20B NA update - dyno results (LONG)

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Jun 3, 2004 | 01:29 PM

#51

projekt

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From: NW Arkansas

the n/a 3 rotor at pdmracing.com made 300whp with 91 NA rotors and exhaust work. this is their statement, not mine.

Jun 6, 2004 | 09:49 PM

#52

Hamza734

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From: midwest

Quote:

Originally posted by Lasse wankel
Update on dyno day Sunday. I didn't finished to get every small parts in place so i hope i can dyno on Monday if the dynooperator can and will. i'll keep you posted!

Any updated?

Jun 7, 2004 | 07:09 AM

#53

Lasse wankel

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From: Sundbyberg,Sweden

Here it goes! Did dyno yesterday! The N/A PP w/ 10:0 cr and a Weber 51 IDA make 284 hp@8600 rpm. Torque 180 ft/lb@7500 rpm. That was 8 more hp on top but 11-20 hp more in the 5-7000 rpm span. Very drivable from 3500 to 9000 rpm according to my dyno operator. The engine will sit in RX-7-83 rally car which gonna compete in a tarmac cup in July. I will do a new thread in the Rotary Performance section with more details tonight.

Jul 12, 2004 | 08:18 AM

#54

RETed

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From: n

Finally got around to getting the dyno graph...

We had other runs close to 200 lb-ft, but this one was the cleanest up to redline (7kRPM).

-Ted

Jul 12, 2004 | 03:03 PM

#55

Jeff20B

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Is that close to the stock twins?

Jul 12, 2004 | 04:32 PM

#56

mad20b

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Thats great! You have just managed to encourage me to take my turbo off & build a set of headers! That should help get the car going sooner rather than later!

Jul 12, 2004 | 05:00 PM

#57

Wargasm

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From: A pale blue dot

Nice graph... I added you to my page at http://www.catenet.net/dyno.php

Thanks for the dyno!

Brian

Jul 12, 2004 | 05:03 PM

#58

Wargasm

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From: A pale blue dot

An interesting comparison... a few close-to-stock FDs vs the RETed's dyno...

http://www.catenet.net/graph.php?car...1&SUBMIT=GRAPH

You can see that the shape of the powerband is very much the same, but without the troubles associated with the FD TT system. This is a compliment for the FD TT system (when working properly) since it makes the 2 rotor drive more like a 3 rotor NA (flexible).

I'd still rather have the 3 rotor NA though

Jul 13, 2004 | 09:08 AM

#59

j9fd3s

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From: https://www2.mazda.com/en/100th/

Quote:

Originally posted by Jeff20B
Is that close to the stock twins?

stock twins did 270ish lbsft

Jul 14, 2004 | 03:02 AM

#60

RETed

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From: n

Quote:

Originally posted by Wargasm
An interesting comparison... a few close-to-stock FDs vs the RETed's dyno...

http://www.catenet.net/graph.php?car...1&SUBMIT=GRAPH

Hey Wargasm thanx for the submit!
I didn't how to do this, so I was relieved to see you had taken care of it already!

It's not my car, so I was wondering if you can change some of the owner info?
I just put up the dedicated page for this car on my website...

Owner: slidingsky on RX-7 Forum
WWW: http://fc3spro.com/PROJECTS/SKY/20B/sky20b.html

Thanx again!!!

-Ted