clavier

Mike had nothing to do with it. Randy (his dad) set up the dyno for me and I did all my own tuning.

Jon's car was preset from the factory so all we did with his was a base run or three.

Mine was a different story and I spent several hours on it tuning the E-Manage. I left Altered at 225 HP at 6 PSI. I subsequently figured out how to use the Profec E-01 and got my boost up to 9 PSI where I wanted it.
At some point I'll get back to the dyno for a fine tune and peak run.

I don't know Mike really, but most of the cars that come and go from Altered (mostly Mitsu) are mighty powerful and don't seem to break.

Icemastr

iTrader: (2)

Tuning piston engined cars has some big differences compared to rotaries. Even "experienced" rotary tuners have blown lots of motors and there are several out there I would never take my car too. Just ask ErnieT. There are only a few people in the USA that I would take a turbo 13B to for a dyno tune. It still remains to be seen what the margin of error will be like tuning the renesis but if you don't know what the differences between tuning a rotary and a regular piston engine are you might want to spend some time reading up on RX7club.com about it or talking to someone like Demetrious or Ralph (Xcessive). Just because a shop has tuned lots of high power mitsubishi's doesn't mean they can tune a 13B properly. Sure they might be able to get a lot of HP out of it but how long will the motor last, and blowing motors during dyno tuning (or just doing a dyno run) isn't exactly uncommon.

XSTransAm

that and ive seen alot of piston engines come out of altered not looking or driving so well themselfs

"Mike had nothing to do with it. Randy (his dad) set up the dyno for me and I did all my own tuning."

and fwiw im sorry you had to deal with randy. He really shouldent be allowed at the shop.

RE-Amemiya

I thought those made 238hp stock.

the_glass_man

iTrader: (2)

Somebody ******* shoot me now! PLEASE!!!
Stop the insanity!!!

SDRacer87

Yes man, to the motor. That is not (and never has been) dyno hp.

clavier

Heh heh.

Randy is not so bad. Anyway, all I had him do was mash the gas until redline and then let go. Kinda hard to screw that up.

Jon (the other turbo '8 owner at the session) mentioned that he wants to hook up with Demetrius at his shop at some point. I'll probably tag along.

PoLaK

Ah you let them drive your car on the dyno..... TurboTrix and KD Rotary both let me drive my car, I like the red and green buttons

Rx8club is takin over

XSTransAm

Its kinda hard to mess anything up on a roller dyno, we never let any customers drive their own on our dyno though. But a big factor in that is being able to let off the gas if we see afrs get scary or boost start going nuts.

XSTransAm

Yeah I wouldent mind having D look at my car one of these days, Im confident in my tuning, but their is something to be said for his many years of practice. Too bad his prices are a bit out of my range.

flipSTREAM

I'm waiting to see what the others have to offer... then, let the choices begin..

StealthFox

iTrader: (2)

yeah theres a few more tubos and a few forced induction kits coming out in the next 2 months. namely HKS s/c which is supposedly adding 90hp

NEMESIS8

Yes, the HKS will also deplete your piggy bank at the same time. I heard $7 large for that SC setup. They did add a new aluminum intake manifold though...

mcnannay

How many miles are you guys expecting to get on those engines?? I've read that most of the test cars for the turbos didn't fare very well in durability.

Cam75

Where did you read this at. Many RX8Club member have done diligent research and I cant recall reading any of such durability issues for the finished product.

clavier

Well, since I put about 60,000 miles on the MX-3 with the turbo (30,000 on the KL motor without it - 40k more on the original before I swapped up) and it was in perfect condition when I sold it; and I've put about 32,000 miles on the turbo in my 70,000 mile Miata; and my Accord had 110,000 miles on it when I traded it - 42,000 of those with the turbo;
I'd guess that I'll put about 60,000 miles on the RX-8 (beyond the 20k I already have) and sell it in immaculate condition.
Or, maybe I'll keep it - in which case I'd think that 110,000 to 140,000 miles is reasonable for an engine in mechanically sympathetic hands.

In fact, the only turbo motors I've had issues with have been the cars with OEM turbos!
My Conquest ate its rod bearings at 35,000 easy miles. My Saab went back to the dealership after 3 turbo-related failures before 15,000 miles and my LeBaron...
Well, I won't talk about the LeBaron.

rotarygod

iTrader: (1)

Just to give some people an idea of how the numbers actually look, we need a frame of reference. The stock 3rd gen had more than 7 lbs boost and only got around 215-220 or so at the wheels. Obviously with a downpipe and no cat and some tuning they could easily get higher. These RX-8's also had the cats and stock mufflers. That seems respectable. I can't wait to see other systems in the future after that damn ecu gets fooled better or replaced. The stock 3rd gen did admittedly have small restrictive turbos but the Greddy kit has a turbo that's pretty close in size to a stock T-II unit. Maybe just a tad larger. Still too small for big numbers but a good comparison never the less.

flipSTREAM

A-spec is also coming out w/ their turbo.. summer 05.. might be worth lookin at...

NEMESIS8

http://www.speedforceracing.com/prod...x8turbokit.php

Initial Dyno the injectors started to run out of gas and go lean so they shut it off. They claim 292 at the wheels with larger secondaries using a Rick Shaw.

Klar

The FD's stock exhaust system is way more restrictive than the RX8s. So comparing those two won't work.

Oh and that dyno looks like *** for a rotary, way too bumpy.

NEMESIS8

That's the main grip we have. The ECU/PCM has a screwed up map. We are waiting for Racing Beat to get it fixed.

StealthFox

iTrader: (2)

dam rx8 computer...too smart. also nemesis, have the air filter probs with the 8 been cleared up yet? i remember last i was there a couple months ago ppl were having ecu/filter conflicts. good thing i wont be getting an 8 for a few years so by then there will be no guessing and blind choosing of performance aftermarket and the current probems (should be) solved.

NEMESIS8

Most of the filter problems were from the K&N typhoon intake - erractic idle issues mainly. A bunch of us dynoed Saturday. Stock N/A 8's ranged from 184-206. So the PCM is a weird thing on this car. Why such a large spread? The 206 car was running leaner right off the showroom floor!

http://www.rx8club.com/showthread.php?t=53891

Beers

DriveFast7

iTrader: (1)

And people think carburettors are problems! Couldn't resist. Hope someone cracks the ECU code and can re map it to heart's content.

kiyoshi

Something I've read on Knightsports forum was that there was durability issue on their supercharger RX-8 which added around 50 HP to the stock motor. They said the moter worn out pretty quickly when they rev the motor often up to the redline. I don't know if they solved it or not. But they said it ran like a racing machine and couldn't resist! Anyway, so I feel turbo'ed RX-8 might have sort of similar issue too.