The edlebrock only requires slight grinding to fit. My concern with the setup you mention is will it be too much intake for a stock motor
Intake Swap...again - Early C4
2
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
![]()
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
1 - 20 of 27 Posts
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.
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.
3
There are off the shelf hats from custom makers that fit stock style TB to 4 bbl intake
Plenty have made their own custom hat to add some plenum volume
Or a low profile carb hat on a 4bbl TB
I know you want to keep the stock hood, but I am doing something similar. I am using the Accel EFI intake with an elbow pointing backwards and an LSX throttle body. This way I can take advantage of the cowl hood Im putting on.
The LSX throttle bodies use the same TPS and IAC wiring as our L98 cars do, but they use a different connector. You can get early to late adapters from FAST ($10 ea.) or just splice the LSX plug onto the L98 wiring. It is also very tunable for our computers.
If you are going with a carb EFI intake and custom elbow you will gain much more if using a single blade LSX throttle body. For a mostly stock engine though I doubt you need much more than a stock throttle body. I got one with sensors (that work) off a wrecked LS1 Trans Am for $50. I will most likely port it but the stock size should be plenty of CFM for stock or mild engines. You need to get a throttle body from an LS1 Camaro, Trans Am, or GTO because they are sill cable driven. Only difference is the throttle cable goes on the pass side instead of the driver.
This is the intake Im going to use:
![]()
It comes with fuel rails and uses the same injectors that the L98 does. Only $500. Like me all you would need is to make your own elbow, some connectors, and a LS1 TB. If you make your own elbow you can make it fit under the hood, or have the intake elbow people make one to your dimensions.
Im still gathering parts but I plan to have the new engine in by spring.
The LSX throttle bodies use the same TPS and IAC wiring as our L98 cars do, but they use a different connector. You can get early to late adapters from FAST ($10 ea.) or just splice the LSX plug onto the L98 wiring. It is also very tunable for our computers.
If you are going with a carb EFI intake and custom elbow you will gain much more if using a single blade LSX throttle body. For a mostly stock engine though I doubt you need much more than a stock throttle body. I got one with sensors (that work) off a wrecked LS1 Trans Am for $50. I will most likely port it but the stock size should be plenty of CFM for stock or mild engines. You need to get a throttle body from an LS1 Camaro, Trans Am, or GTO because they are sill cable driven. Only difference is the throttle cable goes on the pass side instead of the driver.
This is the intake Im going to use:
It comes with fuel rails and uses the same injectors that the L98 does. Only $500. Like me all you would need is to make your own elbow, some connectors, and a LS1 TB. If you make your own elbow you can make it fit under the hood, or have the intake elbow people make one to your dimensions.
Im still gathering parts but I plan to have the new engine in by spring.
Wow Kubs, that's a nice looking setup. I need to go that route with my ole TBI truck. Hmmmmm.....artyon:
artyon:
1 - 20 of 27 Posts
