Road Racers gurus. prep recomendations?
11-14-01, 02:09 PM
#26
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shocks
best shocks for money? It all depends on how good of a driver you are. No matter how much money you sink in your car for suspension and tire mods, if you cannot take it to the limit then you are wasting your money. As far as price goes, I would recommend Mazdaspeed coilovers. It is what I am running right now and for me it is perfect. It is not too expensive, but very high quality and it is 4 way stiffness adjustable too. Of course you need to set up your suspension too not just throw it in. You need to adjust the toe, camber, and alignment or else your car will not handle well even with aftermarket suspension.
Also the degree you modify your car depends on the class you are running your car in. The higher the class, the faster the cars go and the more modified they are but those are usually harder to compete in. If you are road racing as a hobby then you can mess with your car all you want
Also the degree you modify your car depends on the class you are running your car in. The higher the class, the faster the cars go and the more modified they are but those are usually harder to compete in. If you are road racing as a hobby then you can mess with your car all you want
11-14-01, 06:43 PM
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hi fookndtitefd.
Can you give me some details on the mazdaspeed coilovers?
How much you pay, whats the front and rear spring rate and are they rebuildable?
Pedro.
Can you give me some details on the mazdaspeed coilovers?
How much you pay, whats the front and rear spring rate and are they rebuildable?
Pedro.
11-14-01, 11:40 PM
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i 'm not sure if he has a site , but there are a lot of pics on the florida rx7 club site, thats all i know.
Its $150 for both fenders, and i made them myself. I took molds of every panel of the 93 rx7 except the roof, so i could re do any panel of my car cheap in case of an accident. I stopped selling them as its too unhealthy to work with fiberglass. This is just extras i have. No pics available though. But you can see my car which raced at this years Vancouver cart support race at www.mazdarx7.homestead.com/rx7.html
The stock fenders are quite light and you will only save 2-3 pounds each.
wouter
Its $150 for both fenders, and i made them myself. I took molds of every panel of the 93 rx7 except the roof, so i could re do any panel of my car cheap in case of an accident. I stopped selling them as its too unhealthy to work with fiberglass. This is just extras i have. No pics available though. But you can see my car which raced at this years Vancouver cart support race at www.mazdarx7.homestead.com/rx7.html
The stock fenders are quite light and you will only save 2-3 pounds each.
wouter
11-15-01, 06:48 PM
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Wouter,
Do you have the exhaust exiting at the rear of the car? I'm wondering how you managed to squeeze a Dynomax muffler next to the Fuel Cell.
I'd like to know more about you're car. I started the slow process of converting the car to road race duty only a few months back. I'm also trying to decide whether to port or not.
Pedro, you better have a big wad of $ if you're serious about road racing. Ain't cheap.
Do you have the exhaust exiting at the rear of the car? I'm wondering how you managed to squeeze a Dynomax muffler next to the Fuel Cell.
I'd like to know more about you're car. I started the slow process of converting the car to road race duty only a few months back. I'm also trying to decide whether to port or not.
Pedro, you better have a big wad of $ if you're serious about road racing. Ain't cheap.
11-15-01, 08:22 PM
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hi taz.
I already have 3 years of experience roadracing, with a 2nd generation. But yes, this one is going to be more expensive.
One of the main things is to have the most information, I have seen guys investing a lot of money on not the best performance items for the purpose, not necesary the most expensive, but the most value, some ending buying two times the same part.
I have learn some, reading on books , in different articles on grassroots motorsports magazine , they put a complete technical input on the 2nd generation, getting information from top rx7 roadracing gurus, from speedsource, tripoint, etc,. Is not very easly to get info on the 3rd gen.
Here I find few guys that practice road racing that thanks to them we learn more.
In this case I'm going to go step bye step like first with the cooling system, wheels and tires, shocks,intake filters and exahust, etc.
Not all the roadracers put good attention to the aligment, camber and tire pressure, not even use tire temperature readings, but there are some very expert guys, that really practice all suspension set up .
This is the best site I have been getting the most information, exellent for all the rx7 enthusiasts !!
Pedro
I already have 3 years of experience roadracing, with a 2nd generation. But yes, this one is going to be more expensive.
One of the main things is to have the most information, I have seen guys investing a lot of money on not the best performance items for the purpose, not necesary the most expensive, but the most value, some ending buying two times the same part.
I have learn some, reading on books , in different articles on grassroots motorsports magazine , they put a complete technical input on the 2nd generation, getting information from top rx7 roadracing gurus, from speedsource, tripoint, etc,. Is not very easly to get info on the 3rd gen.
Here I find few guys that practice road racing that thanks to them we learn more.
In this case I'm going to go step bye step like first with the cooling system, wheels and tires, shocks,intake filters and exahust, etc.
Not all the roadracers put good attention to the aligment, camber and tire pressure, not even use tire temperature readings, but there are some very expert guys, that really practice all suspension set up .
This is the best site I have been getting the most information, exellent for all the rx7 enthusiasts !!
Pedro
11-15-01, 11:15 PM
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it fits but I left the stock heatshield to protect the cell. Its really close where the exhaust does a turn near the rear crossmember.
I wrapped the exhaust with thermal wrap there. I did have to re do the exhaust piping quite a bit over the stock routing, custom work done by an exhaust shop. And its 3.5 inch pipe.
I will take some pictures by the middle of december. The car is in storage untill then. I blew the motor at the vancouver race and plan to start on it then. I will be street porting it with a rebuild.
not sure what the door weighs, but it includes an inner structure so it can open and close as stock. Its easy to pick up with one hand ,i would estimate 12 pounds.
for alignment specs i've had good results with those posted by pettit racing.
wouter
I wrapped the exhaust with thermal wrap there. I did have to re do the exhaust piping quite a bit over the stock routing, custom work done by an exhaust shop. And its 3.5 inch pipe.
I will take some pictures by the middle of december. The car is in storage untill then. I blew the motor at the vancouver race and plan to start on it then. I will be street porting it with a rebuild.
not sure what the door weighs, but it includes an inner structure so it can open and close as stock. Its easy to pick up with one hand ,i would estimate 12 pounds.
for alignment specs i've had good results with those posted by pettit racing.
wouter
11-16-01, 09:44 AM
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Hi racedriver,
I was curious on whether you also had lexan/glass windows for the doors or are you allowed to run without windows? And thanks for posting all this very informative information
. --Tommy
I was curious on whether you also had lexan/glass windows for the doors or are you allowed to run without windows? And thanks for posting all this very informative information
. --Tommy
11-16-01, 11:07 AM
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Hi Taz.
Congratulations !! you have a great proyect car it looks very professional done, may you like talk about your car?
Where did you get does brakes?
The interior looks very good.
Pedro
Congratulations !! you have a great proyect car it looks very professional done, may you like talk about your car?
Where did you get does brakes?
The interior looks very good.
Pedro
11-16-01, 10:47 PM
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In the rules we actually have to roll the windows down or remove them.
if you are running a fuel cell i would use a 78-85 porsche 911 turbo fuel pump, its by bosch, good for 600 horsepower, and external. I also had to make a surge tank to prevent fuel starvation through corners with less than half a tank of fuel. you need one or two small electric pumps to feed the surge tank.To see how check out www.sdsefi.com. lots of fuel tips there.
wouter
if you are running a fuel cell i would use a 78-85 porsche 911 turbo fuel pump, its by bosch, good for 600 horsepower, and external. I also had to make a surge tank to prevent fuel starvation through corners with less than half a tank of fuel. you need one or two small electric pumps to feed the surge tank.To see how check out www.sdsefi.com. lots of fuel tips there.
wouter
11-19-01, 12:19 PM
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Hi race driver.
About your close ratio race transmision, do you now the gear ratios? it does shift good at hi rpm, what is the tallest gears you use in the longest straight?
Pedro
About your close ratio race transmision, do you now the gear ratios? it does shift good at hi rpm, what is the tallest gears you use in the longest straight?
Pedro
11-19-01, 06:26 PM
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Pedro,
The brakes are Porsche 993t calipers and rotors. The Ultimate Garage sells the kit for the fd. Only disadvantage is that the rotor and caliper are heavy compared to the oem and some aftermarket brakes. I picked these because they are the only "cross drilled" rotors I know of that won't crack under extreme temps.
http://www.ultimategarage.com
The brakes are Porsche 993t calipers and rotors. The Ultimate Garage sells the kit for the fd. Only disadvantage is that the rotor and caliper are heavy compared to the oem and some aftermarket brakes. I picked these because they are the only "cross drilled" rotors I know of that won't crack under extreme temps.
http://www.ultimategarage.com
11-19-01, 06:28 PM
#39
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The FD Rx7, now matter how well prepared, will not be very competitive in SCCA GT-1/GT-2 classes. GT-1/2 class cars are tube-frame purpose-built race cars churning out 500-600 hp through 2300-lb chassis.
You might consider checking out SCCA IT Experimental. This is the class most turbo cars end up in. Check with your local SCCA road racing region.
I'd work on skill improvement before investing too much money in equipment. Getting plenty of seat time is key.
You might consider checking out SCCA IT Experimental. This is the class most turbo cars end up in. Check with your local SCCA road racing region.
I'd work on skill improvement before investing too much money in equipment. Getting plenty of seat time is key.
11-20-01, 12:50 AM
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I would run the car in world challenge, scca pro racing.
It would not be competitive against tube frame cars.
the ratios are
2.0
1.6
1.3
1
.9 0r.8 can't remember
basically 1st gear is like taking off in second gear with a stock tranny. then 2nd is between 2 and 3 on a stock tranny, which seems to be where i am always either at too many revs or bogging, this solves that problem.
should be good for at least 160 mph.
wouter
It would not be competitive against tube frame cars.
the ratios are
2.0
1.6
1.3
1
.9 0r.8 can't remember
basically 1st gear is like taking off in second gear with a stock tranny. then 2nd is between 2 and 3 on a stock tranny, which seems to be where i am always either at too many revs or bogging, this solves that problem.
should be good for at least 160 mph.
wouter
11-21-01, 12:33 PM
#41
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hi racedriver.
Congratulations!! this is going to be a tuff challenge, we now that your'e going to do a good job, GO FOR IT !!!
I check the price of the transmission and went a little bit up to 5,500 dls but for for about a grand more there is the PBS MRD-1 (quick change) transmision from mazda motorsports that could be a good alternative also.
The gear ratios are close to yours.
1st-2.095/2nd-1.600/3rd-1.407/4th-1.167
and 5 diferent gears can be change without taking the transmision of the car
Pedro.
Congratulations!! this is going to be a tuff challenge, we now that your'e going to do a good job, GO FOR IT !!!
I check the price of the transmission and went a little bit up to 5,500 dls but for for about a grand more there is the PBS MRD-1 (quick change) transmision from mazda motorsports that could be a good alternative also.
The gear ratios are close to yours.
1st-2.095/2nd-1.600/3rd-1.407/4th-1.167
and 5 diferent gears can be change without taking the transmision of the car
Pedro.
11-21-01, 12:59 PM
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Hi sleepr1.
Something must be done, weight must be a high concern, I have seen 1780lbs supercharge rabbits taking wins against 911 and very modified eclipse turbos, the lightness seems to probe an unfair advantage.
I saw at sportcompact magazine in the october issue a 2000lbs modified street golf with 4 wheel drive and five cylinder engine from an audi. A 4 wheel drive car usualy is a high weight.
This guy made a lot of modifications using carbon fiber doors, hoods, dash. but he must even made some chasis weight reduction, to take all that weight reduction, where?? I don't now.
It will be a good idea to learn about his weightness technics.
his site is www.audituning.com
Pedro
Something must be done, weight must be a high concern, I have seen 1780lbs supercharge rabbits taking wins against 911 and very modified eclipse turbos, the lightness seems to probe an unfair advantage.
I saw at sportcompact magazine in the october issue a 2000lbs modified street golf with 4 wheel drive and five cylinder engine from an audi. A 4 wheel drive car usualy is a high weight.
This guy made a lot of modifications using carbon fiber doors, hoods, dash. but he must even made some chasis weight reduction, to take all that weight reduction, where?? I don't now.
It will be a good idea to learn about his weightness technics.
his site is www.audituning.com
Pedro
11-21-01, 05:57 PM
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Crispy,
Yeah it's the Pettit FG hood. It fits pretty well, but like I tell all my friends, nothing beats OEM. The hood weighs about 5lbs more than the one that mazda put in your car. The only fitment complaint is that it rises higher at the left and right corners near the windshield than the fenders. So there's a bit of a gap.
Yeah it's the Pettit FG hood. It fits pretty well, but like I tell all my friends, nothing beats OEM. The hood weighs about 5lbs more than the one that mazda put in your car. The only fitment complaint is that it rises higher at the left and right corners near the windshield than the fenders. So there's a bit of a gap.
11-21-01, 09:35 PM
#46
Thanks for the scoop, Taz. I may be pinging you later for more info on fitment 
But in the interim got any more pics? PM if you like. I'm looking for closeups around the headlight covers, detail shots of the vents, the underside near the latch mechanism, structral shots of the underside around the vents, and any other critical areas you think might interest me. Why do I ask you say, well I have 2-3 other locals who are interested in the hood and are nagging me for details before committing to mini-group buy among friends to save on shipping. So your assistance would be greatly appreciated
Ta,
Crispy
But in the interim got any more pics? PM if you like. I'm looking for closeups around the headlight covers, detail shots of the vents, the underside near the latch mechanism, structral shots of the underside around the vents, and any other critical areas you think might interest me. Why do I ask you say, well I have 2-3 other locals who are interested in the hood and are nagging me for details before committing to mini-group buy among friends to save on shipping. So your assistance would be greatly appreciated
Ta,
Crispy
11-24-01, 09:51 AM
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considering their thinn ness size they work quite well with racing pads. i could out brake a lot of cars, including a few gt2,3 cars. Newer porsche 911,993's with stock brakes were a little better at the start of a race, alot better later, and if i really beat on my brakes I would boil the fluid and they wouldn't. I would upgrade to at least thicker rotors. Mandeville sells them with caliper wideners for $995, 13x1.1.
11-26-01, 08:07 PM
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Keep it cool. I race an '80 RX-7 and so do a lot of people around here, and they all say they hate hot oil. Find the biggest, best oil cooler around and install it.