RCCrawler Forums

hvydty1 · 05-07-2007, 06:27 PM

I own a couple of 2.2 J2-TT's and am overall impressed with the performance of them, up till yesterday at a comp. For some reason, steep climbs and side hill crawling have become a beast. I therefor have come to the conclusion that I need to dial in the suspension a little more. I run Revo steel bottom links, homemade uppers made to Reign's spec's, Maxx shocks with 35 weight oil, and Associated MGT stock(?) blue shock springs(Bag said soft). I run Moabs with RC4WD super narrow bead locks with cut foams. I have 3 3300 GP batteries on top of the servo, and 3 on the back axle. I think weight wise, it's pretty much balanced, the weight is centered low.

My question is this, to J2-TT owners/runners, what could/has anyone done to make their rig perform better? Like I said above, It's pretty much how Reign suggested it should be set up. I'd Just like to hear some thoughts from other J2-TT owners, any advice would be much appreciated.

LIKES2CRAWL · 05-08-2007, 09:10 AM

Some pics would be nice to see what we're working with.

4stAir · 05-08-2007, 02:47 PM

i am running 100wt in my maxx shocks with orange losi springs, however i am need a stiffer set of rears due to my new 8 cell and the torque.

i like the way the 100wt slows the suspension down. it cycles more consistantly and doesnt get as floppy when on power.

EeePee · 05-08-2007, 03:06 PM

I can't give away all my secrets. But in the last two events I've done quite well, and I like to think the set up of the truck has something to do with that.

Try Losi orange springs in front, a Losi blue in the left rear, and a Losi pink in the right rear. My fronts have a 1/4 spacer for preload. All are 2.5 inch long springs.

Depending on the upper link mount, as in if its a flat plate type, place some spacers maybe 1/4 inch long underneath the rear upper links, on the axle side.

Get your rear driveshaft yoke pointed up. Get your front driveshaft yoke pointing a little downward.

And get some CVDs.

Seat time, seat time, seat time.

666 · 05-08-2007, 03:08 PM

Quote:

Originally Posted by EeePee

Seat time, seat time, seat time.

Does your seat have a beer holder?

EeePee · 05-08-2007, 03:10 PM

One on each side. Of course.

BrandO · 05-08-2007, 05:19 PM

I watched your truck on Sunday Timmy. I would start with some stiffer springs in the rear. Your truck had the tendancy to lay over on the rear shocks on a steep climb. With your chassis the shocks are layed down a bunch. Another way to solve your problems is to stand the shocks up a bit. I can help you out with some shock mounts and springs. I have a big old bag of springs you can pick through. Let me know what you need.

You should have asked on Sunday. I could have hooked ya up then.

hvydty1 · 05-08-2007, 06:27 PM

Yeah, my bad Brando, I was kinda PO'ed. Thanks for the advice EeePee, I'll give it a shot, I actually moved the shocks back to where the cross brace mounted, and am running some wicked stiff green springs. I know that sounds like it's defeating the purpose of loosing some of the twist of the suspension, but by moving the shocks back, I have lowered the truck by 1/2 to 3/4". And by adding the stiff springs, the suspension stayed semi soft. Looks like articulation might be limited, but Like EeePee said, wheeltime, wheeltime, wheeltime. It'll tell.

dirk379 · 05-08-2007, 10:03 PM

The downfall i see with everyone who is running this chassis is there setup. Almost everyone is using the t-maxxx shocks and what he sais on his build document. Get some touring car shocks, lower the CG 2" by doing so and you'd have a much more capable rig IMO.

dieselfuel · 05-08-2007, 11:09 PM

i just recently rebuilt my j2... put an r2 trans in it, did the ball end mod to the shocks. sortened them by adding 1/4" spacers inside them, bent my lower links and stepped up to 80wt shock oil. i think the r2 being mounted to one side keeping the driveshafts straighter is helping the twist and rollback on climbs. its performing better than ever!!

i wanna try touring car shocks, link mounted with internal springs.

hvydty1 · 05-09-2007, 08:56 PM

I like these ideas! I thought about shorter shocks, but my thinking was Rustler front shocks. A good inch shorter. Actually just by moving the upper shock mount backwards to the top cross brace holes has dropped the truck a good inch at least. But it does put the shocks at a greater angle. Which I hope is corrected by using harder springs. Maybe, we'll see. I have noticed a huge difference in roll and twist. But I may just take EeePee's settings and incorporate them in also. I just really didn't do my homework when deciding on how best to set a J2-TT up.

05-07-2007, 06:27 PM	#1
hvydty1 Quarry Creeper Join Date: Feb 2006 Location: Angier N.C. Posts: 387	Making a J2-TT better? I own a couple of 2.2 J2-TT's and am overall impressed with the performance of them, up till yesterday at a comp. For some reason, steep climbs and side hill crawling have become a beast. I therefor have come to the conclusion that I need to dial in the suspension a little more. I run Revo steel bottom links, homemade uppers made to Reign's spec's, Maxx shocks with 35 weight oil, and Associated MGT stock(?) blue shock springs(Bag said soft). I run Moabs with RC4WD super narrow bead locks with cut foams. I have 3 3300 GP batteries on top of the servo, and 3 on the back axle. I think weight wise, it's pretty much balanced, the weight is centered low. My question is this, to J2-TT owners/runners, what could/has anyone done to make their rig perform better? Like I said above, It's pretty much how Reign suggested it should be set up. I'd Just like to hear some thoughts from other J2-TT owners, any advice would be much appreciated.

05-08-2007, 09:10 AM	#2
LIKES2CRAWL I wanna be Dave Join Date: Jun 2005 Location: KENNEWICK, WA Posts: 2,513	Some pics would be nice to see what we're working with.

05-08-2007, 02:47 PM	#3
4stAir RCC Addict Join Date: Jan 2006 Location: The Amish Ghetto Posts: 1,932	i am running 100wt in my maxx shocks with orange losi springs, however i am need a stiffer set of rears due to my new 8 cell and the torque. i like the way the 100wt slows the suspension down. it cycles more consistantly and doesnt get as floppy when on power.

05-08-2007, 03:06 PM	#4
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	I can't give away all my secrets. But in the last two events I've done quite well, and I like to think the set up of the truck has something to do with that. Try Losi orange springs in front, a Losi blue in the left rear, and a Losi pink in the right rear. My fronts have a 1/4 spacer for preload. All are 2.5 inch long springs. Depending on the upper link mount, as in if its a flat plate type, place some spacers maybe 1/4 inch long underneath the rear upper links, on the axle side. Get your rear driveshaft yoke pointed up. Get your front driveshaft yoke pointing a little downward. And get some CVDs. Seat time, seat time, seat time.

05-08-2007, 03:10 PM	#6
EeePee MODERATOR™ Join Date: Jul 2004 Location: Ohio Posts: 18,928	One on each side. Of course.

05-08-2007, 05:19 PM	#7
BrandO Rock Crawler Join Date: Aug 2005 Location: Concord, NC Posts: 560	I watched your truck on Sunday Timmy. I would start with some stiffer springs in the rear. Your truck had the tendancy to lay over on the rear shocks on a steep climb. With your chassis the shocks are layed down a bunch. Another way to solve your problems is to stand the shocks up a bit. I can help you out with some shock mounts and springs. I have a big old bag of springs you can pick through. Let me know what you need. You should have asked on Sunday. I could have hooked ya up then.

05-08-2007, 06:27 PM	#8
hvydty1 Quarry Creeper Join Date: Feb 2006 Location: Angier N.C. Posts: 387	Yeah, my bad Brando, I was kinda PO'ed. Thanks for the advice EeePee, I'll give it a shot, I actually moved the shocks back to where the cross brace mounted, and am running some wicked stiff green springs. I know that sounds like it's defeating the purpose of loosing some of the twist of the suspension, but by moving the shocks back, I have lowered the truck by 1/2 to 3/4". And by adding the stiff springs, the suspension stayed semi soft. Looks like articulation might be limited, but Like EeePee said, wheeltime, wheeltime, wheeltime. It'll tell.

05-08-2007, 10:03 PM	#9
dirk379 RCC Addict Join Date: Nov 2005 Location: Utah Posts: 1,530	The downfall i see with everyone who is running this chassis is there setup. Almost everyone is using the t-maxxx shocks and what he sais on his build document. Get some touring car shocks, lower the CG 2" by doing so and you'd have a much more capable rig IMO.

05-08-2007, 11:09 PM	#10
dieselfuel I wanna be Dave Join Date: Jan 2006 Location: Henderson/Las Vegas, NV Posts: 5,032	i just recently rebuilt my j2... put an r2 trans in it, did the ball end mod to the shocks. sortened them by adding 1/4" spacers inside them, bent my lower links and stepped up to 80wt shock oil. i think the r2 being mounted to one side keeping the driveshafts straighter is helping the twist and rollback on climbs. its performing better than ever!! i wanna try touring car shocks, link mounted with internal springs.

05-09-2007, 08:56 PM	#11
hvydty1 Quarry Creeper Join Date: Feb 2006 Location: Angier N.C. Posts: 387	I like these ideas! I thought about shorter shocks, but my thinking was Rustler front shocks. A good inch shorter. Actually just by moving the upper shock mount backwards to the top cross brace holes has dropped the truck a good inch at least. But it does put the shocks at a greater angle. Which I hope is corrected by using harder springs. Maybe, we'll see. I have noticed a huge difference in roll and twist. But I may just take EeePee's settings and incorporate them in also. I just really didn't do my homework when deciding on how best to set a J2-TT up.

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