Belt wrap kit

Subject: Belt wrap kit Thu Jul 17, 2008 7:49 pm

For anyone running a Gen V- I am having a belt wrap kit fabbed up tomorrow if the shop isn't closed for a race. Similar to the one below but with a few differences (rotate bar 90* and have third attachment to alt bracket for more support). This simple design is stronger than the W-Body Store's belt wrap kit. You can run a 6 or 8 rib belt depending on your setup. The pictures below are of a crude design and I hope mine will be a little more ascetically pleasing... This is not my car. Let me know if anyone has an interest in this and I can get more made. Price will be addressed next week.

Belt wrap kit 20080710

Subject: Re: Belt wrap kit Thu Jul 17, 2008 7:52 pm

It should also work for a gen 3 wouldn't it?

Subject: Re: Belt wrap kit Thu Jul 17, 2008 8:05 pm

Because you are not running the tubes to a bracket from the sc snout, like the older wrap kit version, I guess they would. SC snout housing has a different bolt pattern between the two but the sc mounting holes are in the same place. I'm making it for a Gen V and if you think it will work on a Gen III fantastic. I just want it to work for my Gen V.

It's pretty cool when you have to start worrying about if a 1"x1.5" solid aluminum bar bends.. twisted

Subject: Re: Belt wrap kit Thu Jul 17, 2008 8:49 pm

Cool! Let me know the price.

Subject: Re: Belt wrap kit Fri Jul 18, 2008 9:15 am

Wow..thats covering more than 2/3's of the pulley....very nice.

Subject: Re: Belt wrap kit Fri Jul 25, 2008 5:59 pm

Got it done yesterday. What a difference!

Very basic design but strong as hell. It dosen't flex at all. I might have the top machined to match the fuel logs.

Belt wrap kit P7250310

She is happy for now. Time to get ready for paint and interior soon. Paint starts Aug 9th (a little birthday present for myself)

Subject: Re: Belt wrap kit Sat Jul 26, 2008 6:40 am

Is that an 8-rib belt, too?

Subject: Re: Belt wrap kit Sat Jul 26, 2008 10:47 am

deekster_caddy wrote:: Is that an 8-rib belt, too?

yes it is

Subject: Re: Belt wrap kit Sat Jul 26, 2008 10:50 am

Did you change the snout too, or just sandblast it clean?

Subject: Re: Belt wrap kit Sat Jul 26, 2008 10:52 am

Chicken wrote:: Did you change the snout too, or just sandblast it clean?

GEN V came with a finish like that.......

Subject: Re: Belt wrap kit Sat Jul 26, 2008 10:53 am

oh wait....the top pictures of the mock up is someone else's car....

Subject: Re: Belt wrap kit Sat Jul 26, 2008 10:55 am

Chicken wrote:: oh wait....the top pictures of the mock up is someone else's car....

yup the top one is a GEN III supercharger....... EWOLF has a GEN V

Subject: Re: Belt wrap kit Tue Jul 07, 2009 9:28 pm

how do you know when the s/c belt is slipping? wouldnt a shorter belt solve the problem if it was?

Subject: Re: Belt wrap kit Tue Jul 07, 2009 10:27 pm

You know a belt is slipping by observing a sharp loss in boost at a certain (usually high) RPM. Sometimes you can hear some brief slipping as a "chirp", but this is normal, and doesn't result in a hindered performance. It's just the inertia of the blower trying to slow down after letting off the gas.

A shorter belt will add tension, but it does not help with belt wrap/contact. Very small SC pulleys tend to slip more because A) they spin the blower faster, requiring more torque, and B) they have less contact area for the belt to grip. This cannot be solved only by adding tension. You must sometimes relocate the belt route so that it wraps around the SC pulley better.

The Riviera's stock SC belt routing is better designed than on a Regal GS or GTP, so we can usually run smaller pulleys without much slip.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch
^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown

Subject: Re: Belt wrap kit Tue Jul 07, 2009 10:39 pm

wow. looking at my 95 there dont seem to be alot of room for a bracket. this would require lots of imagination....

Subject: Re: Belt wrap kit Tue Jul 07, 2009 10:41 pm

To some extent, you can help the issue by choosing your idler and tensioner pulley sizes carefully.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch
^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown

Subject: Re: Belt wrap kit Tue Jul 07, 2009 11:00 pm

Quote :: To some extent, you can help the issue by choosing your idler and tensioner pulley sizes carefully.

AA- I hope you are not insinuating that I did not take into consideration my pulley sizes when building my motor... wink

Subject: Re: Belt wrap kit Tue Jul 07, 2009 11:20 pm

Not at all - looks to me like you put plenty of consideration into that idler!

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch
^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown

Subject: Re: Belt wrap kit Mon Sep 21, 2009 5:28 pm

Eric, how long is that 8-rib and what size are all the pulleys?

Subject: Re: Belt wrap kit Mon Sep 21, 2009 10:21 pm

You never did say how much it cost either.???

Subject: Re: Belt wrap kit Tue Sep 22, 2009 9:17 am

Series I

Tried to find info on Series I and only came up with one pulley used twice.
Part#....OD......ID.........Info
89007...76mm...17mm...23mm flat pulley

Series II
Belt wrap kit 3

L36
Pos...Part#....OD.......ID.......Wide.....Info
3......89007...76mm...17mm...31mm...flat

L67
Pos...Part#....OD.......ID.......Wide.....Info
9......89006...90mm...17mm...30mm...flat
3......89007...76mm...17mm...31mm...flat
8......89051...76mm...17mm...23mm...6 rib with flange

L67 with 8 Rib SC Pullies
Pos...Part#....OD.......ID.......Wide.....Info
8......89053...76mm...17mm...NA........8 Grooves with flange (3")
8......89057...90mm...17mm...NA........8 Grooves with flangle (Optional 3.5")
3 SC..89016...74mm...17mm...37mm....flat (SC tensioner pulley)
9......89048...90mm...17mm...37mm....flat (Optional 3.5" for pos 3 if SC'd)
3......89007...76mm...17mm...31mm...flat (6 rib accessory belt tensioner pulley)

** All part numbers are from the Dayco.com website.

Subject: Re: Belt wrap kit Tue Sep 22, 2009 9:59 am

Codith,
All my pulleys have been changed to the 3.5" 8 rib. I will check on the belt size today... keep in mind I am running a oversized ballancer and 2.8" SC pulley with belt wrap.

Rick,
It has been a while and I will have to find the invoice but I think the belt wrap cost me aroung $150-$175 for a machine shop to fabricate the belt wrap kit. That included the materials, pulley, and longer bolts too.

Subject: Re: Belt wrap kit Tue Sep 22, 2009 3:22 pm

ewolfe0050 wrote:: Codith,
All my pulleys have been changed to the 3.5" 8 rib. I will check on the belt size today... keep in mind I am running a oversized ballancer and 2.8" SC pulley with belt wrap.

You are running an ATI balancer? That's good to know because that would have screwed me up a little bit. I'll be using ZZP's powerbond 8rib balancer. I've got a beltwrap kit essentially just like yours for the genV and a set of 8rib idlers in 3" and 3.5". My hope was to be able to fluctuate between a few pullies using one belt like I have been up to this point. That 4+" grooved idler pulley has been a godsend for me but I won't be able to use that on the 8rib so I'm trying to get just the right belt. Having a riv instead of a gtp makes this a little more tough...

http://www.smoothflowpulleys.com/Belt_wrap_kit.html

That's the beltwrap I have BTW. I think it should be functionally the same as what you have. Travis testifies he's a great guy with great stuff in case anyone is looking for something to stop slip.

Subject: Re: Belt wrap kit Tue Sep 22, 2009 3:28 pm

turtleman wrote:: http://www.smoothflowpulleys.com/Belt_wrap_kit.html

That's the beltwrap I have BTW. I think it should be functionally the same as what you have. Travis testifies he's a great guy with great stuff in case anyone is looking for something to stop slip.

The dude is legit!!! good guy

Subject: Re: Belt wrap kit Mon Sep 28, 2009 6:51 pm

ewolfe0050 wrote:: Codith,
All my pulleys have been changed to the 3.5" 8 rib. I will check on the belt size today... keep in mind I am running a oversized ballancer and 2.8" SC pulley with belt wrap.

Did you check the belt size by chance?
btw did you change the the tensioner pulley because in the pics you posted of your car, it looks like that ones a 3" I just want to double check.

» Wrap instead of paint?
» FAQ: Smaller SC pulley? What Size?
» Belt tensioner replacement
» possible belt slippage?
» Supercharger belt