Supercharged 3.1 in a Sonoma

[caffeine]

Tensioner was fine and was from a low mileage 3500. Belt was pretty tight but at the same time it was a very long belt.

[1988GTU]

Was the tensioner too far extended or not bound too tight?

[Mars]

I didnt know they had that. good info.

[caffeine]

The belt was tight and wrapped 90% of the SC pulley. Crank pulley was wrapped less probably around 30-40%. I think the fix would have been a separate belt for the SC. Sorta like what the 3800s and T-bird super coupes have.

[Mars]

Weird, there must have been an easy fix...

6 rib should hold man, some people run TINY pulleys on them things. I mean like 1" i dia. haha.

Was the belt super tight ?

I want to do a SC 3500 but with a custom intake manifold, and bolt the blower right to that.

[caffeine]

I don't think a smaller pulley would have helped. It was choking the motor because the belt was slipping, causing the charger to turn too slowly. With the stock pulleys it was only making 4psi when the belt would start squealing at around 3000 rpm or so.

[Mars]

i wonder if a smaller pulley would have helped the choking motor at high rpm?

i would love to SC my blazer... was even lookin for a M90..

[caffeine]

The truck was sold about two weeks ago. Supercharger was removed because belt would not stop slipping and was choking the motor at higher rpms. What it really needed to work was a dedicated crank pulley and belt, preferably 8-rib since the charger already had an 8-rib pulley anyway.

However the motor itself ended up being awesome; never burned or leaked any oil, plenty of power for a little truck like that.

[1QUICKHATCH]

Any updates on this? track times/dyno #'s? Is it still running a stock cam?

I am thinking of doing a similar project to this my self but in a larger truck!

[Mars]

truck is bad ass.

[caffeine]

You wouldn't even know sitting in the passengers seat. They're not harsh at all.

[Canyonero]

I'm in a similar situation, Gen-II RWD conversion - because those are the parts I have...

How does it feel with solid motor mounts?

[AleroB888]

What do you mean? There's some sort of greddy BOV on there already.

Would be hilarious to put a duck call on it though lol. Just because its constantly open at idle

Well, If it turns out that it needs more venting capability.

In my case, I don't have one yet. It's going to need one, maybe 2 of the largest available, so I'm looking at a big investment there.

But I already have the internal and external standard-type bypass valves (not BOV), so it should be closed at idle.

I'm already on plan "C" lol

[caffeine]

What do you mean? There's some sort of greddy BOV on there already.

Would be hilarious to put a duck call on it though lol. Just because its constantly open at idle

[AleroB888]

Not that it would be a great coincidence, but are you also thinking about designing your own BOV?