C4 Technical Summary and FAQ - Please Read on a Regular Basis.
4th Gear
Joined: Mar 2006
Posts: 4
Likes: 0
Hello everyone, I am looking for performance and customization tips for a 1984 C4 Targa. Is there any way to get this Crossfire to breathe better; turbo?, super charger?, bore the damn manifold out? Thanks for your help, SHY.
3rd Gear
Joined: Apr 2006
Posts: 3
Likes: 0
This a great website for tech questions.
Listing of GM service bulletins for Corvettes.
http://www.vettetop100.com/crowz/1987.htm
Listing of GM service bulletins for Corvettes.
http://www.vettetop100.com/crowz/1987.htm
Melting Slicks
Joined: May 2001
Posts: 3,014
Likes: 18
From: Raleigh, NC
I have empirical data on the throttle switch. 14.5 without the switch, 14.7 with the switch. Cool down time made no difference. The car felt a bit faster, but it was infact slower. 1995 LT1, A4.
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by aceace
This a great website for tech questions.
Listing of GM service bulletins for Corvettes.
http://www.vettetop100.com/crowz/1987.htm
Listing of GM service bulletins for Corvettes.
http://www.vettetop100.com/crowz/1987.htm
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Originally Posted by neat
I have empirical data on the throttle switch. 14.5 without the switch, 14.7 with the switch. Cool down time made no difference. The car felt a bit faster, but it was infact slower. 1995 LT1, A4.
Thanks for sharing!!
Burning Brakes
Joined: Feb 2006
Posts: 1,098
Likes: 1
From: Webster Texas
nice section
Lotsa time went into this-thanks. For the 84 owners out there:
base rear gear auto and manual: 3.07
optional gear : 3.31
0nly about 450 of the 55k or so built had the optional gearing though thats the way the test cars for R&T and C&D were equipped.
Eric
84 Z51 Auto
base rear gear auto and manual: 3.07
optional gear : 3.31
0nly about 450 of the 55k or so built had the optional gearing though thats the way the test cars for R&T and C&D were equipped.
Eric
84 Z51 Auto
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Burning Brakes
Joined: Feb 2006
Posts: 1,098
Likes: 1
From: Webster Texas
#s for 84
My Z51 auto has the 3.07 gear. I just got back from Houston raceway park tonite. My car ran consistant 15.2 at 89mph. Temp was in the 80'sF. It has 114k on it. It has the ram-air mod(makes underhood ducting functional), K&N filter and cat only, no mufflers. I run Mobil 1 5w-30 syn. So the car is close to stock as you could get. The R&T time was 15.5 seems that Car andDriver got a 15.3. The cars tested were 4+3 manuals with the 3.31 gearing. I still have the R&T issue!
Eric
84 Z51 Auto
Eric
84 Z51 Auto
Last edited by xrcrx; May 13, 2006 at 04:38 AM.
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
It's not so much corrections, as it is additions and enhancements.
I added the section on engine swaps... I need to add the thread on the Big Block conversion.
I have added in recent weeks the E85 comments.
things like that.
if anyone sees an error, please, let me know!!!
I added the section on engine swaps... I need to add the thread on the Big Block conversion.
I have added in recent weeks the E85 comments.
things like that.
if anyone sees an error, please, let me know!!!
Thread Starter
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
the air foil is a joke. I have yet to see empirical data that proves it's worth any more than 5hp, under any condition.
Listing performance companies could lay us smack into the middle of the forum rules about posting non-forum vendor info... And I don't feel like creating the xref between brand and vendor.... that would be a bitch.
Listing performance companies could lay us smack into the middle of the forum rules about posting non-forum vendor info... And I don't feel like creating the xref between brand and vendor.... that would be a bitch.
Le Mans Master
Joined: Jun 1999
Posts: 6,272
Likes: 2
From: Chino Valley AZ
Cruise-In I Veteran
Cruise-In II Veteran
Currently Corvette-less
Bogus,
Excellent work!
Your FAQ is not only factual but also very well layed out. Kudos to you and all the contributors.
~ Purp
Excellent work!
Your FAQ is not only factual but also very well layed out. Kudos to you and all the contributors.~ Purp