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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 11-18-2019, 11:14 PM   #8723
jhalagian
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Innovate (Sprintex) Supercharger Owners Topic

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Originally Posted by 86TOYO2k17 View Post
Update, installed RPM belt. I didn’t feel like i was getting belt slip or necessarily having any issues. I just like trying and testing things out. But now it feels more responsive on throttle engagement, and my boost gauge before was showing 12.5psi max, now showing almost 13.5psi.


I completely agree with the throttle response/engagement. Not that there was a lag before but feels quicker now. What size did you install? I’ve had no issues so far. If this one snaps maybe I’ll go up a size?


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Old 11-19-2019, 12:00 AM   #8724
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Originally Posted by jhalagian View Post
I completely agree with the throttle response/engagement. Not that there was a lag before but feels quicker now. What size did you install? I’ve had no issues so far. If this one snaps maybe I’ll go up a size?


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From my earlier post
“ Personally i have oversized/underdriven water/alt pulleys so my belt is different size. i use a K061033, and just purchased (haven't installed yet) Gates K061037RPM belt designed specifically for superchargers”

I just chose the next size up.
Idk if it was just different weather conditions since last time i recorded my boost gauge to play back and see exactly what my boost was. But i was surprised to see almost 1psi more when i recorded today and compared from before
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Old 11-19-2019, 03:12 PM   #8725
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Opinion question for y'all:

For intercooled systems, I hear that initial intake temperature doesn't matter too much. Rather, it's how efficient the intercooler is. Do you think this is true? If so, would you think a short-ram intake would work best for this setup?
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Old 11-19-2019, 04:13 PM   #8726
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Opinion question for y'all:

For intercooled systems, I hear that initial intake temperature doesn't matter too much. Rather, it's how efficient the intercooler is. Do you think this is true? If so, would you think a short-ram intake would work best for this setup?
If its a short ram getting air from inside engine bay then no. That would be bad. Stock air box or something like the Perrin CAI is generally best. A short ram intake being fed by a hood scoop could be beneficial.

Intercooler prevents or delays heatsoak. So initial intake temps are the same, but after even one pull your IATs will go up and you’ll be down on power, intercooler should delay this allowing for a couple pulls before high IATs drop power. The only real way to fully combat it is intercooler + wmi and or E85.
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Old 11-20-2019, 07:32 PM   #8727
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What belt (or belt & new idler) would you recommend for the 72.5mm?
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Old 11-20-2019, 07:51 PM   #8728
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What belt (or belt & new idler) would you recommend for the 72.5mm?
Stock belt would work fine. But more belt wrap is typically a good thing.

Or get Nuline EP121 or Dorman 419-610 Idler Pulley for extra belt wrap, the nuline has lots of reviews/high praise. But dorman was 9$ and has worked flawlessly for me. Both same 76mm diameter but dorman is a bit wider so belt rides perfectly centered with plenty of space on either side don’t have to worry about belt jumping or sliding off.
then you'll want to pair either pulley with K061020RPM this would probably be the best combination.
RPM belt is much stiffer and the grooves don't have as much space/width so it really bites and grabs hard and right away. Eliminates any belt slip and helps on throttle response.
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Old 11-20-2019, 09:02 PM   #8729
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Quote:
Originally Posted by 86TOYO2k17 View Post
Stock belt would work fine. But more belt wrap is typically a good thing.

Or get Nuline EP121 or Dorman 419-610 Idler Pulley for extra belt wrap, the nuline has lots of reviews/high praise. But dorman was 9$ and has worked flawlessly for me. Both same 76mm diameter but dorman is a bit wider so belt rides perfectly centered with plenty of space on either side don’t have to worry about belt jumping or sliding off.
then you'll want to pair either pulley with K061020RPM this would probably be the best combination.
RPM belt is much stiffer and the grooves don't have as much space/width so it really bites and grabs hard and right away. Eliminates any belt slip and helps on throttle response.
Awesome thanks. Is the RPM the blue belt people talk about? Interestingly, the idler pulley that came with my kit is metal..not plastic like many others here seem to have. Perhaps it's already upgraded? I'll measure it and see how wide it is.

The other thing that is interesting to me is that when I bought the kit, from Toyota.. they asked me if my car was auto or manual. I said manual but why would that matter? They responded that auto's tend to throw the belts. But that doesn't make any sense to me.
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Old 11-20-2019, 09:23 PM   #8730
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Awesome thanks. Is the RPM the blue belt people talk about? Interestingly, the idler pulley that came with my kit is metal..not plastic like many others here seem to have. Perhaps it's already upgraded? I'll measure it and see how wide it is.

The other thing that is interesting to me is that when I bought the kit, from Toyota.. they asked me if my car was auto or manual. I said manual but why would that matter? They responded that auto's tend to throw the belts. But that doesn't make any sense to me.
No RPM belt is different. It is made specifically for superchargers.
Sprintex kit requires a few minor changes for install on autos involving re routing brake booster and relocating TCU, otherwise no different.
You bought a sprintex SC kit from Toyota?
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Old 11-20-2019, 09:28 PM   #8731
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Sure did. I thought it was really strange that they didn't want me to have it if it was auto because it would throw belts. That just makes no sense. I even have the convo check it out:

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Old 11-21-2019, 04:05 AM   #8732
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So this is the idler pulley that came with my kit. It's 70mm with a 33mm width, and metal.



and.. can nobody tell me what this is for?? It was in the kit with the weird note I mentioned before. But isn't mentioned in the instructions.
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Old 11-21-2019, 08:43 AM   #8733
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Quote:
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So this is the idler pulley that came with my kit. It's 70mm with a 33mm width, and metal.



and.. can nobody tell me what this is for?? It was in the kit with the weird note I mentioned before. But isn't mentioned in the instructions.
That may not be the stock idler pulley, I have never heard of Toyota dealer supplying this kit before, perhaps they made a few revisions to try to help solve any belt issues. Especially since they said they had issues before, the normal stock idler is 70mm daim 27mm wide, the dorman i listed before is 76mm diam and 33mm wide. but your measurement in the picture shows it is 27mm wide? as you are starting on the 5mm?

That cover looks like a pulley bearing cover used to keep sand/dirt out of the bearings in the pulley, it does not go to the normal sprintex kit, although again may be supplied by Toyota with that new pulley to try to solve some sort of issue. It would typically go just as the picture illustrates in between bolt and pulley.
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Old 11-21-2019, 02:01 PM   #8734
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The picture shows it’s 33mm wide. This is what came in my kit. That weird cover.. it’s not in the instructions and the slip of paper that came with it doesn’t really match either. Talks about replacing a plastic cover. In anycase I tried fitting it and it fouls on the idler so it’s not right I’ll just leave it off. Yeah Toyota sells this kits here, I live in New Zealand tho.
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Old 11-22-2019, 06:53 AM   #8735
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What RPM is everyone idles at? I'm having my tuner make my idle a bit higher, maybe to 1100. I'm hoping that it wouldn't damage the car doing so. Reason being is that the RPM dips when I brake and having a higher idle fixes my fuel trim issues.
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Old 11-22-2019, 07:29 AM   #8736
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I think with a that high idle you could have problems activating vvt
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