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"a change like 155 main to a 150 main, I asked if they made a 152 or 153 main"

Ben, on the Weber carb, the air correction jets can provide that half step you mentioned.
Increasing the air...

A few of the CM/FF racers I know will buy a couple of sizes smaller racing shoe to fit into the foot box better. Running shoes are a no no in a formula car. They are too wide. Even with my small...

A quick point
Remember the FF w/o driver will be only around 950 lbs so one does not need a double axle trailer and a 3/4 ton pickup. A light weight single axle and SUV will do very nicely.
I...

Great photos-looks like a well attended and well run event.
I did not see black marks on the concrete. Was it easy on tires?

Jay Ivey
4722 NE 148th Ave.

Portland, OR 97230

(503) 255-1123

Iveyengines@yahoo.com
http://www.iveyengines.com/

I have also seen guys use one rear and one front wheel for speed sensor locations (LR,RF).

The throttle position sensor: also known as the lie detector as in "I took that turn without lifting" ...

I tried using the "mark a spot on the sidewall/tread interface and then roll the tire one rev" technique. I then tried ten revs. Because of the tire growth with speed, this method proved...

What tire circumference do you guys use for the R25B when you are doing your speed calculations?

Steering rack locked straight ahead.

Thanks Neil, I forgot that one along with the others you mentioned. I cut a piece of aluminum tubing (about an inch ID) in half lengthwise to place onto of...

I see a lot of measurements are being given for different FF ride heights but I don't see the parameters for the measurements. When I measure and set my ride heights I use the following set of...

Chris
Congratulations on joining the open wheel crowd. If you have any questions, this is the place to post them.
One quick piece of advice: change the American Racers out right away. They are a...

Mike
That is just one of the reasons why many are very excited about the Honda engine in a FF=>OHC, FI, engine management, etc.


Another way to increase your heart rate is going wheel to wheel...

How about an optical solution?


http://www.mesaperformance.com/web_store/web_store.cgi?page=accescat/crane.html&category=yes



$125

"Crane-Allison's patented optical system, the ...

Chris, I believe you meant "buffing" not "buffering" a tire. It is also called "shaving" the tire here in the States. This is mostly done on a brand new street tire with full thread. The shop...

I mis-spoke in post #7. The Avon tire used by the UK does have different sizes, F&R. So Sorry for any inconvenience this may have caused.

ACB10

...

One other aspect of using a front size tire on the rear of a FF is it gives one the same effect on the overall final drive ratio as using a lower gear ratio or CWP. For example, if you are using...

Dick, Mark, et al
Regarding the same size tires F&R.
In the UK, the same size Avon threaded tire is used at all four corners. So VDs, being designed and built for the UK market have their roll...

Mark, in road racing, a lot of guys are using small tires on the rear (fronts on the rear). In FF, the rim size is dictated, not the tire size, so you can use any tire that will fit the rim.

As...

mark, note to self: Lower visor BEFORE you start the run
;)
dave

"Gordon, Jeff : 82 Reynard 82F (ex-pru-,ex-Hale)"

I have heard Jeff is still racing, but I think he has switch to Chevy power. I seem to recall he now is running the #24 for Du Pont. Maybe just...