A Cog setup's draw backs
Thread Starter
Joined: Aug 2002
Posts: 10,331
Likes: 1
From: San Antonio, TX
Re: A Cog setup's draw backs
I know people's finger grip will be different, but I try to twist the belt with my thumb and forefinger and if it will twist greater than 90 degrees, I tighten it some more.
And I allow a couple days of driving to try to achieve optimal tightness:
- Put it on and run a few minutes. Tighten.
- Drive out and tighten when I get back to the house.
Day two:
- Drive out and tighten. Get on it. Not the expected boost level? Tighten.
Day three:
Repeat day 2.
Belt life is significantly shortened if I try to get optimal tighteness (max boost without dropoff) in one day.
A pain... but it works best for me.
And I allow a couple days of driving to try to achieve optimal tightness:
- Put it on and run a few minutes. Tighten.
- Drive out and tighten when I get back to the house.
Day two:
- Drive out and tighten. Get on it. Not the expected boost level? Tighten.
Day three:
Repeat day 2.
Belt life is significantly shortened if I try to get optimal tighteness (max boost without dropoff) in one day.
A pain... but it works best for me.
Put the 16's on and tightened the belt and was dropping my buddy off and i layed into it. Felt so much stronger up top and i looked at my boost gauge and saw 10 psi. saw it both runs i did. Cant wait till friday at the track.... 9 inch here i come....... crossing fingers i dont break anything
TECH Addict
Joined: Nov 2001
Posts: 2,659
Likes: 1
From: Bellevue, Wa
Re: A Cog setup's draw backs why has nobody here tried the spring tensioner setup from SD-Concepts?
They claim they can max out a P1-SC with no slip using their setup.
Mine will be here in a few weeks and I will be able to report how well it works probably by year end. (doing my own custom setup so it will take a while)
but those of you with existing kits spending all this money on pulleys and belts and such, I would have thought it would be tried by now.
They claim they can max out a P1-SC with no slip using their setup.
Mine will be here in a few weeks and I will be able to report how well it works probably by year end. (doing my own custom setup so it will take a while)
but those of you with existing kits spending all this money on pulleys and belts and such, I would have thought it would be tried by now.
Re: A Cog setup's draw backs I think only Z8's and 1badls1 (427) have had direct experience running cog setups on their cars.
I hear that cog pulleys are a bit pricey maybe Z8's will drop and tell us.
I hear that cog pulleys are a bit pricey maybe Z8's will drop and tell us.
Re: A Cog setup's draw backs i use carquest belts, i haven't had any belt brakage issues( i had a napa belt snap off 24hrs after installing it). recently i've had parts of the belt getting worn off (just like one of the pulleys was doing a burnout on a section of the belt), but i think i know what it is.
from what i've seen, the only thing keeping a cog belt from walking off are the shoulders on the tensioner pulley.
from what i've seen, the only thing keeping a cog belt from walking off are the shoulders on the tensioner pulley.
TECH Addict
Joined: Oct 2002
Posts: 2,793
Likes: 100
From: Mefis
Re: A Cog setup's draw backs This is a little off the wall, but it might work. I dont have the resources otherwise I might try it. Use a belt drive off a late model harley or any bike like that. The pulleys could be used too. Who knows it might be work or I might be completley wrong.
I also would like to know why COGS is not widely used..??? The ONLY reason I steered away from a supercharger setup originally was because of all you guys complaining of belt slippage.. Turbo setups are having just as many problems if you try to run any kind of good boost through them.. What the hell is the answer????
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
I had my tensioner on my Procharger MAXED out with the 40.8" carquest belt, with the 7.85" crank pulley and 3.3" blower pulley...broke the pins in the crank pulley there was so much tension....belt still slipped..
So the next and final step to solve my problem will be to use the old Reicard pulley I was using with the teeth, and a 39" Dayco Polycog belt (8rib), this belt is an inch smaller and will be REALLY tight...hopefully this will grab...
So the next and final step to solve my problem will be to use the old Reicard pulley I was using with the teeth, and a 39" Dayco Polycog belt (8rib), this belt is an inch smaller and will be REALLY tight...hopefully this will grab...
TECH Fanatic
Joined: Dec 2001
Posts: 1,220
Likes: 0
From: Germantown, MD
Originally Posted by phenyxTA
You can get the complete cog conversion kit from rpmoutlet.com for the Procharger kits. $488 and it includes the belt. I'll be ordering mine soon. 
Mike
Looks like I will be ordering the cogs set up from rpm outlet too, on the dyno we only saw 13psi before it nosedived to 9psi. I emailed rpmoutlet to get the availability on these set ups, and if they are special order, I asked them how long it would take them to get them to me once the order is placed. I hope to be hearing from them soon.
Man I hate this belt slip crap.
J
Man I hate this belt slip crap.
J
Thread Starter
Joined: Aug 2002
Posts: 10,331
Likes: 1
From: San Antonio, TX
I will be looking into that Cog setup from rpmoutlet. Cant you just buy that setup straight from ASP?? You can get any crank pulley size?? What about blower pulley sizes?? Does every Auto parts store carry these types of belts or are the a special order thig from just a few places??
Thanks, Kyle
Thanks, Kyle
TECH Senior Member
Joined: Nov 2001
Posts: 11,603
Likes: 0
From: Chi-Town, IL
I think the belts are special order as well..
I know that with my 8 rib pulleys from ASP it took me 5 weeks to get the crank and about 3 weeks everytime I needed to change a blower pulley...Reichard racing can make these pulleys next day avaible sometimes...not sure if he does COGS though...
I know that with my 8 rib pulleys from ASP it took me 5 weeks to get the crank and about 3 weeks everytime I needed to change a blower pulley...Reichard racing can make these pulleys next day avaible sometimes...not sure if he does COGS though...