IPB

Welcome Guest ( Log In | Register )

 Forum Rules 
Solo PerformanceUMI PerformanceUnbalanced EngineeringHotpart.comBlaine Fabrication.com
> Z28 VS C4 handling (modded for road racing), Handling potential of an f-body vs C4
Augusto
post Jun 21 2009, 09:34 AM
Post #1


newbie


Group: Members
Posts: 5
Joined: 16-June 09
Member No.: 5,318



Hi, everybody. I'm really excited to go for an all out track car project.

I'm really puzzled at this dilemma: could a 98 Z28 be modded to match or surpass the handling of a C4 with Z51 like susp (Crossmember and camber brace mods)?

I may be able to trade my 98 LS1 Z28 for an auto '95 C4 (and like 3K of cash, and I would swap a ZF6 and mod susp). C4s are not so cheap to get in my country (as opposed to fbodies), let alone C5s. I was just about to swap a T56 (with relocation crossmember, Z06 clutch, etc) on the Z. Before I just do either of it, I want to make sure to know if I can achieve handling capabilities of a Z51 C4 or close through modding (shocks, tires, rims, sfc, kmember, a-arms, torque arm, lcas, panhard, strano swaybars, rollbar, a little diet, etc). Guys please be honest.

I've seen biased opinions on the C4 side by people who do not really focus on track improvement (and take stock form as a reference) so I thought this would be the right place to ask.

I want to make sure to invest time and effort on the car with better handling potential (modded) on the following couple of years. (Ultimate purpose: Road Racing and a little of AutoX).
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
Blainefab
post Jun 22 2009, 08:20 AM
Post #2


I build race cars
*****

Group: Advanced Members
Posts: 4,748
Joined: 31-August 05
From: Central coast, CA
Member No.: 874



The C4 chassis is fixed with way less cage than a Fbod needs, and can be made lighter with less work. The biggest expense in upgrading the suspension is replacing the rear links, no need for a fancy TA or front arms.

Augusto - If you don't have the ZF yet, there are other solutions that will work and have better repair part availability - but you'd need some fab work done.
Go to the top of the page
 
+Quote Post
Augusto
post Jun 23 2009, 04:33 AM
Post #3


newbie


Group: Members
Posts: 5
Joined: 16-June 09
Member No.: 5,318



QUOTE (Blainefab @ Jun 22 2009, 03:20 AM) *
The C4 chassis is fixed with way less cage than a Fbod needs, and can be made lighter with less work. The biggest expense in upgrading the suspension is replacing the rear links, no need for a fancy TA or front arms.

Augusto - If you don't have the ZF yet, there are other solutions that will work and have better repair part availability - but you'd need some fab work done.


I have a T56 on the garage. I've been following a couple of C4 LS1 swap threads and info (I'm really fond of LS1s) and seems very very messy. (dashboard wiring, cbeam, alignment with the tranny). Still, main goal is handling not engine power.

QUOTE (trackbird @ Jun 22 2009, 10:46 AM) *
I want a '91. It's the last year of the SBC, the first year of the LT1/ZR1 style body, it has the 6 speed, not the earlier 4+3 gearbox and after 1988 they fixed the rear suspension geometry on the Corvettes, so it benefits from that upgrade as well.

Not that I've been looking for a Corvette or anything...


Mmmm. good to know. I just limited myself to 94-96 C4s because of improved suspension geometry I didn't want to miss.

I will still borrow my brother's thirdgen for a couple happytail fun heats. Long live the thirdgen and the king of the hill. :-D

This post has been edited by Augusto: Jun 23 2009, 05:06 AM
Go to the top of the page
 
+Quote Post

Posts in this topic
Augusto   Z28 VS C4 handling (modded for road racing)   Jun 21 2009, 09:34 AM
trackbird   Augusto, The only information I can add is that m...   Jun 21 2009, 02:40 PM
roy   With the mods you listed the C4 vette will always ...   Jun 21 2009, 02:56 PM
prockbp   Check historic autocross results here: http://www...   Jun 21 2009, 03:40 PM
Augusto   Thanks, guys. Really appreciated.   Jun 21 2009, 05:14 PM
00 Trans Ram   I'm going to have to disagree, but only becaus...   Jun 21 2009, 09:22 PM
Mojave   Auto-x classing and results (in AS vs FS, BSP vs E...   Jun 21 2009, 10:24 PM
Blainefab   QUOTE (Augusto @ Jun 21 2009, 02:34 AM) a...   Jun 21 2009, 11:25 PM
00 Trans Ram   Mine may very well be some skewed results. I know ...   Jun 22 2009, 04:08 AM
00 Trans Ram   I knew there was soemthing else I wanted to say...   Jun 22 2009, 04:10 AM
Mojave   QUOTE (00 Trans Ram @ Jun 21 2009, 11:08 ...   Jun 22 2009, 04:20 AM
Augusto   I'm aware the first mod to an A4 C4 will be ZF...   Jun 22 2009, 05:21 AM
Blainefab   The C4 chassis is fixed with way less cage than a ...   Jun 22 2009, 08:20 AM
Augusto   QUOTE (Blainefab @ Jun 22 2009, 03:20 AM)...   Jun 23 2009, 04:33 AM
roostmeyer   Just curious what are c4's weighing in at in f...   Jun 22 2009, 02:37 PM
Mojave   QUOTE (roostmeyer @ Jun 22 2009, 09:37 AM...   Jun 22 2009, 06:36 PM
trackbird   I want a '91. It's the last year of the SB...   Jun 22 2009, 03:46 PM
roy   That one in the Video is a full caged car weighin...   Jun 22 2009, 06:56 PM
Blainefab   AFAIK nothing significant happened to the C4 suspe...   Jun 23 2009, 10:20 AM
00 Trans Ram   Does anyone have any other head-to-head results?He...   Jun 23 2009, 07:51 PM
Mojave   QUOTE (00 Trans Ram @ Jun 23 2009, 02:51 ...   Jun 23 2009, 08:01 PM
00 Trans Ram   I'll give the better suspension, front and bac...   Jun 24 2009, 04:06 AM
Augusto   QUOTE (00 Trans Ram @ Jun 23 2009, 11:06 ...   Jun 24 2009, 07:33 PM
00 Trans Ram   You're not going to go wrong either way.   Jun 26 2009, 03:33 AM
wannafbody   Let me throw some fun day autocross numbers out th...   Jul 5 2009, 03:22 AM
LT4Firehawk   Here's my personal experience, I've tracke...   Jul 15 2009, 04:55 AM
00 Trans Ram   Perhaps I need to borrow a C4 and see what I can d...   Jul 15 2009, 01:17 PM
Sam Strano   This goes back some time. But in 1999 there was a...   Jul 15 2009, 07:45 PM
00 Trans Ram   QUOTE (Sam Strano @ Jul 15 2009, 02:45 PM...   Jul 15 2009, 08:46 PM
SSTAT   QUOTE (00 Trans Ram @ Jul 15 2009, 04:46 ...   Jul 16 2009, 04:34 AM

« Next Oldest · General Discussion · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



Lo-Fi Version Time is now: 6th July 2025 - 12:25 PM