Notices
C4 General Discussion General C4 Corvette Discussion not covered in Tech

383-Powered C4 Could Be Yours for Under $3,000

Thread Tools
 
Search this Thread
 
Old 05-22-2017, 12:09 PM
  #1  
Corvette Forum Editor
CorvetteForum Editor
Thread Starter
 
Corvette Forum Editor's Avatar
 
Member Since: Jan 2016
Posts: 521
Received 145 Likes on 95 Posts
Default 383-Powered C4 Could Be Yours for Under $3,000



Against our will and better judgement, we're intrigued by this C4 project.

Read the rest on the Corvette Forum homepage. >>
Old 05-22-2017, 01:15 PM
  #2  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

"Eliminating the troublesome Crossfire injection system"

Way to spread the negative, misinformation about the C4, "Forum Editor"!
Old 05-22-2017, 01:25 PM
  #3  
c4cruiser
Team Owner

 
c4cruiser's Avatar
 
Member Since: Dec 1999
Location: Lacey WA RVN 68-69
Posts: 34,873
Received 476 Likes on 423 Posts
NCM Sinkhole Donor

Default

So buy it and learn something about Corvettes...
Old 05-22-2017, 02:03 PM
  #4  
Raidmagic
Melting Slicks
 
Raidmagic's Avatar
 
Member Since: Oct 2001
Location: Brandon Fl
Posts: 2,244
Received 81 Likes on 72 Posts

Default

Originally Posted by Tom400CFI
"Eliminating the troublesome Crossfire injection system"

Way to spread the negative, misinformation about the C4, "Forum Editor"!
Just because you like the cross fire and have one running good on a whole they were not very good. There is a reason they moved on from them so quickly.
Old 05-22-2017, 02:30 PM
  #5  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

Originally Posted by Raidmagic
Just because you like the cross fire and have one running good on a whole they were not very good. There is a reason they moved on from them so quickly.
Indeed...there certainly WAS a reason. The reason was not because they were "troublesome", however...which is what it says in that...ahem, "article". So, as I said...."misinformation", and yes, it IS also "negative". Nice try to spin that, though.


BTW, I don't have a CFI car anymore. However "on a whole", they ran pretty good. Good enough in fact that when they came out, they were the fastest car in America.



.

Last edited by Tom400CFI; 05-22-2017 at 02:37 PM.
Old 05-22-2017, 05:01 PM
  #6  
Cool Runnings
Melting Slicks
 
Cool Runnings's Avatar
 
Member Since: Jan 2017
Location: Minneapolis MN
Posts: 2,099
Received 46 Likes on 43 Posts
Default

Originally Posted by Tom400CFI
Indeed...there certainly WAS a reason. The reason was not because they were "troublesome", however...which is what it says in that...ahem, "article". So, as I said...."misinformation", and yes, it IS also "negative". Nice try to spin that, though.


BTW, I don't have a CFI car anymore. However "on a whole", they ran pretty good. Good enough in fact that when they came out, they were the fastest car in America.



.

I know someone who has owned a 84 for twenty years. I asked what kind of problems he's had and was told nothing other than the weather stripping needs replacement. Roof leaks if caught in the rain. Not bad for such a vintage Vette.
Old 05-22-2017, 06:28 PM
  #7  
pologreen1
Team Owner
 
pologreen1's Avatar
 
Member Since: Dec 2007
Posts: 20,974
Received 260 Likes on 239 Posts

Default

Originally Posted by c4cruiser
So buy it and learn something about Corvettes...
You win!! That is the best comment
Old 05-22-2017, 08:36 PM
  #8  
1993C4LT1
Race Director
 
1993C4LT1's Avatar
 
Member Since: Oct 2011
Location: Dallas Texas
Posts: 15,457
Received 614 Likes on 493 Posts

Default

The seats are out of a z31 300zx.
Old 05-22-2017, 10:01 PM
  #9  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

Really? They came stock w/Corbeau's ?
Old 05-22-2017, 10:11 PM
  #10  
1993C4LT1
Race Director
 
1993C4LT1's Avatar
 
Member Since: Oct 2011
Location: Dallas Texas
Posts: 15,457
Received 614 Likes on 493 Posts

Default

Yes, well only the Shiro Specials. Which were only in 1988 I believe.
Old 05-22-2017, 10:13 PM
  #11  
1993C4LT1
Race Director
 
1993C4LT1's Avatar
 
Member Since: Oct 2011
Location: Dallas Texas
Posts: 15,457
Received 614 Likes on 493 Posts

Default

My bad, they were Recaros. But still a very similar look
Old 05-22-2017, 10:24 PM
  #12  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

Originally Posted by 1993C4LT1
My bad, they were Recaros. But still a very similar look
Indeed. When the Recaro's wear out in our snow cats, I replace then with Corbeau GTS II...which is virtually identical but about 1/3 the cost.


.

Last edited by Tom400CFI; 05-22-2017 at 10:25 PM.
Old 05-23-2017, 01:12 PM
  #13  
Paul Workman
Le Mans Master
 
Paul Workman's Avatar
 
Member Since: Oct 2004
Location: South-central Missouri
Posts: 6,314
Received 500 Likes on 395 Posts

Default

Originally Posted by Raidmagic
Just because you like the cross fire and have one running good on a whole they were not very good. There is a reason they moved on from them so quickly.
Yeah, but issues with it wasn't the reason for the "quick change". It, according to one of my Corvette coffee table books, was because negotiations with Bosch to expand their TPI from the 305 cid version (IROC Camaros) to the 350 cid (L98) version wasn't completed until it was too late for the '84 MY to be included. But, a deal was struck and the bigger TPI developed in time to install in the '85 MY Vette.

The "Crossfire" wasn't new - appearing on some big Chrysler and Ford products in the late 50's, IIRC. Torque vs. rpm was broader than the Bosch TPI, but not as peaky, as I recall.
Attached Images  

Last edited by Paul Workman; 05-23-2017 at 01:19 PM.
Old 05-23-2017, 01:48 PM
  #14  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

Originally Posted by Paul Workman
The "Crossfire" wasn't new - appearing on some big Chrysler and Ford products in the late 50's, IIRC. Torque vs. rpm was broader than the Bosch TPI, but not as peaky, as I recall.
That is true. The Cross ram intake is a nice, mid-length runner intake, similar to an HSR intake, but w/the runners laid down. This allows it a higher RPM range than the TPI with potential for more hp.

Chevy played w/the technology early on, too.

Old 05-25-2017, 11:37 AM
  #15  
hcbph
Safety Car
 
hcbph's Avatar
 
Member Since: Aug 2013
Location: Minneapolis Mn
Posts: 4,199
Received 526 Likes on 476 Posts

Default

This is a personal opinion: The cross-fire was much like the original Rochester FI. They worked and worked well, but when they didn't it was extremely difficult to find someone competent to work on them. I've read of one shop back in the early 60's that literally had a shelf full of Rochester FI's they had taken off customer cars and replaced with carb setups because they weren't able to get them working correctly. Think of what a shelf worth of those would be worth today!
Old 05-25-2017, 02:32 PM
  #16  
Tom400CFI
Team Owner
Pro Mechanic
 
Tom400CFI's Avatar
 
Member Since: Aug 2004
Location: Park City Utah
Posts: 21,544
Received 3,181 Likes on 2,322 Posts

Default

Originally Posted by hcbph
This is a personal opinion: The cross-fire was much like the original Rochester FI. They worked and worked well, but when they didn't it was extremely difficult to find someone competent to work on them.
I think that is probably true...in 1982/83/84. It was new/unfamiliar technology, to most mechanics. Looking back on it now, we realize that it is one of the most simple EFI systems made.
Old 05-28-2017, 01:09 AM
  #17  
v8vette84
Burning Brakes
 
v8vette84's Avatar
 
Member Since: Dec 2009
Location: Finger Lakes Region, New York
Posts: 1,136
Received 79 Likes on 58 Posts

Default

I agree with Tom400CFI. When my 84' had the factory Crossfire it never gave any fits. Granted I didn't keep the stock engine all that long but it still didn't give me any problems. On top of that I bought the car from a guy who clearly abused the car and didn't maintain it worth a crap. The Crossfire gets the same type of **** talk that the LT1 gets. Probably because both engines were fairly limited production. At least compares to other engines.

Get notified of new replies

To 383-Powered C4 Could Be Yours for Under $3,000




Quick Reply: 383-Powered C4 Could Be Yours for Under $3,000



All times are GMT -4. The time now is 04:52 PM.