JSilverman Posted April 25, 2007 Share Posted April 25, 2007 Ok so I just got a set of RA1s for my 924S. I figured I might as well learn the tires Im going to race on while Im still just doing DEs. The car still has stock springs and Im running ~-1.2 deg camber all around. On hard right turns the left front fender was rubbing the edge of the tire. I used the adjustable spring perches and rasied the car up abotu a 1/2" (didnt want to mess up the alignment too bad) and I was still rubbing. Can I fix this without replacing the suspension? I can probably get ~2deg of camber up front but it looks like it will still rub. Or do I pretty much need to stiffen the suspension to get the tires to work? This had me thinking about swapping to 944 fenders (would fix the rubbing and I could also run the easier to find early wheels) but Id need to do something to the rear, would bolt on fender flares be against the rules sort of like the old carrera GTS? Thanks guys! Quote Link to comment Share on other sites More sharing options...
genikz Posted April 25, 2007 Share Posted April 25, 2007 Are you rubbing on the chassis side or the outside lip? If it's the outside lip, you need to roll the lip on the inside of the fender inwards so it's flush and no longer a L shape. You can run more camber too (and should! ) I used this technique with suprisingly good results: http://www.924board.org/viewtopic.php?t=18671 I'm only running 215's right now, but shouldn't have an issue with 225's at -3 degrees camber. Regards, Chris Quote Link to comment Share on other sites More sharing options...
nhamden Posted April 25, 2007 Share Posted April 25, 2007 It's always about the money!!!!! If you spend the time and money on fenders etc... you will prabably spend more than if you just bought the suspension parts that you will be racing on anyway. You will not be competetive with stock suspension, so I wouldn't waist the money on something that will not make you go faster. Front springs are cheap and easy to instal, rear torsion bars are a little more money and harder to install, but not as hard or expensive as replacing rear quarter panels. For now, I would get as much neg camber out of the front as possible upto about -3 degrees, your car has to be leaning way over with the stock suspension which will justify more camber anyway, do the same for the rear, try to keep the camber with in a half of a degree between front and rear, example, if you can only get -2 out of the front, don't go more than -1.5 to -2.0 in the rear, if you can get -3 in the front, then go -2.5 to -3 in the rear. good luck, Quote Link to comment Share on other sites More sharing options...
944-Spec#94 Posted April 25, 2007 Share Posted April 25, 2007 On a 924S to properly fit the 225/50 R15 tire you need to either add a small spacer to clear the spring or run smaller diameter springs. This is with 2.5 deg of negative camber and at least 250lbs springs. A little inner fender adjustments may be needed a well. The 944 fenders are too big for the 52.3 mm offset wheels the 924S uses. Quote Link to comment Share on other sites More sharing options...
JSilverman Posted April 25, 2007 Author Share Posted April 25, 2007 The rubbing is occurring on the fender. The part of the fender that is rubbing feels like it has already been rolled. I was planning on borrowing a fender roller from a friend but the tire still sticks out past the fender from above. Joe- I have the M030 springs and I think they are slightly smaller than stock diameter since they arent rubbing there. Its a tight fit, but no rubbing. I guess its time to start looking for some torsion bars. Quote Link to comment Share on other sites More sharing options...
944-Spec#94 Posted April 25, 2007 Share Posted April 25, 2007 The rubbing is occurring on the fender. The part of the fender that is rubbing feels like it has already been rolled. I was planning on borrowing a fender roller from a friend but the tire still sticks out past the fender from above. Joe- I have the M030 springs and I think they are slightly smaller than stock diameter since they arent rubbing there. Its a tight fit, but no rubbing. I guess its time to start looking for some torsion bars. Seems like you need more negative camber. Quote Link to comment Share on other sites More sharing options...
JSilverman Posted April 25, 2007 Author Share Posted April 25, 2007 I guess Ill try that first and see what happens.... if not I guess Ill be suspension shopping. Quote Link to comment Share on other sites More sharing options...
Sterling Doc Posted April 25, 2007 Share Posted April 25, 2007 I guess Ill try that first and see what happens.... if not I guess Ill be suspension shopping. Are you running early offset wheels? It sounds as though the wheels are sticking out more than they should. I ran my 924S with M030 stock springs and about 2.5 degrees of neg camber &a spec tire/wheel package. It was very close to rubbing on the spring, but not the fender. Quote Link to comment Share on other sites More sharing options...
chris_venturini Posted April 25, 2007 Share Posted April 25, 2007 hmmm, i ran a completely stock 924s at my first event with RA1s on 7inch phone dials and had no issues with rubbing. I just bought some spacers for the rear to increase track width but they werent necessary for rubbing Quote Link to comment Share on other sites More sharing options...
JSilverman Posted April 25, 2007 Author Share Posted April 25, 2007 Wheels are late offset. The fender is catching the very edge of the tire. The PO of the car lowered the perches almost all the way so that is probably why it is rubbing. I raised the car about a 1/2" and the rubbing is almost gone, but I wanted to sort of preserve the alignment settings. I could already see the change in toe from raising so I left the height alone after that. Before I go to have it aligned I want to figure out when Im going to do the suspension. No sense in paying for it now just to go and replace stuff and have to do it again. Quote Link to comment Share on other sites More sharing options...
John3 Posted April 27, 2007 Share Posted April 27, 2007 Wheels are late offset. The fender is catching the very edge of the tire. The PO of the car lowered the perches almost all the way so that is probably why it is rubbing. I raised the car about a 1/2" and the rubbing is almost gone, but I wanted to sort of preserve the alignment settings. I could already see the change in toe from raising so I left the height alone after that. Before I go to have it aligned I want to figure out when Im going to do the suspension. No sense in paying for it now just to go and replace stuff and have to do it again. See you're in Burke. There is a large following around here that uses Charlie Murphy for alignment - and guidance. Charlie will do what needs to be done to get you going at your current equip and prep point. If indeed the car was lowered too far Charlie can tell with a moments glance. He knows what needs done to get to the end of your rule set; but he also knows how to adjust for where you're at now. Quote Link to comment Share on other sites More sharing options...
JSilverman Posted April 27, 2007 Author Share Posted April 27, 2007 Contact info? Quote Link to comment Share on other sites More sharing options...
John3 Posted April 27, 2007 Share Posted April 27, 2007 Contact info? 703 242 8680 ask for Charlie (Murphy) at Intersport You can tell him John Brown sent you but he'll take good care no matter. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.