I want more turbo boost at lower RPM's.
2006-10-31 14:59:10 · 4 answers · asked by areedaf 1 in Cars & Transportation ➔ Car Makes ➔ Mazda
adjust wastegate control
2006-10-31 15:30:53 · answer #1 · answered by spencer 3 · 0⤊ 0⤋
To change boost will will need an after market boost control. Turbo II's can be quite fast but you cant really make the boost come on at lower rpms. Change your driving style to keep the car in the higher rpm range. A free flow exhasut is the biggest power bang for the buck and it will make the factory turbo spool faster = more power sooner. Read up on it at the rx7club.com to see what you can do to it. Racing Beat makes a great RX exhaust system. Take your mufflers off and see if you like what the car does before you spend big cash on exhausts though. That should add about 10 hp if you are on stockers. Repalce the cats for 20 more and a serious change in spool rates. Remember that you can only add so much boost before a retune or rotary go BOOM!
2006-11-03 15:45:31 · answer #2 · answered by keynote22 1 · 0⤊ 0⤋
You can't turn up the boost at lower RPMs. All you can do is increase maximum boost levels. You would have to downsize your turbo, and/or shorten the intake runner length to your TB from your turbo. Like it or not, your car is only making so much exhaust, and that force can only be translated so fast to the turbo. Likewise, a smaller turbo will spool quicker translating to increased low end torque. A smaller turbo will reduce your topend power. A rotary engine is not exactly a torque monster. Throw a SBC in there or something if you want torque,
2006-11-01 01:49:33 · answer #3 · answered by KEiKo 3 · 0⤊ 0⤋
Forget about boost, there are too many problems with this as has been aforementioned in the other posts. You are probably upset about the amount of turbo lag you are experiencing with your stock turbo. If you want to spool up faster either 1. get a smaller turbo, or 2. look into a ball bearing turbo, as they spool much quicker. Ball bearing turbos are great because they have quicker boost response. The ballbearings have much less rolling resistance than a standard flat bearing, so they respond more quickly to exhaust gas impulses. Hence quicker turbo spool up and spool down. Also ball bearing turbos have increased bearing durability/longevity: Ballbearing turbos have better resistance to oil coking when shut down hot. This doesn't mean they're immune to bearing failure though.
Anyway there are lots of ways to reduce lag, and this is just one of them.
2006-11-02 08:56:39 · answer #4 · answered by wackywallwalker 5 · 0⤊ 0⤋