Anyone used this intake as a subsitute for tpi, but kept kept the ECm and engine management?

http://www.edelbrock.com/automotive_...fi_chevy.shtml

 

I click the link and see multiple intakes...

but to answer your question yes you can use any of the sbc EFI intakes and keep stock ECU and sensors/etc. I use the edelbrock victor E EFI intake on my car. Just convert to an elbow with LS1 throttle body. Need TPS and IAC sensors from an LS1 car and the wiring pigtails. They splice right in.

The Pro-flo XT is just like the stealth ram except set up for LS1 style throttlebodys

 

I agree.

I have the XT on my 86 y-body. Everything spliced right up and FAST sells adapters for $10 if you want to avoid cutting wires.

Fuel, you are on your own to adapt from the stock metric o-ringed to AN lines.

 

http://www.summitracing.com/parts/RUS-648060/
http://www.summitracing.com/parts/RUS-648070/

 

Did F-bodies have the 16mm in and 14mm outlet or were they like later Vettes and both 16mm? Either way make sure.

Also, check and see what the ends of the rails are if you get the Edelbrock pieces. The XTs were NPT thread (aka stupid if you have AN fittings) I THINK that you could pick up Holley's stuff and they have 6AN threads in the rails, that would be much better than NPT crap. I believe the injector spacing and bolt spacing is the same, but I am not entirely sure. However if need standoffs/mounts/spacers for the rails to the Edelbrock manifold they may only sell them with their rail kit.

 

Edelbrock rails are 3/8" NPT
You still have to put a fitting in there for the -6 line so it makes little difference what type you use

The common NPT fitting
http://www.summitracing.com/parts/EAR-981666ERL/

is half the price of a AN fitting

http://www.summitracing.com/parts/EAR-985006ERL/

 

Yep, NPT not SAE, my slip up.

I'm just saying, after doing it, that I think it is dumb to go to an aluminum fuel rail (Edelbrock) with a tapered pipe fitting when the line is already AN because I view NPT as a less desirable piece than AN fittings. Like I said, fuel is up to the poster on how they'd like to run it.

If $ is an issue, Fragola has the same 3/8 NPT to 6AN fittings for $1.95 from Summit (very similar to Aeroquip, all steel, which I didn't like in an Aluminum fuel rail...)

Or spend an extra buck and get the -6 AN to -6 AN for $2.95 instead and then you don't have to worry about cracking fuel rails and teflon thread sealant like you would with NPT. Need o-rings, pick up a pack of viton o-rings for a couple of bucks. Most o-ring fitting accepting rails/regulators I've seen have worked fine with a male-male AN fitting with an o-ring added on despite having the tapered nose.

This becomes much more valuable when you start working with hose routing in tight spaces, rail mounting regulators, etc. (To clarify, AN fittings are shorter than the NPT counterparts (AN to NPT vs AN to AN) and also you don't have to worry so much about torquing the AN parts as you would with NPT stuff, which means as you work setting up a system rotating lines/rails/regulators you don't have to sweat worrying about leaks like you would with NPT stuff slightly backing up and pissing fuel at high line pressures.)

Its an opinion, but I won't use NPT rails in the future if I have a choice. But to each their own.

EDIT: If you really want to save money, go down to the local hydraulics shop and ask about JIC fittings. I have never used them on EFI, 50psi+ setups but I have heard that they while steel, they are "compatible" and "comparable" with AN fittings. I think the tolerances are not as tight and the thread pitch varies some small degree but the flare is the same. I've also heard that JIC fittings are often sold as AN stuff, so who knows?

 

http://weislake.com/sig/mucker/an-vs-jic.pdf

Been over this one a few times. Good read.

As far as fuel rails go, every rail I ever bought had 3/8" threads. Never had a problem, and I've had a lot of rails over the years


-- Joe

 

I don't see a problem; if you run a remote reg like I am you are stuck with NPT there anyway.
All my NPT fittings are installed once ( tight ) and never touched again; I only disconnect the AN lines
FWIW
I have a HSR with -AN rails and a Victor E with NPT

 

Man. I haven't bought braided hose in a while. This stuff got expensive.

I need to run a feed and return to a sumped tank. Probably 40 feet total huh?

Ugg!

-- Joe

 

I think I had 15ft each size -6 and -8 to do my feed/return lines from top of tank and the fuel rail crossover, and had plenty left over... 40ft is alot of line I know i have 15ft of size 4 copper wire from the alternator to the battery in the trunk. These cars arent that long

 

Yeah, like I said. To each their own. I just didn't like running NPT. Especially having to torque in a steel fitting (the aluminum one I had purchased leaked) into an aluminum fuel rail.

I run a rail mounted regulator (Aeromotive ,Kirban is o-ring AN too) with 6 AN, the only NPT on my whole setup is going into the rail. I also did a Ford setup with 6AN Vortech rails, it was just much easier IMO. More compact and no worries on torque with steel fittings in aluminum rail.

I'm not saying you can't use NPT, just saying if I could do it again (and get the holley rails) I would. Not saying NPT is wrong though.

Joe, I ended up using the summit stuff. So far so good.