Well i'm going to give it whirl. I have a pair of track 1 heads and dont want to bother trying to monkey around and get my small *** ports on my holley tunnel ram lower to fit the ports on my heads

so ive decided to buy an intake with ports big enough to match them and convert the intake to EFI using some injector bungs and bar stock fuel rail.

I was just curious if anyone has ever attempted this themselves and can give me some pointers

thanks

 

The one thing is make sure you layout the injector angles and distance correctly. I have read on a few sites that convert them that is to watch for that.

From looking at it though it really doesnt look that hard to me to do. Just take your time

Steven

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Well, placing them correctly in the center of the port is obvious....and i have heard that angle plays a role in the "type" of injector you use ie bosch or pintle type

you happen to have those "sites" you speak of?

 

I´ve done this numerous times.
In fact i´m finishing one at the moment.
Like the guys say..nuthing much to it really.

Couple of things to have in mind;
1/Cut the holes for the bungs on a bridgeport.This will assure that the 4 holes per row are more or less in line at least.Think of it much like setting up nitrous nozzles.
2/Be careful when putting the TIG to the bungs.Heat involved will put a warp on the intake more often then not.Take your time,and weld a little at a time.Check EVERY flat surface for straightness when done.resurface as needed.
3/Your die grinder is your best friend
4/Appreciate the fact that it´s VERY hard to oversize injector rails,on the other hand it´s VERY easy to do the opposite-with FP fluctuations following suit.IMO we´re talking 5/8" inner dia minimum.
5/TWM makes for some nice looking FPR;s in all forms imaginable.In contrast to a lot of other crap floating around,they work.
6/Think BEFORE doing any cutting..*LOL*

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anybody have some websites for people that have done this? Then I'm guessing that you use a 90* elbow on top of the intake. What do you use for a throttle body? Thanks!

Chris

 

Yup, i am going to be using a precision elbow adaptor with a ford throttle body

i'm going to mill down the top surface of the victor junior and the bottom of the elbow and get it all to fit under my stock hood

In a thirdgen with the stock hood there is 9.75" of clearance for intakes total. That is with the hood insulation gone and some hood bracing mods

 

can you do this to pretty much any intake manifold? also that adaptor, is there other throttle bodies they could adapt it to? or did you find that the ford was the best option?

Chris

 

Go to www.madmanandcoracing.com/madmanscamaroupdates.html there are pics of the manifold we did. If you have any questions give me a hollar.

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another question...is it possible for you to do the conversion AND then run a direct port nitrous system tapped into the runners? or is that a point in which structural integrity might be compromised?

Chris

 

i've seen it done before, but most people run the system dry for easier conveinance

 

Accel used to make a adaptor to bolt up the GM style throttle body but it has been discontinued. Basically the ford is the only one i know unless you make your own

Yes you can pretty much convert any carb manifold to fuel injection, just make sure its a singleplane

 

pardon the ignorance, but how much is parts and labor on a the conversion?

Chris

 

A good machine shop that knows what they are doing would probably charge you in the $300 range and that is complete but no elbow

The cheap way to do it is the way i'm doing it:

Buy injector bungs: $40 from www.youngsperformance.com

Buy 2 feet of .500 bar stock fuel rail: $10 a foot from www.force-efi.com

Then just have the machinist throw it on a bridgeport and have him drill the holes in the intake for you. Keep the hole a little smaller than the injector bungs so you can ream out the hole a little so the bungs fit snug.

Take it to a friend to TIG weld the bugs in for you (Free in most cases if you know someone)

Take a die grinder and cut off the excess material left in the intake port and make sure you leave it flush with the roof of the intake port

Then take it back to the machinist and let him check the surface for straightness, when welding, you might have to get the intake milled a tiny bit to make sure its still flat

anything else ?

 

hahha, plenty....

wow, it's a lot less than i thought. I was picturing like $1000 or something. Anyways, for your TB, you had said you were using a ford TB. Is it a mustang one? are you using the EGR spacer as well or is it just the TB? How are you gonna run your air intake tubing? How you doing throttle cable?

Thanks again.

Chris