Im upgrading my in tank pump to an e85 walboro 400. Do i need a fpr or anything else to make this work?


And for those that dont know i am adding a lsj fuel rail with stock lsj injectors to the runners of my ttr intake manifold. Fuel system should be good for ~700hp. And if i ever do run out of fuel i can always get bigger injectors

 

Seriously nobody can answer this? Who has replaced the in tank pump?

 

Sub for info, might do a similar setup with the stock intake, 2.1l with pt6262.

 

Have you figured out what your problem was yet? I would figure the problem out before putting more $$ Chris.

 

I'll fix that either way payam. And either way i'll need a larger pump. Im hoping to have my issues fixed this weekend. If not then the first week of january. Im on vacation both weeks and will have time to poay with it

 

Japeatr says it should be internally regulated by your stock fpr, unless doing a return style on the Lsj rail

 

I hadnt intended on doing a return on the lsj rail. I dont think its needed but not 100% on that. I was just going to weld a -6 fitting onto the rail and run a short -6 line from the rail and use a -6 to -4 to connect it to the fuel line just before the hpfp (which is -4 for those that didnt know)


Would a return system be needed or beneficial? And how so? I know very little regarding fuel systems so the input is appreciated

 

How are you going to control the extra injectors?

 

I'd love to know that as well unless he plans on going standalone. Which hasn't been done on an lnf yet. It would be possible to maybe use the new lt1 pcm and combine the LT1 engine harness with the LNF one. That would be very beneficial. Possibly work as well. Using a v8 pcm to control 8 injectors.

 

He doesnt NEED a stane alone or PCM hybrid. He could just use and SDS SIC or similar secondary injector controller.

 

uhhhh, no thanks. You would run into dozens of differences that would make this difficult. Maybe the biggest- how would you control the cams? Or before you get to that, you can't drive port injectors with DI drivers.

 

You can actually use our 5th injector controller. We have run 4 injectors off it before.

 

Im using a devils own progressive controller. I think that its pretty similar to the one in zzp's 5th injector kitIf it doesnt work properly then i'll try a split second additional injector controller. I have the devils own from my 5th injector setup so i figured id try it first

 

We do not use a meth controller in the 5th inector kit. The duty cycle curve is way off for what you need to run additional injectors.

 

Well it has worked in 5 or 6 instances that i personally know of just fine.

Btw....Looks strikingly similar to me

 

In for discussion

 

I didn't say it won't work. A meth controller will physically cycle the injector and add fuel to the intake charge. The downside is the accuracy and tune-ability.

Yes they look similar. They are nearly the same on the outside. The differences are in the electronics. Using our MAP based injector controller was already better than using a meth controller. More importantly, our switch to a MAF based unit improved the transition and tuning even more.

 

Gotcha. Willing to sell me a controller or tell me where i can buy one? Ive searched the net to no avail

 

Our controller is programmed to our specifications. We are the only ones that have this particular controller. We could probably sell one separate.

 

Can that controller control more than one injector?

Chris, why not try the new injectors they have on their site. It's pretty cheap too considering the price of other injectors on the market etc.

 

Yes. I have run 4 off it without issue.

 

That would be the best bet instead of a 5th injector. It would be still cheaper to just try out the opel than to fabricate your own rail and injector set welded to a mani etc.

 

I'm gonna be doing both...gonna need all the fuel I can get lol