NA 6port streetport dynoed at 195whp (update)
#29
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Wild, the RB header was a part of that equation. I would think you could extract much more power from that engine with a traditional long primary collected system like the race bridge engines use. I'm debating whether or not to try something like that for my FC, I still have my craptastic stock cat and cat back behind an RB header and it's time to change it. And I almost have a standalone finally!
You rock. No one else tunes the six port NA engines they way they should be. Usually only the race bridgeport builders go all out.
You rock. No one else tunes the six port NA engines they way they should be. Usually only the race bridgeport builders go all out.
#30
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yep the exhaust was nothign special, pretty run of the mill, if just the AFR would be fixed i am certain teh car will hit over 200whp. with a better exhaust and induction system the power should be at around 220whp
ifs all about using what u have and tuning it to its potential.
Originally Posted by 88IntegraLS
You rock. No one else tunes the six port NA engines they way they should be. Usually only the race bridgeport builders go all out.
#31
im hoping to break the 200 mark by the end of august after i get a microtech and some sort of new intake set-up. Those are good numbers now just throw in a 4.88 or a 5.12 and you will be set.
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I've been thinking more about your tuning strategy kahren, run it rich and advance timing a bit. With full timing control you can optimize it over the entire map/rpm grid.
Way back a couple years ago when 170rwhp seemed like the upper limit for na six port engines, people were reporting high 13 to low 14 air fuel ratios (PP13bnos for example, 14.1:1 with 167 rwhp on a pineapple ported S5 with true duals). Seems you've broken through that plateau even with the very strangely tuned runner lengths of the RB collected header.
Way back a couple years ago when 170rwhp seemed like the upper limit for na six port engines, people were reporting high 13 to low 14 air fuel ratios (PP13bnos for example, 14.1:1 with 167 rwhp on a pineapple ported S5 with true duals). Seems you've broken through that plateau even with the very strangely tuned runner lengths of the RB collected header.
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yes there are multiple stages, 2 and 3, anything after is pretty much a discussion of what one is looking for out of the car and then deciding on what would eb best.
the second and 3rd stages are less streetable and take away some low end and idle is not as smooth.
the second and 3rd stages are less streetable and take away some low end and idle is not as smooth.
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i didnt have my camera, at the dyno so id idnt take any pics . there are no videos as far as i am concerned. that car has been involved in a very heavy accident so i doubt we will see any more form it any time soon, but there are other stage1 ported cars that are similar to this that will be dynoing soon, so once i have somethign intersting to post i will!
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Originally Posted by Funkspectrum
sorry to resurrect this thread....what's the status now? are there any pictures of the ports?
I have a friend that may need some porting work done, that's why i'm asking...
I have a friend that may need some porting work done, that's why i'm asking...
here is the link to it
https://www.rx7club.com/time-slips-dyno-128/na-streetport-6-port-dynoed-182whp-details-inside-416012/
Originally Posted by rx7 SE
So Kahren, what did you do differently when you ported that engine to make it put out those numbers. And i remember u saying this is a stage 1 port. Is there a stage2 or even 3 that you have planned yet?
did diffrently? diffrent then what? this is a stage 1 port. yes there are stage 2 and 3. i have a few stages of intake and exhaust porting, you can selevet diffrent stages of itnake and exhaust portign to best match your needs.
Last edited by Kahren; 01-19-06 at 01:34 AM.