BBk underive pully kit question
Thread Starter
Staging Lane
Joined: Dec 2011
Posts: 71
Likes: 0
From: Arizona
BBk underive pully kit question are they woth it? im thinking about picking one of these up and was curious if anyone had any personal experience or opions on it.
http://www.summitracing.com/parts/BBK-1591/
thanks,
Branden
http://www.summitracing.com/parts/BBK-1591/
thanks,
Branden
Underdrive pullies are a better mod on vehicles with belt driven waterpumps where there is greater load to reduce. I am sure that is why the LT1 gains are so much lower than the 8-15 in the Summit description.
http://www.ws6.com/mod-2.htm
Underdrives tend to cause charging issues on stock cars too, if cammed the raised idle can offset that.
I don't have one on my car, if I were to do an upgrade like this I would buy an underdrive damper which would shave some rotating weight for further gains but again even at the level I am playing at I have a stocker.
http://www.ws6.com/mod-2.htm
Underdrives tend to cause charging issues on stock cars too, if cammed the raised idle can offset that.
I don't have one on my car, if I were to do an upgrade like this I would buy an underdrive damper which would shave some rotating weight for further gains but again even at the level I am playing at I have a stocker.
TECH Regular
Joined: Apr 2011
Posts: 441
Likes: 0
From: Deep in the heart of Texas
since your running a stick I'd get the tune and some DR's since you've free up the intake and exhaust already. A good tuneup and new coil goes a long way.
My mods went like this.
1.CAI
2.CAT and muffler elimination
3.Tune
4. 1.6RR, valve springs, coil wires plugs, 100 horse nitrous, converter, all at the same time.
5. Cam
6. Retune, colder plugs and 150 shot
My mods went like this.
1.CAI
2.CAT and muffler elimination
3.Tune
4. 1.6RR, valve springs, coil wires plugs, 100 horse nitrous, converter, all at the same time.
5. Cam
6. Retune, colder plugs and 150 shot
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