Installed Stinker's 7" Lower Pully Today...

[TNVIPER]

Well, not exactly....actually my dealer installed it...along with Stinker's lifetime oil cooler lines...got the lines installed labor free under warranty.:rock:

The tech said the pulley was an easy install......he did have to replace the belt with a longer one. Results: Roe SC with the std Roe pulley (5.6LB) I hit a max PSI of exactly 11LBs. With the stock lower pulley and 10LB pulley on the Roe blower I was hitting a max PSI of 9.3. Both PSIs were checked with the dealer's boost guage and the one installed on my piller..

Sean Roe had calculated the 7" pulley would give about 11.9 PSI with his std blower pulley. My PSIs are probably lower due to my heads being ported & polished with larger valves. If you have stock heads you will probably see closer to 12 PSI.

As far as SOTP results....truck pulls a little stronger but more so seems to produce power faster....I went to a short stretch of road where I know how the truck performs. I slowed to a steady 20 MPH in 2nd gear then floored it.......

Before the pulley the RPMs would have to build before the rear tires would break loose and start spinning.......now the tires break loose as soon as I hit the gas..:rock: ......no sign of belt slipage..

Thanks Stinker...I think this is going to be a great mod..:congrats:

 

[Big Worm]

Larry we going to see some pictures?

 

[FATJACK]

I have ridden in Larrys truck before this pulley and it is very impressive. Pulls like crazy.

 

[TNVIPER]

Not really much to see...and no pics were made during the install.......I could take some of the lines (awesome lookin...makes me want to change all lines to the braided) but there are some already around here..

 

[Dom426]

be sure you dnt run lean any increse in boost might not be safe unless you ar rich just a thought

 

[blackviper]

Hey Larry, glad to hear the positive results. I guess doing the math, the 10lbs pulley would probably net 16lbs.

 

[TNVIPER]

Hey Larry, glad to hear the positive results. I guess doing the math, the 10lbs pulley would probably net 16lbs.

I figured the same george...keeping the 10LB pulley for later...when you get that intake/intercooler done..

 

[TNVIPER]

be sure you dnt run lean any increse in boost might not be safe unless you ar rich just a thought

You are most correct Dom....and according to my A/F gauge I am only hitting around 13.0 at WOT....not a safe mix...next stop is the dyno for a little fine tuning..

 

[Prof]

Oh boy! Oh boy! Oh boy!

Numbers when you get a chance please.

 

[TNVIPER]

Oh boy! Oh boy! Oh boy!

Numbers when you get a chance please.

Hope to have the tune done in the next week or two.....plan on a 93 octane no meth....93 with meth....100 race gas/meth......

 

[Prof]

Yum............

 

[WAZZSUP]

..........love it when a plan comes together

 

[LoveThisTruck]

HMMMMM you think you could get 16lbs out of the ROE?:dontknow:

 

[blackviper]

My plan is to reach the limit of the Lysholm supercharger. It's been said in the past that the supercharger is good for 18 or 19 LBs. I would imagine that would be with stock compression and stock heads. Once you lower the compression and port the heads, it will reduce the total net boost. We'll see, I'm looking forward to it.

 

[TNVIPER]

My plan is to reach the limit of the Lysholm supercharger. It's been said in the past that the supercharger is good for 18 or 19 LBs. I would imagine that would be with stock compression and stock heads. Once you lower the compression and port the heads, it will reduce the total net boost. We'll see, I'm looking forward to it.

lookin forward also...

 

[JTS VENOM PERFORMANCE]

thansk for the update TNVIPER, so the belt had to be replaced?

but looks like you gained a good bit of boost:rock:

 

[TNVIPER]

thansk for the update TNVIPER, so the belt had to be replaced?

but looks like you gained a good bit of boost:rock:

Yep...the belt was about 1-1.5" short........the belt I had on was the one that comes with the Roe kit..not the OEM belt...which of course would be way short with the blower............as far as boost I was seeing about 7 PSI with the Roe std pulley...so about 4 PSI increase...not bad at all..:rock:

 

[viperhauler]

larry, you still on a stock bottom end, too?

 

[JTS VENOM PERFORMANCE]

Yep...the belt was about 1-1.5" short........the belt I had on was the one that comes with the Roe kit..not the OEM belt...which of course would be way short with the blower............as far as boost I was seeing about 7 PSI with the Roe std pulley...so about 4 PSI increase...not bad at all..:rock:

damn 4 psi is awesome!!!!!!!! i was think 2psi at the most

 

[perk_1405]

Well, not exactly....actually my dealer installed it...along with Stinker's lifetime oil cooler lines...got the lines installed labor free under warranty.:rock:

The tech said the pulley was an easy install......he did have to replace the belt with a longer one. Results: Roe SC with the std Roe pulley (5.6LB) I hit a max PSI of exactly 11LBs. With the stock lower pulley and 10LB pulley on the Roe blower I was hitting a max PSI of 9.3. Both PSIs were checked with the dealer's boost guage and the one installed on my piller..

Sean Roe had calculated the 7" pulley would give about 11.9 PSI with his std blower pulley. My PSIs are probably lower due to my heads being ported & polished with larger valves. If you have stock heads you will probably see closer to 12 PSI.

As far as SOTP results....truck pulls a little stronger but more so seems to produce power faster....I went to a short stretch of road where I know how the truck performs. I slowed to a steady 20 MPH in 2nd gear then floored it.......

Before the pulley the RPMs would have to build before the rear tires would break loose and start spinning.......now the tires break loose as soon as I hit the gas..:rock: ......no sign of belt slipage..

Thanks Stinker...I think this is going to be a great mod..:congrats:

"no sign of slipage" does that mean it was sliping beffore?