BarbyCar

iTrader: (1)

My MP62 makes 167whp @ 6psi and 192crankhp.

Are you sure that dyno plot wasn't crank hp.

CoralDoc

I'm making 190rwhp with the small C15-60 Rotrex unit on a 1.8 liter engine out of a 2000. That's at 6-7psi, so I see no reason why 8 or 9 psi wouldn't net at least 10 more rwhp.

Staffah

Lets see the dyno sheet. That 190 sounds more like crank power at the 6-7 boost level. We need proof to back some of these accusations. The larger rotrex at 5psi on an 01 only makes 157whp according to 949.

flier129

iTrader: (7)

You can ask swingdancr about his old car. I don't know the full details except it made a tad over 200.

Definitely not argueing that the m45 pd s/c is better by any means lol.

chicksdigmiatas

iTrader: (11)

200 wheel with no intercooler!!!

http://forum.miata.net/vb/member.php?u=4878

flier129

iTrader: (7)

oh god what have i started.

CoralDoc

I'm not accusing anyone . I am asserting that my car produces 190.15 rear wheel horse power and 152.04 lb-ft.torque as measured towards the end of a tuning session (green line). The second line (red) is from an earlier session, before I tuned timing. The C15-60 Rotrex produced a maximum of 145kPa in my intake manifold according to the logged data on my Megasquirt, which is equal to 6.5psi boost pressure.

Feisty GoGo

You can make decent power with the 45 running overdrive pulleys. We're just finishing up a tune on my '96 with a '99 motor running the 150mm crank overlay and a 62mm nose pulley with 320cc injectors. I just switched from the PowerCard Pro to an AEM F/IC. I'll have final numbers tomorrow, but the last pull which stopped at about 6300 RPM we got peak torque of 156 and peak HP of 175 on a Mustang dyno. We're running AFRs around 11 and should get a bit more power by bringing them up to 12 or so under boost. Having the ability to take out fuel with the AEM is a real advantage when getting drivability right and successfully utilizing bigger injectors. Boost is about 8 psi according to my gauge, about 1 psi less than on the '96 motor because of the better head design. VICS switches over at 5400, but we haven't fiddled with this yet on the dyno.

The original thread was about using a supercharger on the track. I agree that Gary at Track Dog is the man when it comes to SC setups, and his intercooler ensures that you don't have to take out gobs of timing due to heat soak on the track. The beauty of an SC is that the torque curve is really flat from about 3400 RPM on--no lag, it's like having a bigger engine. A bunch of my track buddies have the Moss 62 with PowerCard and I can pull them all on the straights with my overdriven 45, even when I was using the regular PowerCard. Would I like the 62 running overdrive and the AEM? Sure, but that's not keeping me from lowering my lap times right now. My car is plenty fast and I need to be a faster better driver in those places where HP isn't the issue. Horsepower can be a crutch, and until I can turn lap times at Sears Point with the Spec Miata guys while having 50+ HP on them, then I can think about the 62.

D.dutton9512

I run the m45 with an upgraded pulley. The stock radiator should be ok but that depends on the size of your intercooler core. Mine is relatively small, covers about 50% of the radiator and my temps are fine. I'm also still on my stock clutch but only because I'm waiting till I can afford the clutch I want.

Skip the piggies. I run a MSPNP and I know three other guys who have ran the power card/timing card setup. It tends to work fine for the standard pulley setup but if you try and add a little more boost you could run into problems. With the MS1 you'll have no trouble upgrading injectors, getting your tune exactly right, etc.

johnwag

iTrader: (3)

As I wasted time reading through this thread, I couldn't stop asking myself, "Has this guy ever tracked a car?"

You have a miata. Suspension, brakes and a roll bar are all you need to have some track day fun. Make the car "track safe" and have a lot of fun driving your car. You don't need alot of power to have a solid miata.

Call gary@tdr back, per my suggestion, tell him I sent you and buy a roll bar, brake upgrades and better suspension.

02semiata

I have tracked the car a total of 5 times this season. This is also my first year of owning the car. Beside those 5 track events I have 2 more left for the season and about 13 auto x events on the car.

It's nice to keep reading all these post I am finding them helpful but I already said I am leaving the power stock and upgrading to a faster car in a few years.

O and BTW not to be a dick okay maybe a little but if you look at my build thread in my sig you would see I have a roll bar and door bars. My car is setup fine for the track.

viperormiata

iTrader: (24)

190whp with 5psi. Click here and here Super impressive for a M45, actually impressive for anything at 5psi. Granted it was very modified.

Sure it can be done. I was on the edge of 170whp with my old sebring setup and it was DAMN fast at an autocross. However, the idea of a turbo is nice but, different strokes for different folks.

Doppelgänger

iTrader: (12)

You'd be better off with a MSM turbo/manifold/dp....

I've had 2 Miatas (a 96 and a 99) that were s/c'ed with FMIC, crank overlay and 62mm pulleys with decent tuning and while they were fun, I'd take my GF's MSM over them in terms of power delivery.

02semiata

I am just going to stay stock and focus on my driving. Its always nice to see the look on peoples faces when I tell them my car is stock(power)