Which fuel system would you use if building for the GTM STG 5 kit, but only wanted to run the STG 3 (3071R .64 A/R w/ .800 BAR (11.603 psi wastegate spring) for now?

I will be using the Haltech platinum so I'll have a lot of configuration flexibility. I just need to figure out which injectors, fuel rail return system, in-tank pumps, etc. to work well with the GTM STG 3 kit but also work for the STG 5 kit down the road...

 

Fuel system

CJM Stage 2
CJM Twin pump assembly
1000cc injectors I suggest DW but don't know if they make them that big

 

the gt35s would need a triple pump and 1200cc injectors.

but ya def the hardlines CJM stage 2

 

Not sure which Stage the GT35r's are at, but I just spoke with Sam at GTM. He said for the S3 setup (3071R .64 A/R, .800 BAR), I will need:

• Dual fuel rail return system
• Single-pump Walbro for ~600whp, dual in-tank pump for reliable 650 or higher whp
• 1000cc injectors

He mentioned that the dual pump and 1000cc injectors would work fine with the S5 kit as well. He never mentioned the triple fuel pump and said the 1200cc injectors are overkill. So maybe the GT35r's are Stage 6?

 

The GT35r is their stage 6........

 

Cool, makes sense then. What's the price difference between 1000cc and 1200cc injectors? And what's the price delta between the dual- and triple-in-tank pumps?

Would the 1200cc and triple pump fuel systems work okay for daily streetability using the Haltech platinum?

 

ahh ya, the stage 5 is still a gt30 turbo. wouldnt make much sense to get a 3071 and then swap to 3082 for the difference in price. start with the 3082 just like Blackbird is doing.

at that size, the price difference is negligible. the dual and triple pump hangers are completely different. but if you wanna run 800+, i'd go right for the triple. otherwise the dual pump is fine. i wouldnt even think of doin a 600+ hp car on a single walbro. another 800$ is pennies when you are riding on the ragged edge of fuel delivery.

 

I'm kind of stuck on the twin vs. triple fuel pump setup. I found the CGM twin-Walbro pump and it's like $800. I couldn't find a matching triple-Walbro setup though. Am I looking in the wrong place?

For a triple-setup would I just get a triple-pump hanger and buy three standalone Walbro pumps? Just trying to figure out why they offer a dual-pump config but not a triple.

Thanks!

 

googling "350z triple pump" and i got results in seconds. not sure why you couldnt find anything????

http://www.importpartspro.com/spratrpuha03.html

 

I found that link too. The only confusion for me is that it appears to be a hanger and not a fuel pump assembly. Which is why I'm trying to figure out if there's a product similar to the CJM Stage 3 Walbro twim-pump assembly, that has 3 pumps rather than 2.

It seems like a triple-pump setup is going to be more of a custom configuration than an off-the-shelf product...

 

Go over to my350z and pm this guy...he has the triple "thom000001".....

He will tell you what you need to know.

 

u just drop the pumps in and transfer the float over from the stock basket. same as u do for the dual pump. neither are drop in and go.

 

The CJM assembly (see link below) has the pumps integrated, which is not quite the same as the hanger. The triple hanger had no pumps at all. Anway, CJM claims this twin pump is pretty much plug and play. Check out this quote from the product page for the twin pump:

"Our assembly is plug-and-play with the OEM siphon system."
[Source - http://cj-motorsports.com/catvqtwins.htm]

So, as you can see, the CJM twin setup is pretty much a drop-in. I can't find a triple setup that can say the same...

 

Why do you feel you will need 3 pumps?? I will still be running twins

 

I just want to ensure I'm adequately built for Stage 6. I've read on some sites the dual-pump setup will get you to about 1000whp tops. Maybe that's inaccurate...

I'd love if I only had to get the double pump setup. Save me a little money, anyway...