GTUs 20B N/A Build Thread

Christopher W. · 02-18-2011, 11:40 PM

Dude!! That is ridiculously awesome..

What are you thinking in manifold length for those?

GtoRx7 · 02-19-2011, 11:20 AM

Quote:

Originally Posted by Christopher W.

Dude!! That is ridiculously awesome..

What are you thinking in manifold length for those?

Going to start at the proven length, but the trumpets will have some adjustment. That way the length of the semi p-ports and main throttles can be changed on the dyno to find the sweet spots

need RX7 · 02-19-2011, 01:46 PM

Amazing.

Christopher W. · 05-20-2011, 05:33 PM

It seems that Logan keeps making new gains in HP with his ongoing R&D.

Sooo, I decided long ago that I was going to go all the way and do a slightly wider wide body for my car. The only front fenders I have an interest in are the Mariah Motorsports front wide fender. It is 1.25" wider per side and it keeps the basic lines that Mazda produced. It is also very high quality..

I pretty much can't stand any of the current stupid drifter looking garbage that I see done to second gens..puke.

I did always like the Tri-Point but that is gone and it was a bit to radical for this particular car.

So, I found a guy in St. Louis that I really resonate with. His name is Doug Jenkins and he is phenomenal.

http://www.dougjenkinsgarage.com/main/

This guy loves what he does and is super anal about his work and rep. I got him to go pick up the car from Logan and he has started.

We are using the Mariah fenders in front. I also bought a Shine Auto front air dam lip. I am having Doug file in the air vents along the bottom of the air dam. I guess they are for brake ducts or something. They look to me like they would just cause turbulence. I will also have the stock front lip available if I don't like the Shine piece or if I want a little higher front clearance.

For the rear we are doing the fenders in metal and we will make them about two inches wider. I hope to get a 305 under the fenders. I will be happy with a 295 though. I am doing a 17 front and an 18 rear wheel.

The rear fenders are to mimic the front in appearance. I want the car to look a little wider but not much different than stock. I think many people will not even know that anything has been changed.

Doug is also doing a super high quality original color paint job. The fender wells will be completely finished out as well.

So here we go. It was a little scary having someone hack up the car but I trust Doug.

The work is done in metal. There is a little filler used to cover up the wheel scratches but the work is in metal. The entire car will be taken down to the metal before paint

Doug should be done in about 1.5 months and the car will be going back to Logan's for the final engine work.

My car will be done this summer..... Right Logan??

hades · 05-20-2011, 08:33 PM

very cool.

Christopher W. · 05-28-2011, 11:51 AM

More pics from Doug. She's got some hips on her now!!

The vent shown is the cut out vent of the Shine Auto air dam. It is now smooth but I don't have any pictures yet. Next Doug will get the front fenders perfect then finish out the fender liners and then on to paint.

I think that it is turning out as perfect as I imagined.

The front fenders are 1.25" wider. The rear are 2" wider. I would like to get a 10" and 12" wheel to fit under the fender. That might be pushing it on the front. Maybe doing a 11.5" and a 9.5" will work. Or maybe a 12" and 9.5". Hell I don't know. I am getting custom wheels so the offset won't have to be a compromise.

I don't really know how the car will handle on the limit with a 2" stagger... much less a 2.5" stagger. I don't want this to be a understeer pig. Maybe I should just stuff as much tire under as I can and dial in the steering the best I can. Everything is just a starting point until it hits the road.

I plan on spending time at Hallett Motor Racing Circuit in north east Oklahoma with someone who can really help me set this car up. I won't have a hodge podge of parts that don't work together.

http://www.hallettracing.net/

02-19-2011, 01:46 PM	#3
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Amazing. __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

05-20-2011, 05:33 PM	#4
Christopher W. Rotary Fan in Training Join Date: Mar 2008 Posts: 98 Rep Power: 18	It seems that Logan keeps making new gains in HP with his ongoing R&D. Sooo, I decided long ago that I was going to go all the way and do a slightly wider wide body for my car. The only front fenders I have an interest in are the Mariah Motorsports front wide fender. It is 1.25" wider per side and it keeps the basic lines that Mazda produced. It is also very high quality.. I pretty much can't stand any of the current stupid drifter looking garbage that I see done to second gens..puke. I did always like the Tri-Point but that is gone and it was a bit to radical for this particular car. So, I found a guy in St. Louis that I really resonate with. His name is Doug Jenkins and he is phenomenal. http://www.dougjenkinsgarage.com/main/ This guy loves what he does and is super anal about his work and rep. I got him to go pick up the car from Logan and he has started. We are using the Mariah fenders in front. I also bought a Shine Auto front air dam lip. I am having Doug file in the air vents along the bottom of the air dam. I guess they are for brake ducts or something. They look to me like they would just cause turbulence. I will also have the stock front lip available if I don't like the Shine piece or if I want a little higher front clearance. For the rear we are doing the fenders in metal and we will make them about two inches wider. I hope to get a 305 under the fenders. I will be happy with a 295 though. I am doing a 17 front and an 18 rear wheel. The rear fenders are to mimic the front in appearance. I want the car to look a little wider but not much different than stock. I think many people will not even know that anything has been changed. Doug is also doing a super high quality original color paint job. The fender wells will be completely finished out as well. So here we go. It was a little scary having someone hack up the car but I trust Doug. The work is done in metal. There is a little filler used to cover up the wheel scratches but the work is in metal. The entire car will be taken down to the metal before paint Doug should be done in about 1.5 months and the car will be going back to Logan's for the final engine work. My car will be done this summer..... Right Logan?? Last edited by Christopher W.; 05-20-2011 at 06:13 PM.

05-20-2011, 08:33 PM	#5
hades Rotary Fanatic Join Date: Mar 2008 Location: Freedom Land Posts: 316 Rep Power: 18	very cool. __________________ This is going to tear

05-28-2011, 11:51 AM	#6
Christopher W. Rotary Fan in Training Join Date: Mar 2008 Posts: 98 Rep Power: 18	More pics from Doug. She's got some hips on her now!! The vent shown is the cut out vent of the Shine Auto air dam. It is now smooth but I don't have any pictures yet. Next Doug will get the front fenders perfect then finish out the fender liners and then on to paint. I think that it is turning out as perfect as I imagined. The front fenders are 1.25" wider. The rear are 2" wider. I would like to get a 10" and 12" wheel to fit under the fender. That might be pushing it on the front. Maybe doing a 11.5" and a 9.5" will work. Or maybe a 12" and 9.5". Hell I don't know. I am getting custom wheels so the offset won't have to be a compromise. I don't really know how the car will handle on the limit with a 2" stagger... much less a 2.5" stagger. I don't want this to be a understeer pig. Maybe I should just stuff as much tire under as I can and dial in the steering the best I can. Everything is just a starting point until it hits the road. I plan on spending time at Hallett Motor Racing Circuit in north east Oklahoma with someone who can really help me set this car up. I won't have a hodge podge of parts that don't work together. http://www.hallettracing.net/ Last edited by Christopher W.; 05-28-2011 at 11:57 AM.

02-18-2011, 11:40 PM	#1
Christopher W. Rotary Fan in Training Join Date: Mar 2008 Posts: 98 Rep Power: 18	Dude!! That is ridiculously awesome.. What are you thinking in manifold length for those?