8/5/05 Let the Modifications begin

Click here to go to bottom of page to see latest update (10/30/07)

Widefoot Racing gas pedal attachment (for better heal and toe downshifting/rev matching), david@widefootracing.com:

Autometer RPM ACTIVATED SWITCH (#105-5310) to control SHIFT LITE 12 LED BLACK (#105-5332):

3 Autometer Ultra-Lite Gauges:

ULTRA-LITE OIL 100PSI (#105-4327)
ULTRA-LITE WATER 100-250 (#105-4337)
ULTRA-LITE OIL TEMP 300 (#105-4348)

2 gauge pod over center channel:

Stainless steel brake lines:

Porterfield R4-S brake pads AP331 $ 79.95 AP332 $ 69.95

Yokahama AO32R 245/45/16:

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Cusco strut tower brace:

Suspension Techniques front 1 1/4 inch Diameter Anti-Sway Bar and Mazdatrix "Heim-joint", adjustable end-links:

Widefoot Racing heavy duty sway bar mount (my car is missing this mount and stock ones break), david@widefootracing.com:

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Mazda R1 lip:

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1/21/06 Setrab Oil Cooler Installation

The billet adapter (above the oil filter) is sold by LG Motorsports for $99. It has a provision for a sending unit (i used it for oil temp).

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This shows the location of the oil temperature sending unit.

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Mike used a circular table saw to make the clean cuts (left side).

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So pretty.

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Oh its a front mount intercooler ....NOT!

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Notes:

1) 1/8'' NPT to M12 x 1.5 -- this is what the autometer oil temp sending unit goes into, which in turn goes into the LG adapter (but this had to be drilled out slightly so the sending unit would fit).
2) Radiused Pump Fitting. -8AN Port to -10AN Hose --this is what goes into the LG adapter

Here are pics I took when I first got the parts ( I did not use the T configuration). The blue fittings in the pics weren't used because I put the big oil pressure sending unit in the stock location behind the intake manifold, and I just put the smaller oil temp sending unit directly in the LG adapter.
http://209.177.55.37/images/rx7/IMG_1844.jpg
http://209.177.55.37/images/rx7/IMG_1845.jpg
http://209.177.55.37/images/rx7/IMG_1846.jpg
http://209.177.55.37/images/rx7/IMG_1847.jpg

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2/18/06 Kaaz Differential adjusted from 100% locking to 33%. 4.10 gears replaced with 3.90 gears.

Diagram showing how to set up the Kaaz

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2/22/06

I acquired some SSR Competition wheels in sizes 17x8.5 for the fronts and 17x9.5 for the rear, both with 42 mm backspacing. The stock wheels (16x8) with tires (245-45-16) weigh 44 lbs. The SSR fronts with 245-40-17's weigh 43.5 lbs and the rears with 275-40-17 weigh 46 lbs.

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3/16 MazdaSpeed adjustable coilover shocks and Eibach springs

Thanks Dave for doing the install. Nice work as always! The shocks were built by KYB to Mazdaspeed's specifications. 4 way adjustable shocks. Adjustable ride height. Front springs are 340 lbs/in and rear springs are 280 lbs/in. I found this info on the web about these coilovers:

 `Ride-Height Adjustable Suspension Unit` for the FD3S body style RX-7 (93-95) by the absolute best in Mazda Performance, Mazdaspeed.
The shocks are four-way adjustable and ride height can be adjusted as well. The ride height can be lowered 25mm  lower than the stock ride height and raised 10mm over the standard ride height.  The front springs are setup at 5kg/mm and 4.05kg/mm for the rear. The upper mounts are the OEM units. The items are the B-Spec setup with the part number 9CD6 30 001 and retail for JPY198,000 (approximately $1800).

Fronts springs (QCD634011A 08.00) are about 9.5 inches long

Rears springs (QCD628011A 43.99) are about 11 incles long.

uninstalled pictures of the shocks here

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4/2/07 Found some info about the Mazdaspeed Coilovers from www.fdnewbieimports.com.

• Spring rates are variable and are listed as:
• Front Primary - 6.63 Kgf/mm or 65 N/mm or (374 lb/in)*
• Front Secondary - 7.3 Kgf/mm or 71.6 N/mm or (412 lb/in)*
• Rear Primary- 4.83 Kgf/mm or 47.3 N/mm or (272 lb/in)*
• Rear Secondary - 5.1 Kgf/mm or 50 N/mm or (287 lb/in)*
  
  * ( I did the conversion to lb/in so I hope it is correct )

Two pics from FDnewbie parts: pic 1, pic 2

And this almost matches what Wilson sent me:

Spring rate front primary 282 lbs/inch -differs from above info.
Spring rate front secondary 412 - same as above info.
Spring rate rear primary 229 - differs from above info.
Spring rate rear secondary 288 - same as above info.
Front bump damping force at 12 in/s shaft velocity: 4 settings from 229 to 267 lbs
Front rebound at 12 in/s : 4 settings from 667 to 778 lbs
Rear bump 4 settings from 178 to 222 lbs
Rear rebound 4 settings from 600 to 778 lbs
Ride height change compared with stock: +1/2in to -1in
Means of adjustment: turning knob on damper unit, accessible without removing wheel

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Just for reference, here are populare spring rates. As you can see, the Mazdaspeeds that I have are on the soft side:

kg/mm	lbs/in
18	1008
16	896
14	784
12	672
11	616
10	558	popular front
9	504
8	447	popular rear
7	392
6	336
stock RX7	263 front
stock RX7	195 rear

10/30/07 Swapped out the Setrab oil cooler for an Earls oil cooler. pic1, pic2, pic3, pic4, pic5

Swapped out the MazdaSpeed Coilovers for JRZ adjustable coilovers.

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