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

 

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.

 

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.

 

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

 

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!!!

 

Yeah but with the a-trim, they just upgrade it and send it back.. I think $500-$600.00 is the price.

-- Joe

 

I could be wrong but, The guy told me that they send me a new unit and you pay the diff.

 

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

 

Talked to vortech again. Price to change the housing, impeller, bearings, etc is $817.00 plus shipping.

-- Joe