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Author Topic:   New GRT Modifieds
Nayr
Dirt Full Roller

Total posts: 34
posted August 26, 2005 01:13 PM  
I have a new GRT modified (chevelle stub) that I just got this year. Ran it all season and have really struggled. The car is real nice and has good quality pieces all over it. What it is really lacking is the driver (me). But I am trying to figure out a few things if anyone else has one that can help I would appreciate it. What are most of u guys running for rearend locations as far as orientation side to side? Mine is on a pull bar with 4 link left and Z link right. I have the spring on top with shock clamped in the rear on the right side. The left side is coilover in front of axle clamped up. Swing arm style birdcages. Just curious what others are doing.

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted August 26, 2005 01:26 PM  
Firstly we need to know what the car is doing, what weight percentages and so fourth. Have you called Mike at GRT? He is out today but will be back Monday.

dluna
Dirt Freak

Total posts: 334
posted August 26, 2005 01:53 PM  
most say the 4bar lr clamped in front is a tough cookie to tame, so you may want to put the spring behind. i'm going to try a 4bar next year and will learn to drive it as something other than lr clamped in front. just my observation from what others have said.

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted August 26, 2005 03:21 PM  
The GRT's seem to like the spring on the birdcage behind better. You might try that along with putting the RR spring on the arm.

GRTmod
Dirt Full Roller

Total posts: 33
posted August 28, 2005 03:34 PM  
I tried a Z-link and that was a no-no. If i were you i'd put the spring on the back, and the 4-bar on the right side (or 4-2).

zeroracing
Dirt Forum Champ
Total posts: 1875
posted August 29, 2005 10:46 AM  
I say go lr spring behind. the car was having alot of problems just being conistant the other night i was noticing, it would snap loose sometimes on nayr(i was behind him in the heat race).
to calm the car down put the lr spring behind on the cage, then the shock on front on the cage, then if you want to make the car smooth on the gas put a longer lr lower bar also. that will increase the indexing, and keep the lr spring loaded all the time, instead of just jumping the car up onto the bars and pogo sticking.

Xtreme12x
Dirt Forum Champ
Total posts: 874
posted August 30, 2005 09:27 AM  
I'd call Mike at GRT. Have you considered trying there 2 Link Setup with a Swingarm on the left rear?

NJantz
Dirt Forum Champ
Total posts: 755
posted August 30, 2005 09:35 AM  
Go with what Zero says!

I had my metric GRT set up as a 4bar on the LR with spring/behind axle and shock on the swingarm in front. The right side was zlinked with the shock and spring in front on the swing arm. Ran a very short shorty bar and a jbar. Worked real good. Very drivable.

Get with a guy that can watch the car and help you sort it out. You'll get there.

[This message has been edited by NJantz (edited August 30, 2005).]

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