the 2.35 lpe pulley - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

The Baron · 11-19-2012, 03:05 PM

I run this on my caddy and was wondering why none of you guys that have modded your car have done it.. ITS WAY cheaper than the lower swap and is a true 15 pounds on its own (it screams). I see some guys doing the 2.55 and then the a 5-10% lower.. seems odd.

ace32x · 11-19-2012, 04:16 PM

Quote:

Originally Posted by The Baron

I run this on my caddy and was wondering why none of you guys that have modded your car have done it.. ITS WAY cheaper than the lower swap and is a true 15 pounds on its own (it screams). I see some guys doing the 2.55 and then the a 5-10% lower.. seems odd.

its press on and alot of the guys on here are going the no tune route so far, including myself. as far as the ones building doing lower and uppers i wondered that myself aswell why no one ran the 2.35 upper and 8.6 lower or 9.1 lower (not sure how efficient these blows are past 18 lbs)

flyingfortress1944 · 11-19-2012, 06:12 PM

Quote:

Originally Posted by The Baron

I run this on my caddy and was wondering why none of you guys that have modded your car have done it.. ITS WAY cheaper than the lower swap and is a true 15 pounds on its own (it screams). I see some guys doing the 2.55 and then the a 5-10% lower.. seems odd.

How muck power did it make. Dyno sheets please?

69NMYSS · 11-19-2012, 06:40 PM

Quote:

Originally Posted by The Baron

I run this on my caddy and was wondering why none of you guys that have modded your car have done it.. ITS WAY cheaper than the lower swap and is a true 15 pounds on its own (it screams). I see some guys doing the 2.55 and then the a 5-10% lower.. seems odd.

Did you have to change the injectors?

Stephen12ZL1 · 11-19-2012, 07:53 PM

at 13psi I am at limit with the stockers...15psi has to be an injector upgrade

The Baron · 11-20-2012, 02:17 PM

my v makes 577 on stock injectors. auto car, same setup on a manual car should be a hair under 600. 2.35 upper, zr1 cam, c.a.i..

there is NO reason that a pulley only (c.a.i) cant run on stock injectors..I talked to brent at LPE and he told me they have done a couple of cars with 18 pounds but it tends to be to high for 91 octane, which is all they une for up there because thats all they have.. i have 93 around here but i do tune my cars on 91 just encase wife gets junk fuel by accident..

and before anyone brings tuning into it, i agree.. but my v has 41000 miles on it, so i think if it was going to blow up, it would have done it by now..lol

i dont have dyno sheets ( i did not even know how much power it made until a few weeks ago, but i have DOZENS of timeslips..

i am doing this mod to the zl1 (just the pulley and c.a.i) and i will post those sheets i guess since its winter i have no other way to see how it stacks up against the caddy.

firecross91 · 11-20-2012, 02:24 PM

I'm doing the no-tune thing also. If(when) I descide to go bigger I can get just the crank pulley and the blower pulley. It will cost less that way and I will already have my SFI rated balancer. The common number I've seen is 700 rwhp with cam,crankshaft and sc pullies, injectors, 102 TB, withor without new heads. I would say that this is the limit of the stock SC.

The Baron · 11-20-2012, 02:28 PM

cost less than what? the upper 2.35 makes the same boost as a 2.55 and the 10% lower? The upper pulley swap costs about 300 bucks (including turning the snout down and installing the pulley) while the other way costs over a grand just in parts..

to each there own, i was just wondering why people were doing it this way.

firecross91 · 11-20-2012, 02:39 PM

I meant that it will only have to buy the balancer sc pulley, not the balancer and pulley. When you order a crackshaft pulley kit you get the acc, balancer and sc pullies.

firecross91 · 11-20-2012, 02:41 PM

I haven't seen anybody offering a no-tune sc pulley.

The Baron · 11-20-2012, 02:58 PM

Quote:

Originally Posted by firecross91

I meant that it will only have to buy the balancer sc pulley, not the balancer and pulley. When you order a crackshaft pulley kit you get the acc, balancer and sc pullies.

The 2.35 is 26% overdriven. To do a lower with that much overdrive you have to relocate your idlers.. i think.. pretty sure.

firecross91 · 11-20-2012, 03:02 PM

I'm not sure what % overdrive you can do without the idle relocation. I know the idlers are in the way when you get too big. The 2.35 seems to be a good option. I'm not sure what size I will be going with when I decide to upgrade again.

AdamCzap · 11-20-2012, 07:40 PM

9.1 is the biggest lower you can do without relocation. That's what Ted told me.

Stephen12ZL1 · 11-20-2012, 08:21 PM

Quote:

Originally Posted by The Baron

The 2.35 is 26% overdriven. To do a lower with that much overdrive you have to relocate your idlers.. i think.. pretty sure.

a 9.55 lower requires the lower idler to be relocated or smaller to clear the ring

11-19-2012, 03:05 PM	#1
The Baron Drives: 2013 zl1 Join Date: Nov 2012 Location: st louis Posts: 838	the 2.35 lpe pulley I run this on my caddy and was wondering why none of you guys that have modded your car have done it.. ITS WAY cheaper than the lower swap and is a true 15 pounds on its own (it screams). I see some guys doing the 2.55 and then the a 5-10% lower.. seems odd.

11-19-2012, 07:53 PM	#5
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,809	at 13psi I am at limit with the stockers...15psi has to be an injector upgrade __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

11-20-2012, 02:17 PM	#6
The Baron Drives: 2013 zl1 Join Date: Nov 2012 Location: st louis Posts: 838	my v makes 577 on stock injectors. auto car, same setup on a manual car should be a hair under 600. 2.35 upper, zr1 cam, c.a.i.. there is NO reason that a pulley only (c.a.i) cant run on stock injectors..I talked to brent at LPE and he told me they have done a couple of cars with 18 pounds but it tends to be to high for 91 octane, which is all they une for up there because thats all they have.. i have 93 around here but i do tune my cars on 91 just encase wife gets junk fuel by accident.. and before anyone brings tuning into it, i agree.. but my v has 41000 miles on it, so i think if it was going to blow up, it would have done it by now..lol i dont have dyno sheets ( i did not even know how much power it made until a few weeks ago, but i have DOZENS of timeslips.. i am doing this mod to the zl1 (just the pulley and c.a.i) and i will post those sheets i guess since its winter i have no other way to see how it stacks up against the caddy.

11-20-2012, 02:24 PM	#7
firecross91 Drives: ZL1 #1691 Black on black. Join Date: Jun 2012 Location: WNY Posts: 522	I'm doing the no-tune thing also. If(when) I descide to go bigger I can get just the crank pulley and the blower pulley. It will cost less that way and I will already have my SFI rated balancer. The common number I've seen is 700 rwhp with cam,crankshaft and sc pullies, injectors, 102 TB, withor without new heads. I would say that this is the limit of the stock SC.

11-20-2012, 02:28 PM	#8
The Baron Drives: 2013 zl1 Join Date: Nov 2012 Location: st louis Posts: 838	cost less than what? the upper 2.35 makes the same boost as a 2.55 and the 10% lower? The upper pulley swap costs about 300 bucks (including turning the snout down and installing the pulley) while the other way costs over a grand just in parts.. to each there own, i was just wondering why people were doing it this way.

11-20-2012, 02:39 PM	#9
firecross91 Drives: ZL1 #1691 Black on black. Join Date: Jun 2012 Location: WNY Posts: 522	I meant that it will only have to buy the balancer sc pulley, not the balancer and pulley. When you order a crackshaft pulley kit you get the acc, balancer and sc pullies.

11-20-2012, 02:41 PM	#10
firecross91 Drives: ZL1 #1691 Black on black. Join Date: Jun 2012 Location: WNY Posts: 522	I haven't seen anybody offering a no-tune sc pulley.

11-20-2012, 03:02 PM	#12
firecross91 Drives: ZL1 #1691 Black on black. Join Date: Jun 2012 Location: WNY Posts: 522	I'm not sure what % overdrive you can do without the idle relocation. I know the idlers are in the way when you get too big. The 2.35 seems to be a good option. I'm not sure what size I will be going with when I decide to upgrade again.

11-20-2012, 07:40 PM	#13
AdamCzap Drives: 18 zl1, 17 sierra denali Join Date: Sep 2009 Location: Detroit Area Posts: 471	9.1 is the biggest lower you can do without relocation. That's what Ted told me.