1 with boost which is where you want to be.
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Postmaster
Joined: Jul 2006
Posts: 3,754
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From: Indianapolis
Hey Joe what do you think you can get with Casserly stage 2's and a van turbo with supporting tunes/ About 400 rwhp?
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Laughing Gas
Joined: Jan 2007
Posts: 870
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From: Carbondale, CO
[quote=rat49f6;8660831]i think the biggest advantage is the larger than stock compressor and exhaust housings
I'm also trying to learn this. Joe, is the ATS ported housing you have different than what would go on a stock turbo? Also is the exhaust A/R size standard on the vans?
I'm also trying to learn this. Joe, is the ATS ported housing you have different than what would go on a stock turbo? Also is the exhaust A/R size standard on the vans?
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
The compressor housings are EXACTLY the same on the vans & trucks. The ONLY difference is the exhaust housing & wheels. Vans have a 1.15 a/r non-wastegated housing and a slightly larger exhaust wheel. Stock turbine wheel has a 76.20mm inducer and a 67.73mm exducer (79 trim). Van turbine wheel has a 76.20mm inducer and a 69.84mm exducer (84 trim).
The van exhaust housing is HUGE compared to the truck.
Truck:
Van:
The van exhaust housing is HUGE compared to the truck.
Truck:
Van:
Postmaster
Joined: Jul 2006
Posts: 3,754
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From: Indianapolis
Those numbers are with my e99 turbo! I haven't dynoed this combo yet, but to be honest my injectors are running like crap, so even if I did dyno it now, it wouldn't show it's true potential. I gotta lead on a set of used Casserly stage 2's. I'd like your hybrids, but i think the 2's wil be plenty enough power till I get a backup truck LOL.
Postmaster
Joined: Sep 2007
Posts: 4,005
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From: Mcafee, NJ
Those numbers are with my e99 turbo! I haven't dynoed this combo yet, but to be honest my injectors are running like crap, so even if I did dyno it now, it wouldn't show it's true potential. I gotta lead on a set of used Casserly stage 2's. I'd like your hybrids, but i think the 2's wil be plenty enough power till I get a backup truck LOL.