200whp with stock N/A rotating assy?

[e21jps]

Hey John. nice to see some updates here.. i keep forgetting to come and check out the progress,

I can definately backup your findings with bigger valves and totally agree that just banging in os valves does absolutely nothing or even hurts flow unless the rest of the port and seat area is reworked to suit

I have tested my bare itbs with trumpet and it flows 265cfm which is WAY above the potential of any m20 head so i think what your seeing wen the flows start coming back together at higher lift is the port itself backing up like they do after they hit that turbulent point. At which time what ever intake will have a lesser affect.

interesting to note that after you did fit the larger valves then fitted my itbs with no other changes to the port the mid range flow actually increased a little!! It would be nice to see the comparison on a graph.

After your strategic porting then even with the intake on flow still smashes all the rest at all lift's and you have a nice fast port... thats what works best ;D
(i have tested "Fully ported" heads that look very pretty but actually flow sweet FA more than a std port!)

[squidmaster]

that picture made me all giddy!

[poplars]

mind. blown.

[ForcedFirebird]

Any progress on this?

There will be this week. We had a few cars to prep for Sebring this past weekend, haven't worked on it since Wed.

[LJ851]

Any progress on this?

[frankenbeemer]

I am completely lost here, and loving it.

[LJ851]

^^Sexy time.

[MPLFoster]

nice

[ForcedFirebird]

[E-Thirty]

When is the dyno going to happen? Really glad to see the m20 getting some attention. Great thread!

[AWDBOB]

For Alpha-N Motronic?

Yessir, if you and Jesse get it running good on Alpha-N Motronic, I would like to go that route. I've gone standalone in the past, and would rather just keep the stock ECU due to simplicity this time around.

A few local E30 guys are also interested in the Alpha-N Motronic chip for the ITBs.

Waiting on that chip solution to purchase the RHD kit, and cleaning up a few other areas on the mean time!

[ForcedFirebird]

Cool, good to hear! You have a customer here when she's ready.

For Alpha-N Motronic?

[AWDBOB]

It's coming. It really wasn't happy with the modifications as it sat, but it's driving around as of now.

Cool, good to hear! You have a customer here when she's ready.

[ForcedFirebird]

How is the tune coming along on the motronic?

It's coming. It really wasn't happy with the modifications as it sat, but it's driving around as of now.

[ForcedFirebird]

So would you argue keeping stock sized valves and slapping on ITB is possibly the easiest way to get gains without screwing things up?

Can you describe the touch up you did for test #7?

Unless you want to flow test heads, yes, leave them alone. Been saying that for years. Even if test #7 was explained, it's not the same as real world testing. Besides, let's see if the dyno backs up all these years/tests. These gains/tests are a joke to most, and would laugh at a goal of 200hp. My machinist always laughs at me since he has a 2000+hp drag car, but it is what it is. Just a small shop trying to get hp from a 25+yr old platform for not a lot of money.