JRSC belts & pulleys: please discuss it here

49527 Views 819 Replies 63 Participants Last post by iamsyko, Feb 27, 2017

tt061880

Discussion Starter · May 29, 2004 (Edited by Moderator)

I know a lot of us JRSC guys having or had problems with our belts and pulleys and a lot of time we hijacking other threads because of it, so I thought it was a good idea to start up on a thread just about jrsc belts and pulleys. The thread is not only for current jrsc peeps but also for the newbies as well so they won't get us frustrated asking the same question over and over again.

I'll start off with one question, I read around and found a member who is using a goodyear 070775 belt which is 7 rib and 77.5 inches long. I tried a dayco belt that was 77.5 long and it wasn't even anywhere close to fitting onto the 3.4 pulley. The dayco 78.9 belt fit extremely well for the purpose. What I want to know is that anyone else tried the goodyear 77.5 long on a 3.4 pulley or is it because different makers make belt a little bit different in length.

TT

521 - 540 of 820 Posts

chk

· #521 · Aug 10, 2004 (Edited)

uchiha said:
by the way CHK how do you check the belt tension? Does Jotech do that for you?

My car is not at JoTech right now and that's probably my first mistake. It broke last week and was towed to closet place, damn AAA fine print. I will be taking it back to JoTech to make sure everything is done right though!

As far as the tension, I just did what alpha or tt suggested, turn wheel all the way over with AC on high and rev the engine up to see if it squeals. Never squealed, so why fix what isn't broke. I'll ask about the new pulleys though.

CivicSouldjaEX

· #522 · Aug 13, 2004

So how did everything go?

chk

· #523 · Aug 13, 2004

CivicSouldjaEX said:
So how did everything go?

So far so good. It turned out that my crank shaft pulley had a chip in it. How it got there,

I don't have a clue. But, it's been replaced and the new belt seems to be holding :nervous: . It sucks, because we are having a meet tonight at a 1/4 mile track in San Antonio, but I'm skeered to run since the belt is so new. I'm just not ready to trust again so soon.

supercharged-k20a

· #524 · Aug 16, 2004

hey guys my first day on this sight ive got a 02 type s w/jr supercharger race version and a bunch of other crap done to it but ive only had the supercharger on it for 2 months and 2 belts later its running great after about 10 calls to jr and a new tensioner and spacers has any body dynoed a type s with the race version?

i VieTEC

· #525 · Aug 16, 2004 (Edited)

supercharged-k20a said:
hey guys my first day on this sight ive got a 02 type s w/jr supercharger race version and a bunch of other crap done to it but ive only had the supercharger on it for 2 months and 2 belts later its running great after about 10 calls to jr and a new tensioner and spacers has any body dynoed a type s with the race version?

Welcome to the board.

You have a race version with what pulley size?: 4" (5psi), 3.4" (7psi), 3.2 (9psi)???

Do you have just Hondata reflash or K-Pro? There are many dynos but all are different because of many variables.

SiK LiL pLaYa

· #526 · Aug 16, 2004

i VieTEC said:
Welcome to the board.

You have a race version with what pulley size?: 4" (5psi), 3.4" (7psi), 4.2 (9psi)???

Do you have just Hondata reflash or K-Pro? There are many dynos but all are different because of many variables.

Isnt is 3.2 for the 9PSI? I'm not sure just woundering?

uchiha

· #527 · Aug 16, 2004

SiK LiL pLaYa said:
Isnt is 3.2 for the 9PSI? I'm not sure just woundering?

yes you are right. It was a typo

SiK LiL pLaYa

· #528 · Aug 16, 2004

NO prob. I needed to know also

tt061880

Discussion Starter · #529 · Aug 16, 2004

3.2 is actually about 9.4psi

lanman2000

· #530 · Aug 16, 2004

tt061880 said:
3.2 is actually about 9.4psi

i VieTEC

· #531 · Aug 16, 2004

sorry for the typo

you guys with kpro please do me a favor and confirm if your knock threshold reading is working and not dead at 0.00V all the time like mine

tt061880

Discussion Starter · #532 · Aug 16, 2004

I think mine does that too

i VieTEC

· #533 · Aug 16, 2004

tt061880 said:
I think mine does that too

Please confirm bro...

conradb212

· #534 · Aug 16, 2004

i VieTEC said:
sorry for the typo

you guys with kpro please do me a favor and confirm if your knock threshold reading is working and not dead at 0.00V all the time like mine

I have seen numerous datalogs from numerous cars, and K.Threshold always showed a value. However, you have a base and an unusual setup, hence I'd first check with another base and then call Hondata and see what they have to say.

i VieTEC

· #535 · Aug 16, 2004

conradb212 said:
I have seen numerous datalogs from numerous cars, and K.Threshold always showed a value. However, you have a base and an unusual setup, hence I'd first check with another base and then call Hondata and see what they have to say.

http://www.hondata.com/forum/viewtopic.php?t=2660

supercharged-k20a

· #536 · Aug 18, 2004

hey i vietec iv'e got the 7psi pulley with injen intake comptech header comptech exhaust and just the hondata reflash because im not sure if i really needed the k pro

CivicSouldjaEX

· #537 · Aug 19, 2004

supercharged-k20a said:
hey i vietec iv'e got the 7psi pulley with injen intake comptech header comptech exhaust and just the hondata reflash because im not sure if i really needed the k pro

Well with the K-pro and some proper tuning, you'll find some of that hidden horsepower that you're missing out on. Makes a good difference and it's a good investment toward future modification.

lanman2000

· #538 · Sep 5, 2004

ok here is my solution to constantly stripping out the bottom pivot bolt on the JRSC belt tensioner...

i know i know... i shouldnt have got threads in the top hole of both scissors too.. i am retarded and for some reason thought those had stripped out so i told the guy to thread them.... i had to drill the top holes back out (so that was a complete waste of money) and just keep the thread in the hole on the fixed scissor that the bottom pivot bolt goes into. This setup is tight as tight now.. i'm pushing 9.4 psi solidy at redline. :thumbsup:

http://www.razorhosts.com/galleries/tensioner

Time to go back to the tuner!!! for those of you that didnt read my other posts. I stripped out the bottom pivot bolt AT THE TUNER when i tried to tighten the belt since we were seeing boost dropping off above 6000rpm. ARGH! VERY frustrating and a costly setback. :thumbsdow

ocorzo

· #539 · Sep 6, 2004

Does anybody know the thickness of the washer/spacers that Keith from JR sends to address the alignmenet issues with the power steering pump?

Thanks

chk

· #540 · Sep 6, 2004 (Edited)

ocorzo said:
Does anybody know the thickness of the washer/spacers that Keith from JR sends to address the alignmenet issues with the power steering pump?

Thanks

The one's he sent me are .030 (thirty one thousandths) I believe.

521 - 540 of 820 Posts

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