Sort of C4 tech related, C4 drag car - CorvetteForum - Chevrolet Corvette Forum Discussion

Notices
C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Sort of C4 tech related, C4 drag car

Reply

 
 
 
Old 05-13-2018, 03:11 PM
  #1  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default Sort of C4 tech related, C4 drag car

This is my 1990 C4 drag car that I have been working on all winter, I do not have a tech question but thought some of you guys may find this interesting.

-515 BBC HP TBD but should be between 700 HP and 1000 HP
-Holley EFI
-12.5 compression
-385 AFR heads
-Solid roller .790/.775 lift with 278/286 duration @ .050
-2.5" headers
-Vacuum pump
-2000 CFM throttle body
-Mutli port injection
-1.76 powerglide
-4.29 gears
-2400 race weight

Expected ET from 8.0 to 8.8, best educated guess ET 8.6, will find out soon.

Updated (Added the ET and weight)

I finally ran the car, it went 8.64 at 156 MPH and the car weighs 2500 lbs with me in it.

Car ran great.




Many pictures





















































Last edited by bjankuski; 06-03-2018 at 09:03 PM. Reason: Added ET
bjankuski is offline  
Reply With Quote
The Following 2 Users Say Thank You to bjankuski For This Useful Post:
KSA Aaron (05-15-2018), Red 91 (05-14-2018)
Old 05-13-2018, 04:35 PM
  #2  
billschroeder5842
ZenVette Master level VII
Support Corvetteforum!
 
billschroeder5842's Avatar
 
Member Since: Mar 2016
Location: Southlake, TX
Posts: 2,911
Thanked 344 Times in 310 Posts
Default

Wow- you put a lot of working into that build- well done!
billschroeder5842 is online now  
Reply With Quote
Old 05-13-2018, 04:55 PM
  #3  
esham
CF Senior Member
Support Corvetteforum!
 
esham's Avatar
 
Member Since: Feb 2009
Location: Auburndale Florida 1990 Vert, 6 speed
Posts: 517
Thanks: 0
Thanked 7 Times in 6 Posts
Default

esham is offline  
Reply With Quote
Old 05-13-2018, 05:06 PM
  #4  
Whaleman
CF Senior Member
 
Member Since: Mar 2017
Location: LeClaire Iowa
Posts: 578
Thanked 55 Times in 49 Posts
Default

OMG!
You have the skills!
Whaleman is offline  
Reply With Quote
Old 05-13-2018, 05:08 PM
  #5  
toptechx6
CF Senior Member
 
toptechx6's Avatar
 
Member Since: Jun 2006
Location: FL
Posts: 3,616
Thanked 11 Times in 9 Posts
Default

Thanks for posting, great looking car! Good luck for it to exceed your expectations.: thumbs:
toptechx6 is offline  
Reply With Quote
Old 05-13-2018, 05:14 PM
  #6  
confab
CF Senior Member
 
confab's Avatar
 
Member Since: Nov 2013
Location: Greater Cincinnati Area.
Posts: 2,286
Thanked 219 Times in 193 Posts
Default

Holy crap.. That thing looks like it's going a thousand miles an hour, parked in your garage!

Nice ride..

Too fast for me, but I'm glad someone is doing it. I like to watch!
confab is online now  
Reply With Quote
Old 05-13-2018, 05:55 PM
  #7  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default

Thanks for the comments guys, it has been alot of work.
bjankuski is offline  
Reply With Quote
Old 05-13-2018, 05:56 PM
  #8  
84 4+3
CF Senior Member
 
Member Since: Aug 2017
Location: New Jersey
Posts: 570
Thanked 61 Times in 60 Posts
Default

That is a work of art you got there. Just one question, why not retain the full clamshell hood?
84 4+3 is offline  
Reply With Quote
Old 05-13-2018, 07:08 PM
  #9  
383vett
CF Senior Member
 
383vett's Avatar
 
Member Since: Apr 2003
Location: moraga ca
Posts: 15,170
Thanked 534 Times in 390 Posts
Default

Nice build. Are you still using the stock Dana 36?

Last edited by 383vett; 05-13-2018 at 08:21 PM.
383vett is offline  
Reply With Quote
Old 05-13-2018, 09:30 PM
  #10  
rklessdriver
CF Senior Member
 
rklessdriver's Avatar
 
Member Since: Apr 2005
Location: Dale City VA
Posts: 3,274
Thanked 146 Times in 130 Posts
Default

Cool. Glad your back racing. Good luck with it.
Will
rklessdriver is offline  
Reply With Quote
Old 05-13-2018, 10:07 PM
  #11  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default

Originally Posted by rklessdriver View Post
Cool. Glad your back racing. Good luck with it.
Will
I never quit racing I just raced a different car why I worked on the vette.

My back-up car is a 1983 Cutlass.
bjankuski is offline  
Reply With Quote
Old 05-14-2018, 07:57 AM
  #12  
blackozvet
CF Senior Member
 
blackozvet's Avatar
 
Member Since: Nov 2009
Location: Adelaide South Australia
Posts: 1,816
Thanked 57 Times in 54 Posts
Default

the front suspension looks old school - what is it ?
blackozvet is offline  
Reply With Quote
Old 05-14-2018, 09:24 AM
  #13  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default

Originally Posted by blackozvet View Post
the front suspension looks old school - what is it ?
It is, it is a Mustang II style of front suspension. Next year I may go to a strut style of suspension, time will tell.
bjankuski is offline  
Reply With Quote
Old 05-14-2018, 06:12 PM
  #14  
pologreen1
CF Senior Member
 
pologreen1's Avatar
 
Member Since: Dec 2007
Posts: 15,426
Thanked 157 Times in 152 Posts
Default

Wow! Very cool!
pologreen1 is offline  
Reply With Quote
Old 05-15-2018, 08:13 AM
  #15  
blackozvet
CF Senior Member
 
blackozvet's Avatar
 
Member Since: Nov 2009
Location: Adelaide South Australia
Posts: 1,816
Thanked 57 Times in 54 Posts
Default

Originally Posted by bjankuski View Post
It is, it is a Mustang II style of front suspension. Next year I may go to a strut style of suspension, time will tell.
If you can squeeze a coilover in there and it works, might as well leave it !
blackozvet is offline  
Reply With Quote
Old 05-15-2018, 08:24 AM
  #16  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default

Originally Posted by blackozvet View Post
If you can squeeze a coilover in there and it works, might as well leave it !
It has coilovers in it currently, that is why i am not too concerned. I will run it as is and see how it works and if i decide to clean it up and save some weight will change it over next winter.
bjankuski is offline  
Reply With Quote
Old 05-17-2018, 12:23 PM
  #17  
mrodoc
CF Senior Member
 
Member Since: Feb 2015
Location: Stuart Florida
Posts: 213
Thanked 15 Times in 15 Posts
Default

Originally Posted by bjankuski View Post
It has coilovers in it currently, that is why i am not too concerned. I will run it as is and see how it works and if i decide to clean it up and save some weight will change it over next winter.
I'm in awe. I'm sure we'd all love to hear a sound clip.
mrodoc is offline  
Reply With Quote
Old 05-17-2018, 03:03 PM
  #18  
vader86
CF Senior Member
 
vader86's Avatar
 
Member Since: Sep 2001
Location: Athens AL
Posts: 49,065
Thanked 134 Times in 118 Posts
Default

Needs more, time to add a S/C!
vader86 is offline  
Reply With Quote
Old 05-17-2018, 03:13 PM
  #19  
Silver85
CF Senior Member
 
Silver85's Avatar
 
Member Since: Nov 2016
Location: Buchanan GA
Posts: 668
Thanked 66 Times in 63 Posts
Default

WOW!! That looks amazing.

I have a million questions but I will only ask one. What class does this car run in?
Silver85 is offline  
Reply With Quote
Old 05-17-2018, 06:47 PM
  #20  
bjankuski
CF Senior Member
Thread Starter
 
Member Since: Sep 2001
Location: Glenbeulah Wi
Posts: 3,021
Thanked 138 Times in 130 Posts
Default

Originally Posted by Silver85 View Post
WOW!! That looks amazing.

I have a million questions but I will only ask one. What class does this car run in?
top eliminator
bjankuski is offline  
Reply With Quote
Reply
 
 
 

Forum Jump

Thread Tools
Search this Thread
Sponsored Ads
Vendor Directory
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: