10% pulley mod question.

dbvettez06 · 06-05-2020, 01:15 PM

Thinking of doing a pulley mod. Have a Roto Fab intake and axel back exhaust.
Questions. Will this throw codes? How hard is it to do? What gains would I expect WITHOUT a tune. Thx in advance.

JonDaddy82 · 06-05-2020, 01:28 PM

Can't do it without a tune buddy.

CW3SF · 06-05-2020, 05:34 PM

It actually might be possible. OP location says Colorado. At altitude cars run richer.

You’d need to get it on a dyno immediately following the install and see what your AFRs look like. They probably won’t be great and it probably won’t work, but it IS possible. Please post your altitude and your results.

crosive · 06-05-2020, 05:42 PM

Quote:

Originally Posted by CW3SF

It actually might be possible. OP location says Colorado. At altitude cars run richer.

You’d need to get it on a dyno immediately following the install and see what your AFRs look like. They probably won’t be great and it probably won’t work, but it IS possible. Please post your altitude and your results.

I wouldn't try it. too expensive of a mistake to "try". But then again, I'm not much of a gambler.

CW3SF · 06-05-2020, 06:28 PM

Quote:

Originally Posted by crosive

I wouldn't try it. too expensive of a mistake to "try". But then again, I'm not much of a gambler.

I want somebody else to try it so I’ll know if I can do it. LOL.

crosive · 06-05-2020, 06:29 PM

Quote:

Originally Posted by CW3SF

I want somebody else to try it so I’ll know if I can do it. LOL.

that's wrong on so many levels. I'm not saying I don't agree, it's just wrong

SJFGTO · 06-06-2020, 05:06 AM

Quote:

Originally Posted by CW3SF

It actually might be possible. OP location says Colorado. At altitude cars run richer.

You’d need to get it on a dyno immediately following the install and see what your AFRs look like. They probably won’t be great and it probably won’t work, but it IS possible. Please post your altitude and your results.

^^^Don’t take this post seriously.^^^ You will need a tune, period.

CW3SF · 06-06-2020, 07:17 AM

Quote:

Originally Posted by SJFGTO

^^^Don’t take this post seriously.^^^ You will need a tune, period.

Yes, don’t try it without a competent tuner checking your tune, and be prepared to either remove it or get the car tuned. I still believe it is possible that it could work at altitude but it also may not.

Markoz28 · 06-06-2020, 08:05 PM

Get a tune.

Juiced1 · 06-07-2020, 01:41 PM

A tune is required when adding that type of power. The overdrive balancers are probably a bit easier to install then a blower pulley. On the blower pulley you need a special puller to get the stock one off and a press to get the new hub on. The balancer just requires a balancer removal tool which can be rented at autozone or somewhere similar.

06-05-2020, 01:15 PM	#1
dbvettez06 Drives: 2001 corvette Z06. 2018 ZL1 Join Date: Jan 2018 Location: western colorado Posts: 90	10% pulley mod question. Thinking of doing a pulley mod. Have a Roto Fab intake and axel back exhaust. Questions. Will this throw codes? How hard is it to do? What gains would I expect WITHOUT a tune. Thx in advance. __________________ 2018 ZL1. Axel back and Roto Fab CAI 2001Z06 blown forged 740 hp 2004 ZR1 #100 1989 Turbo TA 1995 Firehawk supercharged 1977 Trans Am 1970 Z28 1970 Charger RT Auto 1969 427 Vette 1966 & 1969 Olds 442

06-05-2020, 01:28 PM	#2
JonDaddy82 Drives: 2018 ZL1 Coupe NFG M6 Join Date: May 2017 Location: Nolensville, TN Posts: 618	Can't do it without a tune buddy. __________________ 1989 Forumla 350 WS6 <- High School 2000 Trans Am Firehawk <- After High School 2017 Colorado Z71 <- Daily 2018 ZL1 M6 <- Not Daily

06-05-2020, 05:34 PM	#3
CW3SF Drives: 2019 Chevy Camaro ZL1 M6 Join Date: Jul 2019 Location: Sea level Posts: 1,252 View My Garage	It actually might be possible. OP location says Colorado. At altitude cars run richer. You’d need to get it on a dyno immediately following the install and see what your AFRs look like. They probably won’t be great and it probably won’t work, but it IS possible. Please post your altitude and your results.

06-06-2020, 08:05 PM	#9
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	Get a tune.

06-07-2020, 01:41 PM	#10
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	A tune is required when adding that type of power. The overdrive balancers are probably a bit easier to install then a blower pulley. On the blower pulley you need a special puller to get the stock one off and a press to get the new hub on. The balancer just requires a balancer removal tool which can be rented at autozone or somewhere similar.

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