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Does anyone here notice a 2-3psi fuel pressure drop between fuel pressure at idle and fuel pressure at full throttle? fuel pressure is the main variable I change when tuning the car and I have been trying to get fuel pressure to stay as constant as possible. Is it reasonable to expect fuel...

I just checked the 2007 GCR and the new weight for the Supra is 2750 instead of 2890! That would be great if I new where to loose the weight! Isn't the typical rule of thumb 0.1 seconds per 10lbs?

Rule: Ballast may be used. All ballast shall be located in the front passenger footwell/seating area, aft of the firewall and any footwell angle, and forward of the aft-edge of the forward-most passenger door opening, unless otherwsie specified the vehicle’s spec line.OEM front passenger seat...

I posted this in the classifieds section, put just wanted to let you guys know. 1991 240sx Engine and Drivetrain Posted: Jul, 13 2005 This engine and drivetrain were going to be a set of spares for a 1995 240sx I was preparing for ITS, but the plans changed. Now I need to make some space in...

The question is: If you were to have a vehicle with independent rear suspension and the coil springs and the shocks were separate, could you then under the new rule replace the shock with a coil over and leave the original spring out? Here is the section of the GCR concerning springs and...

What kind of seat do you have in your racecar and if you don't mind, how much was it? I don't have one yet, but I need one very soon, roll cage fabrication is about to happen and I would like to incorporate seat position into the design. Right now I am looking at either an FIA approved...

I had an unfortunate encounter with a curb the other day....the curb won. I am looking for a good source for suspension replacement parts, or even some spares if anyone has them. I don't have a complete list yet but I know the front control arm, possibly strut and tension rod will need...

Looking for any members living close to Indianapolis. I am in the process of building an 85 Toyota Supra for ITS and I currently live on the southside of Indy in Greenwood. I am just about to start roll cage fab. and welcome any suggestions or lessons learned from current IT racers. It would...

As you can see from my username, I was planning on running a 95 240sx in ITS. However, I happened to find a 85 Supra in pretty good condition at an abandoned car auction. I figure it's my first racecar and I will probably trash it at some point, and right now the 240 is very reliable...