A-TRIM upgrade to S-Trim?
12-28-2003, 12:36 AM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, LT1
Transmission: TKX, 4L60E
Axle/Gears: 3.42, 3.23
A-TRIM upgrade to S-Trim?
Anyone have any back-to-back testing results from going from an A-Trim to S-Trim (or other) ?
I'm curious what the differences (with same pully) are. Noticeable, huge, or nothing?
The folks at vortech are convinced i'll be happier with an S-trim, but I'd like to see timeslips, or dyno runs..
Thanks!
-- Joe
I'm curious what the differences (with same pully) are. Noticeable, huge, or nothing?
The folks at vortech are convinced i'll be happier with an S-trim, but I'd like to see timeslips, or dyno runs..
Thanks!
-- Joe
12-28-2003, 12:41 AM
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Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
no idea... but a import guy once told me he had to downgrade from R trim to S trim... because if he didnt, he would have too much power to drive on the street...
not real helpful info... but i got a chuckle out of it.
not real helpful info... but i got a chuckle out of it.
12-28-2003, 10:16 PM
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Car: 1991 Firebird Formula
Engine: 383 Supercharged and Intercooled
Transmission: 6-Speed
Axle/Gears: Stock 10 bolt 3.42
Yeah, I have done a while ago. Cost me $600 bucks.
With the A-trim I got about 7, maybe 8lbs of boost tops on my stock headed and cammed 305 using the stock 6rib SC belt. Now with the S-trim on my 383, with the same cam and an 8rib belt, I get 14-15lbs of boost.
The maximum boost on an A-trim is only 10lbs and is not very efficent at that level. The S-trim maximum is 20lbs and is alot more efficent (cooler) at 10lbs to 14lbs of boost. Its worth it.
I'm actually thinking of going to a T-trim next to get a few more lbs.
With the A-trim I got about 7, maybe 8lbs of boost tops on my stock headed and cammed 305 using the stock 6rib SC belt. Now with the S-trim on my 383, with the same cam and an 8rib belt, I get 14-15lbs of boost.
The maximum boost on an A-trim is only 10lbs and is not very efficent at that level. The S-trim maximum is 20lbs and is alot more efficent (cooler) at 10lbs to 14lbs of boost. Its worth it.
I'm actually thinking of going to a T-trim next to get a few more lbs.
01-03-2004, 10:53 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, LT1
Transmission: TKX, 4L60E
Axle/Gears: 3.42, 3.23
Hey,
No kidding huh? I got the 3.33 pully on there right now, and it gets very hot. At only 8psi.. So I can run lots more boos, and be cooler with the s-trim impeller? great.. I'll have to save up!
-- Joe
No kidding huh? I got the 3.33 pully on there right now, and it gets very hot. At only 8psi.. So I can run lots more boos, and be cooler with the s-trim impeller? great.. I'll have to save up!
-- Joe
01-04-2004, 09:31 PM
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Car: 1988 GTA
Engine: 5.7
Transmission: 700R4
Vortech has a really good trade in program. If our A-trim is in good shape, They will give up too $700 towards another head unit. This comes from vortech, I just talked to them. I've got the same issue. NEED MORE BOOST!!!
01-04-2004, 09:46 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, LT1
Transmission: TKX, 4L60E
Axle/Gears: 3.42, 3.23
Yeah but with the a-trim, they just upgrade it and send it back.. I think $500-$600.00 is the price.
-- Joe
-- Joe
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01-04-2004, 10:25 PM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, LT1
Transmission: TKX, 4L60E
Axle/Gears: 3.42, 3.23
Thats the trade in program. The guy I talked to said he'd change the housing, and the impeller. Flate rate parts and labor. either 500 or 600.00. I'm gonna call again monday.
-- Joe
-- Joe
01-12-2004, 06:51 AM
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, LT1
Transmission: TKX, 4L60E
Axle/Gears: 3.42, 3.23
Talked to vortech again. Price to change the housing, impeller, bearings, etc is $817.00 plus shipping.
-- Joe
-- Joe
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