Hi everyone,

I've researched this and did not find definitive concrete answers

For those who converted to conventional turbos, when does the stock system begin to lack and need improvement?

Assuming running the customary ID1000 or ID1300, running only gasoline and racegas no ethanol.

Lets discuss.

 

~700whp on Ethanol, 20% more on gas? Best guess.

 

So around 850whp .... What are the most common solutions. Surg tanks and external pumps are not practical.

I wish guys who done this would share their setups here.

 

Depends on how much power you want.

A little more? Third booster pump maybe.. BAP probably.

I started with a SRM dual pump and after endless modifications, it works great now to 1200rw on E85.

Hindsight? I probably would have done a custom surge tank and not touched the stock tank. But it is nice now that it works great.

 

I made 897Rwhp on stock fuel system only injectors, I did not have any drop in fuel pressure. I switch to SRM brushless setup for my new setup.

 

Hey Jordon,

I dont think i will venture too far beyond 1000whp as Im on stock pistons and 10mm studs, but would be mice to build a system with a bit of headroom, maybe 1200whp on racegas, ethanol is not available here.

Im leaning towards the 3 pump solution with a hobbs to avoid a sexond fpr, but how reliable are the stock units going forward? 8-9 year old now. Dual 450's another option but a bit more tricky to setup.

What difficulties did you run into with the SRM system? Did you go with the brushless pumps or the 450's.

Always nice to have your input

Cheers

 

Reassuring thanks, may I ask what turbos and boost was that at?

 

I think pretty much everyone is running the SRM brushless for more power than stock. There are quite a few issues with it in terms of it not really being a complete well thought out kit. You will need to experiment with things in order to get it working flawlessly.

I'd give you the whole run down but I didn't install it.

Out of curiosity - Jordon / Swole, how long does it take for your pumps to prime when you key on the ignition?

 

More info -

There are a couple of options coming soon. Injector Dynamics is working on a GTR targeted brushless setup which may be adaptable, and Wayne/ISC is working on something as well.

With a Syvecs/Motec/ProEFI you could even use a Holly brushless setup, basically anything with a CAN controller will work.

 

The lines will probably be a restriction at that point, which means you need even more pump to over come pressure loss in the line.

You could always try it, and stop when you start losing FP. its cheap/easy to add a third pump/BAP.

Rix,
I use standard Walbro pumps, + BAP on the second pump. primes instantly.

 

The kit should be complete (other than no fuel line/electrical to stock components). For someone running enough power to require the brushless setup, I would expect they would have basic wiring and fuel knowledge.

My pumps take 1-2 seconds to prime.

 

Alpha 30's with 28lb of boost, was going to turn it up more but decided to build the motor and go bigger turbos.

 

@Powell - Wow big boost for the stocker, big ballz u got sir.


@Jordon - good point with the lines. Better strategy to go with -8AN feeds and -6AN returns.

What inline filter and regulator would you guys reccomend?

A brushless setup is way overkill for my goals, twin 450's staged like stockers with the No.1 pump feeding both jets through a restrictor and the No2 high level pump feeding the rails only. Should work, in theory atleast.

 

i have seen stock pumps do 750whp on E85 and 900whp on race fuel with upgraded injectors only.

 

So guessing thats around 28-29 psi on 30's and race fuel ...


Any idea if whether the stock pump relay is triggered by ground or a 12V signal?