First Gen Race car Build - Mazda BP Engine
10-02-12, 11:37 AM
#26
Rotary Enthusiast
Thread Starter
Well there is the first problem= disco potato! hehe
You think 2 years of racing and rings is a short life? Seriously??? I would change the rings at least once each season just to make sure it is all good! Has he done the cooling reroute mod? The stock cooling on the Miata's is not the best. The thermostat housing need to be relocated!
You think 2 years of racing and rings is a short life? Seriously??? I would change the rings at least once each season just to make sure it is all good! Has he done the cooling reroute mod? The stock cooling on the Miata's is not the best. The thermostat housing need to be relocated!
10-02-12, 11:40 AM
#27
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Thread Starter
jrx13, yes they do make pretty nice parts. I am actually looking at getting the Smartwire system as well. I have a contact to get new parts at about 15% under retail. Not bad when you are dealing with something that is $2g!
Thank you, there will be more updates on a daily basis, promise!
Thank you, there will be more updates on a daily basis, promise!
10-03-12, 05:34 PM
#28
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jrx13, yes they do make pretty nice parts. I am actually looking at getting the Smartwire system as well. I have a contact to get new parts at about 15% under retail. Not bad when you are dealing with something that is $2g!
Thank you, there will be more updates on a daily basis, promise!
Thank you, there will be more updates on a daily basis, promise!
10-03-12, 05:36 PM
#29
Rotary Enthusiast
Thread Starter
I have a MegaSquirt MS3+MS3x. They have a module for the megasquirt as well which bring most of the data needed in. The only external sensors I have got for the racepak are the oil temp (engine, trans, diff) and oil pressure!
10-08-12, 12:51 PM
#34
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Thread Starter
Thanks! Well the header will be coated inside and out. Possibly a shield for the turbine housing. Aside from that, not much. I mean all the brake and clutch parts are in the cabin, so the heat shield is really to keep under hood temps down!
10-09-12, 07:42 AM
#38
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My comment regarding heat shielding was pertaining to the fact that it was in your passenger compartment. 
Not only will it be loud, it will be hot too!
Not only will it be loud, it will be hot too!
10-09-12, 07:53 AM
#39
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very nice build going on here. If I had the money and time, I would totally be doing a similar project. although mine is based on the LSx motors. I just like the idea of gutting the car to its bare minimum then doing the cage work followed by ALL fiberglass body to include the floor. might leave the roof metal with a sunroof though since after it is done it will be a daily driver 
10-09-12, 01:28 PM
#40
Rotary Enthusiast
Thread Starter
Well there will be a box built around the exhaust with gold shielding. One thing you have to remember is that this is not a rotary, so it will be a couple of hundred degrees cooler to start with. On top of that the turbo will cool down the exhaust further. We have done similar setup on a few rotaries with no issues. So I am confident it will be fine. Same goes with the noise. There are quite a few miata's that run on track with turbo and no muffler. Two main reasons I went with the BP engine over rotary. Less noise and less heat. With a rotary, you have to have muffler coming out of your ying yang to meet sound requirements. Tired of dealing with black flags!
10-09-12, 01:30 PM
#41
Rotary Enthusiast
Thread Starter
very nice build going on here. If I had the money and time, I would totally be doing a similar project. although mine is based on the LSx motors. I just like the idea of gutting the car to its bare minimum then doing the cage work followed by ALL fiberglass body to include the floor. might leave the roof metal with a sunroof though since after it is done it will be a daily driver
The roof is steel. That's one part of the car that needs to be original even for racing. I wouldn't want to have a car like this as a daily driver. It will not be the best thing on the street! Getting old for that!
10-11-12, 09:33 PM
#42
I love to see these projects, but--like BigAl's build--when do you guys get to the point of racing it. I've 'built' my own as well only I've only really torn **** off to strip it down, not custom build the components/chassis.I get alot more track days that way. Haha. Have fun with this.
10-12-12, 12:55 AM
#43
Rotary Enthusiast
Thread Starter
Well I have other cars to race. This one will just win races! haha
Well the exhaust is all done and welded. Only piece required will be an elbow from the turbo to the flex when the turbo shows up!
Well the exhaust is all done and welded. Only piece required will be an elbow from the turbo to the flex when the turbo shows up!
10-12-12, 11:09 PM
#45
Rotary Enthusiast
Thread Starter
There is more room than it appears. As well the pipe will move down and back once some more trimming is done and the new sheet metal is added. But yes it is close to the crank angle sensor!
10-13-12, 11:02 PM
#46
Rotary Enthusiast
Thread Starter
Well the rear suspension is finally done. The brackets arrived and are welded now. I partially mounted the exhaust too and it has the proper clearance I was planning on!
10-24-12, 01:39 PM
#48
Rotary Enthusiast
Thread Starter
Thank you! I have more:
The coolers' location and mounting has been redesigned for a better venting out of the hood and under the car. It is a v-mount system now. The exhaust is fully mounted now too (excuse the crappy photo) and I have made a mount for the windshield defroster.
The coolers' location and mounting has been redesigned for a better venting out of the hood and under the car. It is a v-mount system now. The exhaust is fully mounted now too (excuse the crappy photo) and I have made a mount for the windshield defroster.
10-24-12, 02:02 PM
#49
Im speechless....... This must be my lucky month, Ive been curious about miata engines in rx7s for a long time now, and this is the second one Ive found within the week. Its not an FC, but at least it falls within my requirements of needing to be a true racecar.
So cool. I understand everything your doing and why. so happy to follow this build, congrats!
So cool. I understand everything your doing and why. so happy to follow this build, congrats!