[69MyWay]

Okay - I explored this for a little while earlier this year when an Accel Gen VII DFI system fell in my lap - however, the complications involved in swapping over a perfectly good working 1986 TPI to that wasn 't worth it for the other expense.

So...been thinking though. Why can't I find a low rise four bbl style EFI intake - install it on the 86 Vette with a quality elbow allowing me to put the throttle body in nearly the same stock position...then hook it all up? I know the EGR would be off-line, but why won't this work..

AND - obtain the higher RPM that it lacks so badly????

Yes, you can slap a TPIS miniram on...or do a big mouth conversion, but both are very expensive.

Why spend $1,500 plus dollars on a $4,000 car?

I'm wondering if this could be done with some elbow grease and about $500.

The stealthram is too high and requires machine work, as well as the Edelbrock intake.

Why won't this work????

This style intake with a fuel rail conversion and stock injector swap

This on top modified to accept the throttle body

 

[69MyWay]

I've seen a few of those Edelbrock swaps - not too impressed considering some of the fitment issues and cost involved.

I'm not convinced that intake is too large for the stock engine.


Just a dang shame the new Pro-Flow wasn't designed in consideration of the C4 hood issues.

 

[69MyWay]

Okay....

Snow + Ice + un shoveled driveway...and the need...the need for speed after just putting new valve stem seals in the 86 = artyon:

Just took her out to make sure its all good - had my son with me, came back and turned the driveway into a figure 8 track for a few.

Anyway...looking at the rest of the winter project season and trying to figure out the potential of pulling this off and creating something inexpensive and un-ordinary that might pull a few more upper RPM ponies out of the machine.

 

[69MyWay]

Hey Vettoz....


Those are some awesome pictures.

The first one looks way too tall - but this is the idea.

I had seen a C4 on Corvette Forum that has this basic set up running, but can't find those pictures now.

Anybody can bust out the Visa card and make something happen - if I wanted to do that I'd slap a miniram on there.

What I want to do is poke and pick around to see what is out there along these lines to pull something together - small amount of $$$ - large amount of elbow grease...and NO hole cut in the hood.

 

[69MyWay]

Thanks Kubs...that's what I'm talking about!

I also wonder how tricky it would be to drill out a non-EFI 4BBL manifold for the injectors and adapt the stock rail. Now we would be talking about a whole weekend of Bubba engineering, some fittings...and super low bucks.

I was thinking if the rails were threaded where the cross tubes and regulator go in, that they could be plugged and just tap them on the back for the cross over and return. The accel FPR is really bulking and is going to take up a lot of space compared to the stock style.

I can add a bit to that in terms of parts. The 2000 or so trucks with the LQ engines have the same throttle body as the F body. I know because I have a LS1 in my 69 Camaro that I swapped a truck T/B for a while back.

Here is a big question though...the TPS is adjustable on the C4, and not on the LS style. Do you slot it out or something to make it work for the base idle set????

 

[69MyWay]

Hello beautiful!

That is EXACTLY what I'm talking about.

I wonder just how sharp the pencil could get on scraping that kind of deal together from used and hand made parts.....

 

[69MyWay]

Yup, just curious if 69MyWay had been considering any specific parts since he's trying to keep it on a DIY budget. Figured there'd be some good grabs on used or older style heads that could be picked up for a good deal. Just curious if he'd been looking around since he'll definitely need to do it for a top end build.

:thumbsup:

Nope, no plans for head/cam - none at all. That just brings a whole world of other headaches that are not worth the time and trouble for a car my wife is using.

The C4 is a fine machine, but due to the lack up higher RPM thrill...is feels well past its prime.

With the values of the cars in the tank - it is hard to justify spending any real coin on them as well unless it is just a labor of love. So, this is all about getting that upper RPM thrill (especially because this is a stick shift car) without killing the bank or making the car problematic with tuning/cam/head...vacuum...idle...etc.etc. issues that ALWAYS follow. Been there done that many times.

My last C4 we did for the magazine with the crate LS2 was PERFECT - however, if I were to duplicate that car today - just the MOTOR would cost more than the car - and that won't suit where I want to go with this.