1996 MX-3 RS... soon to have MY BP! (X to 56k)

[smoke187]

14.5 on 21 psi that's not right

[Pox]

Unless your spinning the whole way down the track lol

[mx-3_4evr]

Disappointed... Get a 00 miata head!

[smoke187]

Unless your spinning the whole way down the track lol

hes running slicks no way he was spinning that much

[mx-3_4evr]

30psi or bust

[Shades]

Actually I did hit 30psi tonight... somethings going on under the hood, have to try and inspect it this weekend.

[mx-3_4evr]

weird...

[Shades]

Hmmm... took it out again tonight, definately putting some more power down to the street... I can spin the tires in 2nd @ 5000rpm. Never could do that before...

[psiturbo]

Mhh...!? Are you talking about with slicks on the track or on the road with street tires?

Thanks for the thread and high resolution images!

[Shades]

That was back when it was on the road... street that is.

[psiturbo]

mmhh...

Unfortunately the top end loss of power is due to insufficient head flow. All BPs have a strong midrange and weak topend. You'd need some higher lift cams at least.

With all respect Lex, I disagree...

There are 323 running 10 to 12 second passes on stock cylinder head, untouched... at similar boost or even lower!

just a few...













And this last one here is his video:

http://www.youtube.com/watch?v=7Ze4t...rom=PL&index=2

[FE3-323]

what is your AR on the hotside?

[Lex]

I think you can get a 12 second pass with no more than 250whp, good shifting and slicks out of a 323.

I have seen some of the PR machines however and they are impressive. Do you have any more links to their specs? I know there was someone with around 500whp at 30+psi.

[therieldeal]

Hmmm... took it out again tonight, definately putting some more power down to the street... I can spin the tires in 2nd @ 5000rpm. Never could do that before...

what kind of tires? i'm spinning 205-45-16 BFG g-force sport's when i hit around 5000rpm in 3rd gear. 2nd gear as a joke as soon as i hit my set boost.

i'm curious what is going on here. i see you are running mid 14's.... what kind of trap speeds?

[Shades]

what is your AR on the hotside?

This is my turbo here...

what kind of tires? i'm spinning 205-45-16 BFG g-force sport's when i hit around 5000rpm in 3rd gear. 2nd gear as a joke as soon as i hit my set boost.

i'm curious what is going on here. i see you are running mid 14's.... what kind of trap speeds?

I think my fastest trap was 97 mph... too slow. I'm loosing power in the top end which is not right for a turbo this big. She's asleep for the winter, but I'm hoping to fix her come the spring time. I was told with a turbo this big, she runs happier with more boost. I was at the track last time with about 21psi and still only ran mid 14's, like when I was running 15psi. So something is wrong...

Oh for the tires I'm running Kumho's Esta MX's on 17's... they're super soft summer tires for the street. At the track I'm running MT... but those don't spin.