Bypassing the Rotrex - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

LS1M · 06-22-2023, 08:19 AM

My JRSC is sick, but I still need to get to work. Is there a way I can bypass it so it won't spin? I don't want to cause even more damage.

Thanks
-Mark

Grady · 06-22-2023, 11:39 PM

Put stock belt on and not go around the SC?

Muskoka800 · 06-23-2023, 11:38 AM

Quote:

Originally Posted by Grady

Put stock belt on and not go around the SC?

Surely you’ll need to go back to the NA tune as well.

LS1M · 06-23-2023, 01:28 PM

I looked it over & I think I can just remove the s/c, put the idler pulley back, and run off of the stock belt. If I don't touch anything else, I should be able to use the s/c tune. I mean, it'll just stay on the part of the map where there's no boost, right?

AussieBRZ · 06-26-2023, 08:48 PM

Quote:

Originally Posted by LS1M

I looked it over & I think I can just remove the s/c, put the idler pulley back, and run off of the stock belt. If I don't touch anything else, I should be able to use the s/c tune. I mean, it'll just stay on the part of the map where there's no boost, right?

Yes if it makes no boost you still fine on the SC tune

LS1M · 06-28-2023, 07:42 AM

Well, that was the most depressing Saturday ever.
Spent several hours making my car slower.
I was able to put some stock parts back & get it running while I send the blower back for a replacement.
I think it might be slower than stock now, since it has to suck air through all that tubing and the intercooler.

http://ls1m.com/demo/SCGONE1.jpg
http://ls1m.com/demo/SCGONE2.jpg

alphasaur · 06-28-2023, 12:58 PM

Quote:

Originally Posted by LS1M

Well, that was the most depressing Saturday ever.
Spent several hours making my car slower.
I was able to put some stock parts back & get it running while I send the blower back for a replacement.
I think it might be slower than stock now, since it has to suck air through all that tubing and the intercooler.

http://ls1m.com/demo/SCGONE1.jpg
http://ls1m.com/demo/SCGONE2.jpg

Just have lag now

CSG Mike · 06-28-2023, 05:54 PM

Remove rotrex assembly.

Replace stock pulley and belt

Replace stock intake

Flash stock rom.

Leave the intercooler and everything else in place, for minimum re-assembly/installation. Tape up/cover up all the hose/pipe openings so you don't get contamination.

06-22-2023, 08:19 AM	#1
LS1M Senior Member Join Date: Mar 2015 Drives: 2015 BRZ Location: Texas Posts: 100 Thanks: 18 Thanked 37 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Bypassing the Rotrex My JRSC is sick, but I still need to get to work. Is there a way I can bypass it so it won't spin? I don't want to cause even more damage. Thanks -Mark

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06-23-2023, 01:28 PM	#4
LS1M Senior Member Join Date: Mar 2015 Drives: 2015 BRZ Location: Texas Posts: 100 Thanks: 18 Thanked 37 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I looked it over & I think I can just remove the s/c, put the idler pulley back, and run off of the stock belt. If I don't touch anything else, I should be able to use the s/c tune. I mean, it'll just stay on the part of the map where there's no boost, right?

06-28-2023, 07:42 AM	#6
LS1M Senior Member Join Date: Mar 2015 Drives: 2015 BRZ Location: Texas Posts: 100 Thanks: 18 Thanked 37 Times in 27 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Well, that was the most depressing Saturday ever. Spent several hours making my car slower. I was able to put some stock parts back & get it running while I send the blower back for a replacement. I think it might be slower than stock now, since it has to suck air through all that tubing and the intercooler. http://ls1m.com/demo/SCGONE1.jpg http://ls1m.com/demo/SCGONE2.jpg

06-28-2023, 05:54 PM	#8
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,562 Thanks: 8,942 Thanked 14,211 Times in 6,854 Posts Mentioned: 970 Post(s) Tagged: 14 Thread(s)	Remove rotrex assembly. Replace stock pulley and belt Replace stock intake Flash stock rom. Leave the intercooler and everything else in place, for minimum re-assembly/installation. Tape up/cover up all the hose/pipe openings so you don't get contamination.

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