Help with Front end Jumping.....

Stas · Post by **Stas** » Mon Jul 19, 2004 7:43 pm

Hello all..... im asking if anyone know why my car bounces around when loss of traction???? is that a problem???.....is it tire presure???

Chiangstar · Post by **Chiangstar** » Mon Jul 19, 2004 9:37 pm

are you talking about wheel hop? the front of the car bumps up and down when you launch hard? my understanding is that wheel hop is generally because your tyres have too much grip but too much torque is trying to be transmitted to the ground...since the tyres have too much grip to spin/squeal, they hop....

i think upgrading your engine mounts can help this and/or increasing your castor

simon

fto617 · Post by **fto617** » Tue Jul 20, 2004 12:40 am

anyone know how much do engine mounts cost for fto???
mine is worn out

GWIDO · Post by **GWIDO** » Tue Jul 20, 2004 3:32 pm

try backing off the throttle just a touch until you get a nice even amount of spin, this will make your launches smoother and quicker without costing a cent.
I think Danny changed the angle of his struts to fix this???

Stas · Post by **Stas** » Tue Jul 20, 2004 7:46 pm

it does it all of a sudden......never used to do it..... could it be the transmision? or clutch???

RichardH · Post by **RichardH** » Wed Jul 21, 2004 12:09 am

A faulty shock absorber at the front?

- Rich

Stas · Post by **Stas** » Wed Jul 21, 2004 3:03 pm

maybe??????? ill check it......i got my car lowered recently, thought they might check it???

Post by **smorison** » Wed Jul 21, 2004 5:13 pm

Stas wrote:maybe??????? ill check it......i got my car lowered recently, thought they might check it???

yeah probably suspension issue then...

how much did you lower it and what are the shocks????

Stas · Post by **Stas** » Wed Jul 21, 2004 8:52 pm

i lowered it 1.5 all around............with stock shocks....

im getting my clutch changed on friday as 3rd starting slips.... what does it cost on avarage?

RichardH · Post by **RichardH** » Thu Jul 22, 2004 12:38 am

If those are the original dampers, then they are old and dead... with firmer springs thrown on around them. I very dodgy combination.

It's skipping because the shock absorbers are failing to control the springs, so the tyre is leaving the road surface. Remember the Pedder's ads? That kind of thing!

Some good quality dampers that match your increased spring rate should be on your shopping list!

- Rich

Stas · Post by **Stas** » Thu Jul 22, 2004 10:22 am

how much is it for something decent???? and i like comfort....

ruchi · Post by **ruchi** » Thu Jul 22, 2004 10:28 am

until you get yours shocks looked at, lowering your tyre pressue a little could also help, as tyres are the first part of your suspension system.

What PSI are you running in your tyres?

Stas · Post by **Stas** » Thu Jul 22, 2004 5:36 pm

running my tyres on 35 psi

ruchi · Post by **ruchi** » Thu Jul 22, 2004 5:42 pm

standard recommended pressures by Mitsubishi are:
Front: 32 PSI
Rear: 28 PSI

35psi is fine, but it will be a firmer ride and with worn shocks a bumpier ride. Until you get your shocks looked at it may pay to drop the pressure a bit.

Stas · Post by **Stas** » Thu Jul 22, 2004 6:57 pm

i have 17" wheels.... is that the same?

Guni_GuGu · Post by **Guni_GuGu** » Fri Jul 23, 2004 10:48 am

Doesn't the pressure in each tyre depend on the rubber and rim?

Not sure, just guessing here? But I though, each tyre, had a recommened, pressure level...

RallyMad · Post by **RallyMad** » Fri Jul 23, 2004 3:26 pm

Your right Guni-Gugu. I've always thought that with a large wheel and a smaller tyre you should run more psi, so I would think 35psi would be about right. I don't know whether each tyre has a recommend pressure though because think of all the possible combinations of wheels and cars and loading etc.

ruchi · Post by **ruchi** » Fri Jul 23, 2004 3:43 pm

not sure about the pressure differences (if any) for 17" rims, but in terms of each tyre having a recommended pressure, I think what you're probably refering to the is the maximum pressure rating that each tyre will have printed on its sidewall.

Teania · Post by **Teania** » Fri Jul 23, 2004 5:19 pm

My tyre guy (who I trust as I am no tyre expert) - and who KNOWS how I drive my car.....

said that pressures can also vary on how you drive the car as well - he recommended me to run my tyres on a min of 36 psi - but pref at 38psi (225/45/17 btw) and the harder (psi) the tyre the harder the ride -(combined with new springs and shocks) makes for..... ummm... quite a firm ride these days

(no more bouncy bouncy - which I had for a while after I changed the springs but still had the stock shocks)

(but the higher pressure, plus the camber I run as well, and you have a lot of tyre rotations thrown in as they wear quicker

)

Any good tyre place should be able to give you good advice on what pressure you should be running at.

FTO AUSTRALIA

Help with Front end Jumping.....

Help with Front end Jumping.....

bouncing