F-1 compressor on a C4
Racer
Joined: Nov 2003
Posts: 335
Likes: 0
From: Converse Tx
Originally Posted by tpi 421 vette
Has anybody put a Procharger F-1 compressor on a C4. Procharger doesn't think it could be done easily. What did you use for brackets?
Safety Car
Joined: Apr 2001
Posts: 3,525
Likes: 2
From: Houston TX
I am not sure what would be the limiting factor, as the volute remains at 9" like the P-600B/P-1/D-1 and the transmission (if I remember correctly) is similar to the D series. It should not be an issue.
I will tell you that when you step to the 9.75" volute, or the 10.5" volute, be prepared for some serious work. I fabbed my own brackets for both of these units in the C4. ATI told me that neither of these could be used in the C4 chassis and have never been done. They are probably still telling people the same, when my personal cars are proof that it can be made to fit.
Aaron
I will tell you that when you step to the 9.75" volute, or the 10.5" volute, be prepared for some serious work. I fabbed my own brackets for both of these units in the C4. ATI told me that neither of these could be used in the C4 chassis and have never been done. They are probably still telling people the same, when my personal cars are proof that it can be made to fit.
Aaron
Racer
Joined: Feb 2000
Posts: 488
Likes: 28
From: Peabody MA
F1R on a C4
I made a bracket to mount an F1R on my C4. I borrowed a friends for all the fab work. I just haven't taken the plunge to buy a unit for myself.
My spacing of the blower was a little odd and as such I had to pill a pulley shaft down a little but it fits and works. At some point I'll modify the spacing to use a standard pully.
Only mods I had to do were a little plastic clearencing on the fan shroud (from using a CS144 alt) and quite a bit of hood bracing cutting.
-Mike
My spacing of the blower was a little odd and as such I had to pill a pulley shaft down a little but it fits and works. At some point I'll modify the spacing to use a standard pully.
Only mods I had to do were a little plastic clearencing on the fan shroud (from using a CS144 alt) and quite a bit of hood bracing cutting.
-Mike
Racer
Joined: Feb 2000
Posts: 488
Likes: 28
From: Peabody MA
The volute on a D1 is 9" and the F1-R is 9.75". I didn't start with a D1 bracket, instead I used MDF to get the rough mounting location where I was happy with it then used 1/2" aluminum plate for the bracket.
My hood prop has been on the other side of the car for 6 years now, so that wasn't a problem.
-Mike
My hood prop has been on the other side of the car for 6 years now, so that wasn't a problem.
-Mike
Safety Car
Joined: Apr 2001
Posts: 3,525
Likes: 2
From: Houston TX
I missed the "R" on your previous post. Now it makes more sense. Even with the very best mounting, the hood channel interferes with the blower volute by ~1/2". Now the D-2R is an entirely different story though.
Thanks for clarifying. Now go get the unit mounted on your car, sounds like everything is ready.
Aaron
Thanks for clarifying. Now go get the unit mounted on your car, sounds like everything is ready.
Aaron
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Race Director
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
I just bought an older D3 blower and I am AMAZED at how big this thing is. its rated at 2400 cfm at 28 psi, probably around a 14" volute,, 5 inch inlet bell, and a 4" outlet.
these blowers are amazing, and an interesting alternative to a big single turbo. they won't make as much bottom end,, but with all that flow this blower will support 1400 HP (maybe more).
going on a 540 BB project,, not a vette just yet, but maybe someday in a hacked up c4. they are getting cheap enough that this would make a great car to back half, and build.
for now the engine is going into a 72 TA, because I have a nice "mutt" that has already been modded into a drag car.
looking for some advice on race car fabrication shops in NOVA area, thanks for any feedback!!
fun stuff. good luck with that blower c4 project, talk to Tony D. he has a BB monster ready to rock!!
these blowers are amazing, and an interesting alternative to a big single turbo. they won't make as much bottom end,, but with all that flow this blower will support 1400 HP (maybe more).
going on a 540 BB project,, not a vette just yet, but maybe someday in a hacked up c4. they are getting cheap enough that this would make a great car to back half, and build.
for now the engine is going into a 72 TA, because I have a nice "mutt" that has already been modded into a drag car.
looking for some advice on race car fabrication shops in NOVA area, thanks for any feedback!!
fun stuff. good luck with that blower c4 project, talk to Tony D. he has a BB monster ready to rock!!
Safety Car
Joined: Apr 2001
Posts: 3,525
Likes: 2
From: Houston TX
The D3 is a 12" volute. To fit a D2, is quite a task, I can only imagine a D3. A friend of mine runs one in a '91 street Mustang with a 406" SBC that is carbureted. He does not drive it much on the street, and it seems quite finicky.
Best of Luck.
Best of Luck.
Race Director
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
will this blower even be worth doing at lower boosts??
28 soulds like way too much even with the low compression and race gas but I know the mustang guys blow the house down with this equipment. the eagle engine is supposed to run up close to 1400 HP but I would like to run around 12 PSI intercooled and shoot for more like 800 to start to figure out how to drive this thing and tune it.
with the big turbos they are a dog outside the range they are
most happy and I suspect this thing will be too.
I have lots of room on the old car which is why it's chosen. at the time the body was cheap and I didn't want to molest a vette.
what should I expect to pay to back half the car with the existing 12 bolt rear. I am hoping to use it but most have advised a 9" for this much power.
thinking of building like a 10" tire street car to provide a bit of a softer launch on this heavy pig. the engine is going to make quite a bit of torq
28 soulds like way too much even with the low compression and race gas but I know the mustang guys blow the house down with this equipment. the eagle engine is supposed to run up close to 1400 HP but I would like to run around 12 PSI intercooled and shoot for more like 800 to start to figure out how to drive this thing and tune it.
with the big turbos they are a dog outside the range they are
most happy and I suspect this thing will be too.
I have lots of room on the old car which is why it's chosen. at the time the body was cheap and I didn't want to molest a vette.
what should I expect to pay to back half the car with the existing 12 bolt rear. I am hoping to use it but most have advised a 9" for this much power.
thinking of building like a 10" tire street car to provide a bit of a softer launch on this heavy pig. the engine is going to make quite a bit of torq
