Innovate (Sprintex) Supercharger Owners Topic - Page 418 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Fizz · 12-31-2014, 12:16 AM

I've ordered a GFB alternator pulley, should arrive next Monday. Will update on result.

Would the Gates Blue belt help? Anybody know the correct part number for that?

TemeCal · 12-31-2014, 01:01 AM

Quote:

Originally Posted by Fizz

I've ordered a GFB alternator pulley, should arrive next Monday. Will update on result.

Would the Gates Blue belt help? Anybody know the correct part number for that?

I'm using the Gates blue belt, so I'd say it doesn't help. Someone actually recommended that I switch back to the black belt, to see if that quiets it. You have the black belt on?

Fizz · 12-31-2014, 02:54 AM

Quote:

Originally Posted by TemeCal

I'm using the Gates blue belt, so I'd say it doesn't help. Someone actually recommended that I switch back to the black belt, to see if that quiets it. You have the black belt on?

Yup mine's the black belt K061015.

Mechazawa · 12-31-2014, 11:19 AM

I don't have one of these on the car, but it just sounds like normal belt "squeal" to me. Usually resolved by increasing tension or changing to a different brand of belt.

I remember it was common on miatas with gates belts in general. The concensus was that American made belts used a very slightly different profile from the oem Japanese made belts. You might try figuring out who the oem supplier is and sourcing the correct length belt from them. Or as someone else suggested go with a slightly shorter belt to increase tension.

Ultramaroon · 12-31-2014, 02:41 PM

Ok, I had a chance to sleep on it. If it fits, a slightly shorter belt will definitely get you higher tension. I can go into details if someone wants. Otherwise just have a look at this and consider how much more tension you can get pulling down on a taught clothesline versus a loose one. It's all in the geometry.

It won't be dramatic. This is by design but tension will increase.

whataboutbob · 12-31-2014, 03:35 PM

I'm not getting any squealing out of my setup. I've got the upgraded idler pulley, 75mm pulley on blower, raceseng pulley set, and a fresh black belt FWIW.

TemeCal · 12-31-2014, 03:44 PM

Quote:

Originally Posted by whataboutbob

I'm not getting any squealing out of my setup. I've got the upgraded idler pulley, 75mm pulley on blower, raceseng pulley set, and a fresh black belt FWIW.

I'm running the smaller, 70mm pulley. I wonder if it's only squeaking on those of us with smaller pulleys (using the same size belt as you). @Fizz - what pulley are you running?

Ultramaroon · 12-31-2014, 03:54 PM

Quote:

Originally Posted by TemeCal

I'm running the smaller, 70mm pulley. I wonder if it's only squeaking on those of us with smaller pulleys (using the same size belt as you). @Fizz - what pulley are you running?

bingo

TemeCal · 12-31-2014, 03:57 PM

Quote:

Originally Posted by Ultramaroon

bingo

Time to possibly try a smaller belt!

Ultramaroon · 12-31-2014, 04:00 PM

Quote:

Originally Posted by TemeCal

Time to possibly try a smaller belt!

Happy New Year!

whataboutbob · 12-31-2014, 04:03 PM

@DriftEm is also running a 70mm...

Fizz · 12-31-2014, 06:36 PM

I'm running 75mm pulley.

Ultramaroon · 12-31-2014, 06:55 PM

Quote:

Originally Posted by Fizz

I'm running 75mm pulley.

Do we already have a photo of your tensioner position here?

Fizz · 12-31-2014, 07:25 PM

Quote:

Originally Posted by Ultramaroon

Do we already have a photo of your tensioner position here?

No but I'll post up a photo later. How do you want the shot to be? I can't really take a pulley level shot without removing the bumper though...

12-31-2014, 02:41 PM	#5843
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,869 Thanks: 52,132 Thanked 36,520 Times in 18,921 Posts Mentioned: 1106 Post(s) Tagged: 9 Thread(s)	Ok, I had a chance to sleep on it. If it fits, a slightly shorter belt will definitely get you higher tension. I can go into details if someone wants. Otherwise just have a look at this and consider how much more tension you can get pulling down on a taught clothesline versus a loose one. It's all in the geometry. It won't be dramatic. This is by design but tension will increase. __________________ service manuals

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12-31-2014, 12:16 AM	#5839
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	I've ordered a GFB alternator pulley, should arrive next Monday. Will update on result. Would the Gates Blue belt help? Anybody know the correct part number for that?

12-31-2014, 11:19 AM	#5842
Mechazawa Member Join Date: Oct 2012 Drives: FR-S, 6MT, White Location: Hartford County, CT Posts: 63 Thanks: 6 Thanked 11 Times in 9 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I don't have one of these on the car, but it just sounds like normal belt "squeal" to me. Usually resolved by increasing tension or changing to a different brand of belt. I remember it was common on miatas with gates belts in general. The concensus was that American made belts used a very slightly different profile from the oem Japanese made belts. You might try figuring out who the oem supplier is and sourcing the correct length belt from them. Or as someone else suggested go with a slightly shorter belt to increase tension.

12-31-2014, 06:36 PM	#5850
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	I'm running 75mm pulley.

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