R3. T Rally Car(Clover, SC ) January 2. Reinforcing its position as a leader in the design and manufacture of competition brake systems, PFC Brakes has been chosen as official brake supplier to Renault Sport Technologies for its new Clio R. RX7 1st Gen Performance Page. Introduction: This page is dedicated to. A engine Mazda RX7 performance modifications aimed mainly. There aren't many. I thought I'd share this with you die- hards. Many of these things work well for certain club racing and autox. Nothing is more surprising. E- Mod, or fined for mods that you were. No one cares that you didn't know the rules - they want to. Anyway, I have worked on quite a few 1st gen cars. I have had, good and not so good.
Over time, I will add some B& W pics (to speed. It is broken down into: CHASSIS/SUSPENSIONUnibody: The stock Mazda. Reportedly. it had a torsional rigidity of 6,7. Not bad considering. RX3 (a real kick- ass ITA car. The rigidity of the chassis can be further improved by seam. Every StopTech Balanced Big Brake Kit is engineered to produce that optimal balance using caliper bores and pistons specifically selected and tested for each vehicle. Brembo GT Slotted Brake Kit; High Performance Brake Pads; Optional Caliper Colors Available for Select Vehicles; Add massive stopping power and show-stopping looks. Welcome to Mazdatrix Mazda RX7 and Rotary Engine Parts and Accessories 2730 Gundry Ave.Signal Hill, Ca. 90755 562-426-7960 For Parts Ordering. Ksport big brake kits provide the ultimate in stopping power for your vehicle. Integrating new brake technology into the design of the kits allows for a kit. Don't. bother welding fenders to chassis, but concentrate on the tranny tunnel. This is illegal for. An 8 point cage. sure makes things stiff if seam welding isn't an option. Get or fabricate. Racing Beat one that triangulates to the firewall. E- Mod or outright illegal. IT racing. Even one that just ties the two towers together will add. If you intend to change camber. You can get these from Mazdatrix. Rotary Performance, Mazda. Comp, etc. Shocks: The stock suspension. The spring rates and damping are pretty soft. The best bang for the buck I have found in the marketplace. Tokico high pressure gas non- adjustable struts and cartridges . The '7. 9/8. 0 front strut housings are. Illuminas won't. work unless you shim the length - and longer housings are just a ticket. You are better off bolting on the later housings and. Tokico. Illuminas, and it's still not a bad idea anyway. I have had less than wonderful. OE wet struts too. If you must have Illuminas, there are two types. HBZ1. 08. 6 - actually designed for an MR2) for a. HBZ1. 06. 9) one that is suitable for the street and autocross. There is only one rear flavor Illumina. I know of. Springs: The OE springs. The. stock spring rates are really soft - and this is nice and comfortable. We. want to hit that happy medium. I have. also had good experience with the Suspension Techniques springs (also < $1. I have zero experiance. Racing Beat springs as of the last update to this page. These. springs, in combination with the Tokico shocks, offer a streetable ride. Be careful lowering the car too much. If you have to cut the rear bump stops. Some folks have fair results by cutting a coil. OE spring. At this point, your OE spring is 1. NEW springs isn't such a. If you must cut them, use a cutoff wheel so you don't ruin the. Bushings: The OE rubber. Afterall, they are also over 1. By the time I was 1. I was pretty rotten. The Energy Suspension strut (aka tension) rod and control. The rear bushings are. Some folks have experimented with urethane bushings. I have had no 1st person. If you are compelled to modify this, I have been. EFI 1. 3B GSL. The ride will become. Mazdacomp now offers the aforementioned urethane link bushings. I would be very careful using these in the upper links. Ground Control. (see links) has a funky three link rear conversion that reportedly works. The idler arm bushings get worn out pretty regularly. These bushings are cheap, but live next to the exhaust manifold. They are very easy to replace, so. The Mazda ball joints are pressed into the control arm, and. If in. doubt, you can get new control arms (with new ball joints already pressed. Mazda Comp. Sometimes, self installed ball joint will loosen in. Replacing these. items will make the steering, in conjunction with idler arm bushing and. Watts Link: This is usually. As such, it introduces. The more. the suspension ride height is altered, the more problems this will cause. The Ground Control 3 link kit is again an option here. The Tri- Link setup from. Tri- Link is also a very nice kit. Unless you radically lower the car, just leave. Watts link be. Speedsource and Mazdacomp offer an adjustable heim jointed. Watts link (in the $2. Steering Box: The early. You'd wear out too, if you had no lube (I use GL4). That nylon. 'bolt' is the filler. The later boxes require careful adjustment. I use. the screw for very fine adjustment. If you make it too tight, it will wear. I have had good success using a power steering box (with. Steering is a bit harder in traffic. Beware. Swaybars: The OE front. I like the Ground Control. The rear bar should be no larger than. This is a nice upgrade to the S model cars that. That's the one I have on my EFI 1. B. I use a OE GSL bar on. Spec RX7 racer. Many folks with stiff suspensions drop the rear bar. Wheels/Tires: There's. OE 1. 3. As a matter of fact, I like. They are strong and durable, but there's. At least Yokohama remembers this and they continue to make the AVS. A5. 09s. The AVS is noticeably better in wet conditions, and both have. DOT approved race tires (R1s, Proxes RA1, Hoosiers). BUT do not belong on the road. They really are. a singular purpose tire that requires a certain level of heat buildup to. Save 'em for the races. Oh, yeah. they tend to be LOUD and STIFF. I have a set of 1. An alternative. to expensive, limited availability mags are steel circle track wheels. They are available in a variety of widths, offsets, and diameters. Cheap. prices, great performance. Steel wheels are advertised in Circle Track. Diamond Racing offers some very. If you bend one of these Circle track. I understand that American. Racing no longer offers wheels in a 4x. There's always Panasports if you have the cash! Other folks have updated their 1. A cars with GSL- SE. This gains you the advantage of larger. These parts. are bolt in items for the 1. A cars, but early cars need to pay attention. Alignment: There are a. Mazda's handling for particular. Mazda's factory alignment specs are just swell. Burger King or King Soopers, but are not so swell for other. First, factory camber specs on the 1st gen are. Try rotating the upper strut mounts. This will decrease camber to a better spec. Caster affects. the car's stability. A little more caster can't hurt - and this can be. It is beneficial to have these adjustments done equally. Get what you can as long as they are symmetrical. Toe affects. the car's stability also. Toe out, simplistically explained, has tire slip. Conversely. toe in has slip angles that make the car more stable (bisecting slip angles). I like mine with 1/1. When it is properly rebuilt and adjusted. I prefer the. HYGRADE rebuild kit (p/n 1. Nikkis. The '7. 9 carbs have. Todd Hornsby has outlined Nikki mods in a really good webpage. I don't have to. See Todd's webpage in my links section. The '7. 9/8. 0 intake manifolds are the better flowing. ACV under the primary intakes on the later cars. The important thing here is to get the shuttervalve. Another tip - port match. I have had good results with the Mikuni 4. PHH. on the 1. 2A motor. This is an excellent carburetor, and gives quite a bit. Nikki. They have. Dellorto). These carbs are prone. This setup, even with a stock. I surprised. myself with a tired 1. A and a full exhaust with this carb setup - major. Stock or mildly ported 1. A jetting for 4. 4 Mikuni. PHH: Venturi: 3. 9mm. Main fuel: #2. 00. Main air: #2. 40pilot (idle) jet: #6. OAThe Weber IDA series is a proven HP maker, but. They, as far as I know, are. The Dellorto and Weber DCOE are very similar to. Mikuni. Only the DCOE Weber is still available. The stock Nikki will not tolerate more than about. If you upgrade your fuel pump to something. Carter, Holley or Mallory electric type), do yourself. ENGINESure, everyone wants a 1. B. The Mazdatrix catalog. A car. so I won't reflect on it. The nicest of the 1. B n/a motors is likely to. They have factory high compression rotors, a light flywheel. The older four port. The 1. 2A engines have minor differences which can. The '7. 9- 8. 2 cars have heavier. The '8. 3- 8. 5 cars have lighter. If you choose to mix/match flywheels. These flywheels have a 2. It is also essential to have the rotating assembly balanced (Roger. Mandeville did mine - and this is my car's brush with greatness). Mazda Comp sells a rotor housing with factory. As, but with a modern 1. A casting. surrounding it. No cheating if you are a racer! You won't fool veteran. A Mazda has been around a long time and it will be quite. Street porting works very well for a street. No sense having monster ports with. OE exhaust and carb. I do not very much like the OE Mazda water/oil. The seemingly perpetual o- ring oil leakage and the marginal heat. The early '7. 9- 8. I have had good. success with the oil cooler out in front of the later '8. You. will have to fabricate oil lines, trim the radiator bracket, and fabricate. Oil coolers - for you lunatics that overheat your. RX4 cooler in place of. A one. The RX4 cooler has an extra row than the 1. MAZDATRIX for Mazda RX7, RX8, Rotary Engine Parts and.
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