Camaro ZL1 boost question ???? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

*mlee* · 01-17-2015, 07:28 PM

Quote:

Originally Posted by chvlle383

i was thinking on the 9.55 for the lower and the 2.55 for the upper which from what i under stand is around 17 psi and spinning the blower at 24k…?

If you have headers you won't hit 17psi but that's a good combo. I went 8.1 and 9.55 and have about 11.5 psi

Quote:

Originally Posted by JamesZL1

I have a A6, see mods below. I recently found out that with the 2.5 Upper and the 9.55 Lower, My car was sucking the fuel lines dry. I am lucky that I did not blow up my motor, I did melt several plugs. If you try to do a pulley combo or go much above 600 RWHP, you will have to change out the fuel system. Right now I am trying out a Boost a pump from lingenfelter. I have had a lot of people tell me that will not fix my fuel issues, so I might have to upgrade to a Squash Fuel system or something compatible. make sure you keep an eye on that fuel pressure, it needs to be as close to 65PSI as possible,mine was falling to 40 and that is no bueno. Just wanted to throw that out there, This last upper pulley swap is costing me a lot of money now that I have to upgrade the fuel system.

Definitely need fuel injectors. They max out fast when you start modding the LSA.

Get some ID850's and be done with it.

JamesZL1 · 01-17-2015, 07:30 PM

yeah I am at 15lbs of boost with the 2" headers and a Cam.

chvlle383 · 01-17-2015, 07:32 PM

Quote:

Originally Posted by JamesZL1

I have a A6, see mods below. I recently found out that with the 2.5 Upper and the 9.55 Lower, My car was sucking the fuel lines dry. I am lucky that I did not blow up my motor, I did melt several plugs. If you try to do a pulley combo or go much above 600 RWHP, you will have to change out the fuel system. Right now I am trying out a Boost a pump from lingenfelter. I have had a lot of people tell me that will not fix my fuel issues, so I might have to upgrade to a Squash Fuel system or something compatible. make sure you keep an eye on that fuel pressure, it needs to be as close to 65PSI as possible,mine was falling to 40 and that is no bueno. Just wanted to throw that out there, This last upper pulley swap is costing me a lot of money now that I have to upgrade the fuel system.

i did think about that also, i was looking at the aeromotive a1000 stealth pump, its supposed to support 1,000 hp with forced induction….

JamesZL1 · 01-17-2015, 07:35 PM

I got an offer from Deatchworks here in OKC to try out one of their Dual Pumps....Flow rate looks good, if it works I'll have a review for everyone...Not sure how much boost the stock head gasket can take, so thats another issue to check out.

chvlle383 · 01-17-2015, 07:40 PM

Quote:

Originally Posted by JamesZL1

I got an offer from Deatchworks here in OKC to try out one of their Dual Pumps....Flow rate looks good, if it works I'll have a review for everyone...Not sure how much boost the stock head gasket can take, so thats another issue to check out.

maybe some cometics or something similar

CanadianZL1#992 · 01-17-2015, 07:48 PM

Quote:

Originally Posted by JamesZL1

I have a A6, see mods below. I recently found out that with the 2.5 Upper and the 9.55 Lower, My car was sucking the fuel lines dry. I am lucky that I did not blow up my motor, I did melt several plugs. If you try to do a pulley combo or go much above 600 RWHP, you will have to change out the fuel system. Right now I am trying out a Boost a pump from lingenfelter. I have had a lot of people tell me that will not fix my fuel issues, so I might have to upgrade to a Squash Fuel system or something compatible. make sure you keep an eye on that fuel pressure, it needs to be as close to 65PSI as possible,mine was falling to 40 and that is no bueno. Just wanted to throw that out there, This last upper pulley swap is costing me a lot of money now that I have to upgrade the fuel system.

My stock pump started losing pressure at 640 rwhp. Had a dual pump installed. It was good until just about 800 rwhp. Finally had to go with the squash

Baer383 · 01-17-2015, 07:59 PM

Quote:

Originally Posted by chvlle383

i was thinking on the 9.55 for the lower and the 2.55 for the upper which from what i under stand is around 17 psi and spinning the blower at 24k…?

If you shift at 6k you won't be spinning the blower to 24k.

CanadianZL1#992 · 01-17-2015, 08:04 PM

Quote:

Originally Posted by JamesZL1

I have a A6, see mods below. I recently found out that with the 2.5 Upper and the 9.55 Lower, My car was sucking the fuel lines dry. I am lucky that I did not blow up my motor, I did melt several plugs. If you try to do a pulley combo or go much above 600 RWHP, you will have to change out the fuel system. Right now I am trying out a Boost a pump from lingenfelter. I have had a lot of people tell me that will not fix my fuel issues, so I might have to upgrade to a Squash Fuel system or something compatible. make sure you keep an eye on that fuel pressure, it needs to be as close to 65PSI as possible,mine was falling to 40 and that is no bueno. Just wanted to throw that out there, This last upper pulley swap is costing me a lot of money now that I have to upgrade the fuel system.

If you think the upper pulley swap is costing you a fortune. Wait until you install a dual pump or squash system. Rear subframe has to be dropped to let the tank down. Whole day of labour or better. Plus the price of the pump.

chvlle383 · 01-17-2015, 08:11 PM

Quote:

Originally Posted by Baer383

If you shift at 6k you won't be spinning the blower to 24k.

ill be shifting higher than that

probably around 6800ish…..we will see when its on the dyno and where the power starts falling off...

Baer383 · 01-17-2015, 08:13 PM

Quote:

Originally Posted by chvlle383

ill be shifting higher than that

probably around 6800ish…..we will see when its on the dyno and where the power starts falling off...

My dyno peaked @ 6200 754 rwhp in my case no reason to really go higher.

chvlle383 · 01-17-2015, 08:15 PM

Quote:

Originally Posted by Baer383

My dyno peaked @ 6200 754 rwhp in my case no reason to really go higher.

cool, thats great…i guess ill see when i get it up there…..thanks….. was looking at the BTR stage 3 cam and a set of heads

Baer383 · 01-17-2015, 08:16 PM

Quote:

Originally Posted by chvlle383

cool, thats great…i guess ill see when i get it up there…..thanks

Good luck

chvlle383 · 01-17-2015, 08:18 PM

Quote:

Originally Posted by Baer383

Good luck

what cam do you ave in yours?

Baer383 · 01-17-2015, 08:19 PM

Quote:

Originally Posted by chvlle383

what cam do you ave in yours?

This one,

http://www.lingenfelter.com/mm5/merc...1#.VLsKMkfF-jM

01-17-2015, 07:30 PM	#16
JamesZL1 Drives: 2013 ZL1 A6 Camaro, 2015 C7 A6 Z51 Join Date: Apr 2014 Location: Oklahoma Posts: 396	yeah I am at 15lbs of boost with the 2" headers and a Cam. __________________ Roto-Fab CAI, Texas Speed Headers, Texas Speed X-Pipe, Texas Speed LS3-B Blower Cam, Metco 9.10" Crank Pulley, Metco 2.5 Upper Pulley, ID 850 Injectors, LPE Ported Throttle Body, Alky Control Methanol kit, E2 Catch Can, 610HP / 608 Torque.

01-17-2015, 07:35 PM	#18
JamesZL1 Drives: 2013 ZL1 A6 Camaro, 2015 C7 A6 Z51 Join Date: Apr 2014 Location: Oklahoma Posts: 396	I got an offer from Deatchworks here in OKC to try out one of their Dual Pumps....Flow rate looks good, if it works I'll have a review for everyone...Not sure how much boost the stock head gasket can take, so thats another issue to check out. __________________ Roto-Fab CAI, Texas Speed Headers, Texas Speed X-Pipe, Texas Speed LS3-B Blower Cam, Metco 9.10" Crank Pulley, Metco 2.5 Upper Pulley, ID 850 Injectors, LPE Ported Throttle Body, Alky Control Methanol kit, E2 Catch Can, 610HP / 608 Torque.