Eric F

I do think Mazda used the two sensors to detect a broken or slipping belt. I agree the most difficult thing about increasing the performance of our engines is the ECU. Part of that is not much development has been done on our engines yet compared to Hondas. So we don't have the benefit of our ECU's being completely hacked.

bluestreak1.8t

actually i jhave some good news to all gen 3 proto owners.....the mazda miata 1.8 cam gears will fit the proto...the stock #'s are the same .... i found this out for the fact of that i wanted to advance the cam gears not ignition....not yet that is....i'm going to get the jet thingy.....anyway...thumbs up to the guy who new i was talking about cam gears......oh and 1 more thing unorthadox racing cam gears are 345 a piece

Eric F

Simple deduction. I think adjusting cam timing is more useful for tuning than ignition timing anyway. Where did you find out that the BP (Miata) cam gears are the same as the FP/FS (Protege) engines? Mazda Motorsports lists an adjustable cam pulley for the '94-'01 Miata & '90-'98 1.8L Proteges, but not for the '99+ Proteges.

Traveler

Yeah, the OBDII stuff sucks. But there are ways to tune around it without removing it. Unichip can tune the WOT stuff and that's what we all really want anyway. As for cam phasing, you might be able to pull out a few more HP by shifting the valve events around but not much more. Most cars in our HP range that I've seen the dyno plots for shifted the HP higher in the RPM range and increased it 4-5 HP. Not really much gain for all the work. The point adjustables really come into play is when you go to much larger cams and want to get the phasing perfect for maximum power. I'm just going to leave mine alone for now and get my supercharger done.

dynamho

Sorry to be off the thread.

Hey Traveler, please let me know how the supercharging goes. I'm interested in that as well. What kind of blower have you decided or are contemplating about?

DBR

if you buy a stand-alone ECU, can you set it up in one day, or does it take endless fliddling to get it right? say you want to alter 5% of the ECU programming, can the other 95% be directly transferred from the OEM ECU into the stand-alone, or do you have to program it 100% from scratch?

the flying miata site has a history of their stand-alone ECU program upgrades, and it seems a bit discouraging, that they are constantly fixing glitches in their prior programs:

http://www.flyingmiata.com/support/e...on_history.asp

is the initial set up of a stand-alone ECU a lot easier said than done?

bluestreak1.8t

how i found out was......i work for dodge and i was interested in cam gears for my car so i called our sister dealership which was mazda to ask the question if the miata cam gears would fit the protege.....well the girl looked into it and to her suprise the gears where the same stock # on both in the matter of fact allot of stuff is.........anyway......thats what alittle research does for you...

Eric F

bluestreak1.8t, thanks for the info. I'll call Mazda Motorsports and see if I can confirm that before anyone starts ordering parts.

Traveler

Eaton M62 off a series one Buick/Olds/Pontiac. They came on the 3.8L v-6's. It already is internally bypassed and they're inexpensive used and easy to rebuild (although they only need it if they are really high mileage). I picked one up a couple weeks ago for only $235 shipped. It's in good shape so all I'll have to do is clean the rotors off. They get the brown layer you see on the inside of a valve cover because GM recirculates the crankcase vapor through them. All you have to do is spray carb cleaner on them and it comes right off.

chdesign

Eric hav eyou checked on that Part# similarity yet? I coudl really benifit from some advanced timing on my intake cam.

Eric F

Traveler, the M62 is a pretty large displacement blower for our engines don't you think? Are you going to be able to fabricate pulleys that will over drive the blower enough to produce boost at a low enough RPM on our motors?

Craig,
Mazda Motorsports is saying they're closed. They must have gone to lunch early or something?

dynamho

Yes, I'm thinking the M45 may be more appropriate. Yet, if M62 can be succesfully installed, wouldn't it provide stronger boost levels?

1fatEs

hey if any one finds out if there is cam gears for are cars or if the ones off the miata fits let me know and i will go get them and dyno my car soon

Traveler

Actually, the M62 is supposed to fit engines ranging from 2.0 to 4.0 liters according to Eaton. The M45 is a good one for our engines, but starts to lose efficiency and heat up as you push the boost up. The M62 should be right in the middle of it's efficiency map at 7 psi which is what I want to run, and it moves a lot of air at that pressure. Only takes 7-8 HP to run it at max boost.

As for the pulley, if I ran the stock pulley that comes on it, I'd be pushing 14-15 psi instantaneously. We need a LARGER pulley by quite a bit. I'll use the pulley on the motor that runs the water pump and alternator, and approx a 3 1/2" diameter pulley on the blower. I know it's a 4 rib belt, but it will work fine unless I want to run 12 psi and then I'd have to change to a 5 rib.

Buick/Olds/and Pontiac quit using the M62 after 1995 because it proved to be too small for what they wanted on the 3.8 Mathematically it should have been perfect, but in actuality it proved to be a bit small so they stepped up to the M90.

The M62 will move more air at a given boost level than the M45 which is why I want to use it. It's more efficient at 7 psi than the M45 at moving more air.

chdesign

I would highly recommend NOT going over 7 psi on a stock FS-DE without stand alone engine managment then I would say you might be able to push 10 psi. Everyone thinks that you can run more boost with a supercharger.....Pressure is Pressure whether it comes from a blower or turbo its still pressure.