gramey
Junior Member
Posts: 68
|
Post by gramey on Feb 12, 2007 8:16:40 GMT
???I'm sure one of you long standing Ttech peeps will know the answer to this one. What was the last chassis made where the batteries were mounted along one side? If you know the answer to that one then hopefully you might know the answer to this one, any idea's where I could source two new one's? Our XRS's are fine at up hill jumps but nose dive like stricken submarine on down hill jumps. I'd like to try a different battery layout to see what difference it makes.  |
|
|
|
Post by Cooper on Feb 12, 2007 10:52:57 GMT
the XK5 (red anodising)
I still have 2 this style, one with old kick up and one with old front kick up modified to 'more kick up' like in newer versions. (used)
|
|
predatom
New Member
The Pred' addict!! TTech factory driver 98/99. Back in '07!! ;-)
Posts: 14
|
Post by predatom on Feb 12, 2007 11:05:04 GMT
To my opinion Gramey, try to find the solution in another way!!
Suspensions for example.....
I think it will be worst with such a disposition of batteries.
Remember the old Pred's, they were better on jumps since the new chassis 2x3 has been implemented.
|
|
|
|
Post by chris burgess on Feb 12, 2007 11:09:38 GMT
???I'm sure one of you long standing Ttech peeps will know the answer to this one. What was the last chassis made where the batteries were mounted along one side? If you know the answer to that one then hopefully you might know the answer to this one, any idea's where I could source two new one's? Our XRS's are fine at up hill jumps but nose dive like stricken submarine on down hill jumps. I'd like to try a different battery layout to see what difference it makes. Graham - the older chassis that you refer to will REALLY screw up the way the car jumps - they will not fly level at all dur to the weight distribution. What you need to do is alter the way you take the jumps - ease off the throttle on the approach, and then "blip" the throttle on the up ramp - this will keep the nose in the air better - if you think it is going to far up, apply the brakes a little or just take the power off. this will level the car out. |
|
gramey
Junior Member
Posts: 68
|
Post by gramey on Feb 12, 2007 14:08:44 GMT
:)Thanks for the advice re sticking with the stock chassis, guy's, I obviously didn't explain myself very well. It's not the jumps where you go up a ramp, it's the drop's. There's one particular section at our local track where you come off a 90 deg left hand bend, short straight with about a 3 foot drop off in the middle. It's got to the stage where I'm slowing right up and rolling over the edge as if I go to fast the car nose dives into the ground. Other guys (read XX4's etc.) are nailing it through the air and staying much flatter and not nose diving then tumbling on landing. It's probably me but all the guy's running Preds appear to have the same problem?  |
|
|
|
Post by Northy on Feb 12, 2007 14:23:05 GMT
So what hapeens if you 'nail it' off the drop off? We used to have something similar at Worksop indoors here in the UK few years ago) and I seem to remember I had to floor it off the top.
G
|
|
|
|
Post by chris burgess on Feb 12, 2007 17:38:03 GMT
yup, agree with G - still think a little "power-on" over the edge would help....you could try using a bigger rear wing or leaving a gurney flap on the rear wing - a bit more downforce "might" help to keep the back end planted.
Problem is, if it is just one area of the track, and your car is working well everywhere else, you need to drive around the problem if you can.
|
|
|
|
Post by restimax on Feb 12, 2007 17:57:32 GMT
the jump it's difficult to times, but a correct set-up, and a practice, more practice for take correct the jump.... and control the x10 on tweak station is important for me! |
|
|
|
Post by pro4nut on Feb 12, 2007 19:37:53 GMT
Sounds like a bomb hole type thingy, give it a little blast of throttle and hold the stick to keep it level
|
|
|
|
Post by restimax on Feb 12, 2007 19:58:20 GMT
but why the front of predator in the jump tip up???  |
|
|
|
Post by chris burgess on Feb 12, 2007 22:20:17 GMT
it's the rotational force of the front wheels lifting the car up - thats why applying the brakes makes the car point downwards. All to do with weight transfer under power and such like.
|
|
|
|
Post by pro4nut on Feb 12, 2007 23:32:32 GMT
you need to watch neil cragg to really see this happen. he can make a 2wd change attitude which is hard as the front wheels are un powered.
This was what i was taught,
blip throttle in air to lift nose
maintain throttle position to keep level
brake to bring the nose down
many guys get twitchy when in the air and nose dive the car as they don't use the throttle in the air or come off power once its up
|
|
