JMS booster if you do. On pump 93 you should be ok. E85, you'll definitely need the booster.

 

Should be fine, you could also consider the DW300 pumps that go right into that bucket. 379 for two and you will have all you need.

 

AEM also has drop in 320lph pumps for the CTS-V module, might be worth checking out at ~$200. I stuck 310lph pumps in mine before these were an option and I'm at 90% duty cycle on e85 with 12psi

 

I went ahead and ordered the ATI 9.55" (22.5%) and the Lingenfelter idler reaction bracket. I've heard some people just don't like DW for one reason or another. Do any of you have any experience with their pumps? Are they plug and play with the vapor works kit? As for the booster, I would just end up replacing with a whole Fore return style system if I wanted to do e85; just for piece of mind. I already have the car wired for E85 but I would also need larger injectors probably ID1300.

 

Take a look at these

https://www.montmotorsports.com/aem-fuel-pump-set-of-2-drop-in-pumps-09-15-cts-v/

Also, FIC now has data for their injectors, might be worth considering for some cost savings.

http://fuelinjectorclinic.com/ls2

 

I run V pumps, Vaporworx controller, JMS booster, ID850's, and meth with @ E50. I'm over 800 rwhp, but at the limit of the injectors. I have the AEM pumps ready to go in, but waiting to find a set of ID1300's to swap everything at once then retune. Don't discount the JMS booster. It works great and is way less expensive than a Fore or Squash system without the fear of going below a third of a tank of fuel.

 

I would like to make power on pump alone whether its with E85 or 93, I never really liked the idea of meth. Thats why I would just go with a Fore system. What happens when you go below 1/3 tank?

 

interesting, well i will just have to wait and see where its at once i get the pulley on. hopefully i won't need them but its nice knowing that there are affordable options.

 

Well it went pretty well but apparently I'm out of fuel at 6200RPM but I usually rev out to 7200RPM so i want to do a cheap pump upgrade. Have any of you done the AEM drop in pumps?

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Head over to ctsvowner forum. Large thread about the AEM drop in pumps.

 

As I mentioned, I have them, but not installed yet. Will do injectors and retune at the same time. Are you on 93 now? How much boost? I bet if you did the AEM pumps, the JMS booster and went E85 you could pick up 50+ rwhp easy. Possibly closer to 100.

 

Yes, 93. It made 13 psi. There is no other special controller needed for running the AEM pumps other than the JMS booster? Thats what I'm thinking too. I don't really think i want to spin that blower any faster. It seems like a lot of people prefer the AEM pumps over the DW pumps? Why?

 

https://www.ctsvowners.com/forum/124-fueling/75369-aem-drop-fuel-pumps.html

 

Ive been reading through it since 7:30. I'm wondering if they are just a simple drop in with nothing else needed, other than maybe a retune.

 

I have AEM pumps in mine, but I did it before any of the drop ins were on the market. They've been working great for a few years now.

 

gotcha, so no other modifications needed except for retune?

 

check out this thread:

https://www.ctsvowners.com/forum/124-fueling/103098-anyone-try-aux-fuel-pump-intank-2.html

post 47

Your call if you need it or not -

 

Sorry for the late response gents.

I've tested both the DW300C and AEM pumps. The AEM's offer about a 25% increase in flowrate, the DW's 30%. Heavier duty wiring is highly recommended since it's a 30% increase in power to the pump module.

Here's another thing to consider. The GT280 terminals in the CTS-V, Camaro, etc. is rated for 25A max. In the standard G8/CTS-V arrangement the underhat wiring is modified to allow for both pumps to run off of two terminals instead of four. With the AEM and DW's it's going to exceed the rating. VaporWorx has a method to convert back to four cavity pump power and get the fuel level sensor signals out as well.

I've only needed to use both brands for testing so my experience with long-term durability would be just speculation.

The JMS voltage booster is a great option. When it feeds the VaporWorx controller only the power needed to drive the fuel module is sent and no more, so the power "hit" is minimized. The JMS will max out at 18.4v with stock CTS-V pumps as it does not have sufficient power to drive more voltage. The output voltage when used with AEM or DW pumps will be lower.

If the JMS booster is purchased from VaporWorx we will program it to work with the GM 3bar LSA sensor at no charge.