MX5World

Performance Forum

Jackson Racing Supercharger

AutoShrine Sponsor
AutoShrine Sponsor
AutoShrine Sponsor

mimssandi Avatar
mimssandi Roger & Sandra Hobart
Mims, Fla, USA   USA
My son did the work on his car. He is an ASE master tech. He gave up our TR4A project to buy the Mazda. First mod was a lightened flywheel and header, done at the same time. Then came the Borla exhaust. Boss Frog roll bars were next. The flywheel header combo improved acceleration immensely. Then he added the supercharger and water inter cooler. Water reservoir is the header tank for the radiator with a small electric pump. Then we added a K&N air filter, home made cool air inlet trap and heat shieldng over the header. We were autocrossing the car. We could not turn or stop, so lighter wheels and slicks were next for race days. We could use a lot stickier slick but can not afford them. Then slotted and cross drilled rotors and metallic brake pads. We had to add a Kirkey seat and 5 point harness to get times to come down when racing. The one time it was dynoed, we were making 156 at the rear wheel with a warped head and slightly blown head gasket. When we fixed the head, it had to be shaved .070 (the max for this head). Now we think we have nearly 200 hp at the rear wheels. On the street, we can not seriously get on it until about 3000 in 2nd. Full throttle in 1st gives a right side slide because of a melting rubber no traction condition. Power shifting to 2nd and full throttle does the same thing until the car speed starts to catch up to the tires. So, we go easy. Easy driving yields average 26 to 28 mpg. The car will hit the electronic throttle stop at 132.5. We drive daily on Kumho soft compound tires and replace them around 30,000 miles. The car has not had the bottom end done and is at 160,000 miles now.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <

Attachments:
IMG_0515.JPG    39.7 KB
IMG_0515.JPG

IMG_0516.JPG    42.6 KB
Sign In or Register to view this photo
IMG_0517.JPG    37.6 KB
Sign In or Register to view this photo
mimssandi Avatar
mimssandi Roger & Sandra Hobart
Mims, Fla, USA   USA
Forgot to add that the car has been lowered and has adjustable shocks, too. I do not know if I would go much over 100 in a Miata that was not lowered. It holds the road very nicely at these speeds. Down side - speed bumps beat the hell out of the frame. I think we took it down 1.25 inches.

NW Bill Bill K
Portland, Oregon, USA   USA
In reply to # 92821 by mimssandi Down side - speed bumps beat the hell out of the frame. I think we took it down 1.25 inches.

Have you considered adding frame rail reinforcements -- they not only stiffen the chassis but protect the fairly fragile frame rails. For examples, take a look at:

http://www.flyinmiata.com/index.php?dept=15http://www.flyinmiata.com/index.php?dept=15

http://949racing.com/roll-bar-chassis-braces.aspx

http://www.gomiata.com/mibofrfrafrr.html

http://www.good-win-racing.com/Mazda-Performance-Part/61-00603.html

http://www.mossmiata.com/Shop/ViewProducts.aspx?PlateIndexID=91388&SortOrder=10

http://miataroadster.com/jass_performance/jass_performance_frame_rails/jasframe_rails/i-546156.aspx

http://www.v8roadsters.com/product-p/frmr.htm

Bill
(who for years drove a TR-4 (with Surrey Top) and TR-4A (with soft top))



Edited 3 time(s). Last edit at 2013-06-23 12:33 AM by NW Bill.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <
miatalove1369 David King
Salisbury, MARYLAND, USA   USA
Would you be willing to sell your jackson racing supercharger. ....im sure not....do you know where i can get one

mimssandi Avatar
mimssandi Roger & Sandra Hobart
Mims, Fla, USA   USA
Sold it a while back, put in a spec miata engine. Moss has JR superchargers new. Otherwise, craig's list or ebay.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <

To add your reply, or post your own questions

Members Sign In   or   Create an Account

Registration is FREE and takes less than a minute!


Having trouble posting or changing forum settings?
Read the Forum Help (FAQ) or contact the webmaster





Join The Club

Sign in to ask questions, share photos, and access all website features

Your Cars

2001 Mazda MX 5

Text Size

Larger Smaller
Reset Save

Sponsor Links