Opinions on the DSX E-85 Auxiliary Kit - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

U LUZE · 08-01-2018, 09:41 AM

Hey guys. I'm thinking about pulling the trigger on E-85, specifically the DSX auxiliary pump. I've done a bunch of reading and research on it and it seems like a decent kit for the money. Has anyone done it that regrets doing it or am I pretty safe in going this route? The Squash/Fore systems are not in the budget any time soon.

JB'sZL1 · 08-01-2018, 11:59 AM

It's fine if you want to limit yourself to 650-700hp. I wouldn't trust it beyond that...then you go with Squash or Fore and likely new rails.

beersngars · 08-01-2018, 01:12 PM

Quote:

Originally Posted by JB'sZL1

It's fine if you want to limit yourself to 650-700hp. I wouldn't trust it beyond that...then you go with Squash or Fore and likely new rails.

Lots of guys go way past 650-700 myself included. I am running E85 and am at 729 rwhp and the fuel pressure is rock solid at 70psi. From my reading and talking to guys putting down way more hp than me, I would say the max is around 900-1000. Do some DD and go which ever way you feel comfortable. Better yet give Dave at DSX a call. Very smart guy and seems to be a straight shooter.

JB'sZL1 · 08-01-2018, 01:20 PM

Quote:

Originally Posted by beersngars

Lots of guys go way past 650-700 myself included. I am running E85 and am at 729 rwhp and the fuel pressure is rock solid at 70psi. From my reading and talking to guys putting down way more hp than me, I would say the max is around 900-1000. Do some DD and go which ever way you feel comfortable. Better yet give Dave at DSX a call. Very smart guy and seems to be a straight shooter.

I'm not going to disagree with you, but epic failures happen with a loss of fuel at high rpm's. And then there is the chokepoint at the fuel rails that the DSX does not address. I was looking at the DSX, but decided to go with Fore rails and pump for a little more money to circumvent any possibility of a lack of fuel.

HOJO · 08-01-2018, 02:28 PM

This may be of some help.

https://www.camaro5.com/forums/showt...sx+fuel+system

DSX Tuning · 08-01-2018, 02:45 PM

Quote:

Originally Posted by JB'sZL1

It's fine if you want to limit yourself to 650-700hp. I wouldn't trust it beyond that...then you go with Squash or Fore and likely new rails.

Quote:

Originally Posted by JB'sZL1

I'm not going to disagree with you, but epic failures happen with a loss of fuel at high rpm's. And then there is the chokepoint at the fuel rails that the DSX does not address. I was looking at the DSX, but decided to go with Fore rails and pump for a little more money to circumvent any possibility of a lack of fuel.

There are a lot of people out there making 800-900whp on ethanol without issue using the aux pump system. There's no loss of pressure at high rpm unless people are leaving the FPCM completely stock, which is fully editable by HP Tuners and has been for a while now. I think the highest I've heard was a guy doing about 1000whp, and at that point, he started to see some pressure drop into the 60s (he was spraying a lot of nitrous and pulling from the rail).

The factory fuel rail is also not a significant choke of fuel supply to the injectors. I'm not sure where the misconception originated from that a 3/8" fuel rail isn't big enough, but realistically, you can put 1000+ whp on ethanol through that stock fuel rail and not run into an issue. It can handle the pressure and volume without concern. The only problem with a stock rail in my opinion is people trying to run a huge shot of nitrous and pulling the fuel off the rail.

Crash76 · 08-01-2018, 03:48 PM

I run the dsx w/ 80% ethanol, id1050x, 23% lower, LTs, Cam, etc etc... fpcm edited, 70% duty cycle, 70psi ... no issues. Great system, Great tune from Dave

Even installed it myself... with the flex fuel kit

U LUZE · 08-01-2018, 04:14 PM

Thanks for the input. I'm really leaning toward this kit if I do the E-85 route. I really don't think I'd go much more beyond that so my thought is that the 1050 injectors and supporting mods would be ok.

olblue75 · 08-01-2018, 09:24 PM

What is the Litre per hour flow rate for the aux fuel pump?

d454brisson · 08-01-2018, 10:07 PM

Who is providing the fpcm programming now? no one i talked
to wants to do it via swap or on bench so if you are trying to do e85 as a DIY you are stuck with Fore or squash which drives the price point per hp up considerably

Is it just one variable in the fpcm

max fuel pressure?

blake-b · 08-01-2018, 10:56 PM

Quote:

Originally Posted by d454brisson

Who is providing the fpcm programming now? no one i talked
to wants to do it via swap or on bench so if you are trying to do e85 as a DIY you are stuck with Fore or squash which drives the price point per hp up considerably

Is it just one variable in the fpcm

max fuel pressure?

Dave (DSX) does
https://www.camaro5.com/forums/showp...86&postcount=3

DSX Tuning · 08-01-2018, 11:10 PM

I have offered it for direct purchasers, but anybody with HPT can edit it now, so I don’t really offer it because it can be a hassle.

The aux pump itself flows about 210lph at 500kPa.

blake-b · 08-01-2018, 11:36 PM

Quote:

Originally Posted by DSX Tuning

I have offered it for direct purchasers, but anybody with HPT can edit it now, so I don’t really offer it because it can be a hassle.

The aux pump itself flows about 210lph at 500kPa.

Dave did...

beersngars · 08-02-2018, 06:16 AM

Dave did mine.

08-01-2018, 09:41 AM	#1
U LUZE Drives: 2012 ZL1 Join Date: Jul 2017 Location: Southeast Minnesota Posts: 118	Opinions on the DSX E-85 Auxiliary Kit Hey guys. I'm thinking about pulling the trigger on E-85, specifically the DSX auxiliary pump. I've done a bunch of reading and research on it and it seems like a decent kit for the money. Has anyone done it that regrets doing it or am I pretty safe in going this route? The Squash/Fore systems are not in the budget any time soon. __________________ ~ 2012 ZL1 - DynaTech 1 7/8" Headers - ID 1050 Injectors - E85 - DSX Aux Pump - 22.5% Crank Pulley - Roto-Fab CAI w/ Big Gulp- CJ/Jannetty Tuned ~ PB ET 10.54

08-01-2018, 04:14 PM	#8
U LUZE Drives: 2012 ZL1 Join Date: Jul 2017 Location: Southeast Minnesota Posts: 118	Thanks for the input. I'm really leaning toward this kit if I do the E-85 route. I really don't think I'd go much more beyond that so my thought is that the 1050 injectors and supporting mods would be ok. __________________ ~ 2012 ZL1 - DynaTech 1 7/8" Headers - ID 1050 Injectors - E85 - DSX Aux Pump - 22.5% Crank Pulley - Roto-Fab CAI w/ Big Gulp- CJ/Jannetty Tuned ~ PB ET 10.54

08-01-2018, 09:24 PM	#9
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	What is the Litre per hour flow rate for the aux fuel pump? __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

08-01-2018, 11:59 AM	#2
JB'sZL1 Drives: 2013 ZL1 and 2019 Ram Laramie Join Date: May 2017 Location: Milwaukee Posts: 1,259	It's fine if you want to limit yourself to 650-700hp. I wouldn't trust it beyond that...then you go with Squash or Fore and likely new rails.

08-01-2018, 02:28 PM	#5
HOJO Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013 Location: Fort Wayne, IN Posts: 874	This may be of some help. https://www.camaro5.com/forums/showt...sx+fuel+system

08-01-2018, 03:48 PM	#7
Crash76 Team 913 Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015 Location: USA, Central CA Posts: 1,119	I run the dsx w/ 80% ethanol, id1050x, 23% lower, LTs, Cam, etc etc... fpcm edited, 70% duty cycle, 70psi ... no issues. Great system, Great tune from Dave Even installed it myself... with the flex fuel kit

08-01-2018, 10:07 PM	#10
d454brisson Drives: 2014 ZL1 Join Date: Jul 2016 Location: Baltimore MD Posts: 345	Who is providing the fpcm programming now? no one i talked to wants to do it via swap or on bench so if you are trying to do e85 as a DIY you are stuck with Fore or squash which drives the price point per hp up considerably Is it just one variable in the fpcm max fuel pressure?

08-01-2018, 11:10 PM	#12
DSX Tuning Drives: 2019 Corvette ZR1 Join Date: May 2017 Location: St. Louis, MO Posts: 313	I have offered it for direct purchasers, but anybody with HPT can edit it now, so I don’t really offer it because it can be a hassle. The aux pump itself flows about 210lph at 500kPa.

08-02-2018, 06:16 AM	#14
beersngars Account Suspended Drives: 2012 ZL1 Join Date: May 2017 Location: Ohio Posts: 140	Dave did mine.