Single Turbo RX-7's Questions about all aspects of single turbo setups.

My stockport 401 HP pull *vid*

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Old 06-12-06, 05:44 PM
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I believe I locked time at 0 and matched the -5 timing mark up. Could be wrong, it was years ago..
Old 06-12-06, 05:48 PM
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***DING DING DING DING***

if you did it that way, your timing is 5* delayed from where you think it is.

lock your timing at -5, THEN line up the mark. (the k can lock at -5, it just can't run that way in the ignition map)

make sure you retune the car after this though.. and get an egt!!
Old 06-12-06, 07:56 PM
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It might have been done this way, but I can always recheck. I did it in accordance to the Hitman process.
Old 06-12-06, 08:57 PM
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just double check it to make sure.
Old 06-12-06, 10:41 PM
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Originally Posted by GUITARJUNKIE28
don't worry about him. that's the guy that claimed 300+whp on a stock turbo blowing smoke, and 30mpg. you learn to ignore claims like that.
Sorry, i just have to laugh out loud at this......30mpg in a rotary powered car.....lol

Guitarjunkie28, what timing would you recomend for J-rat to be running?
Old 06-13-06, 11:26 AM
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i have no recommendations unless i was there tuning it myself, other than make sure the timing is properly zero'd, and get an egt, or knock sensor.

hell, grab a mechanic's stethescope at harbor freight for $5 and run extra long vacuum line so you can listen to the engine during dyno pulls.

it's taking him roughly 4-5psi more to get the same hp as most other guys. something's not right with the setup. could be as simple as timing too far retarded--coool. won't blow anything up, but the turbine and exhaust system won't like it. it just pays to double check and be sure.
Old 06-13-06, 11:27 AM
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Originally Posted by Dan Unk
Sorry, i just have to laugh out loud at this......30mpg in a rotary powered car.....lol
hey, my first gen renny pj car is probably gonna get 30+ mpg. but that's with a new engine that's a lot more efficient than the older ones...not to mention the car is about 600 lbs lighter than a t2.
Old 06-13-06, 12:04 PM
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Originally Posted by GUITARJUNKIE28
i have no recommendations unless i was there tuning it myself, other than make sure the timing is properly zero'd, and get an egt, or knock sensor.
I run an MSD Knock Alert

it's taking him roughly 4-5psi more to get the same hp as most other guys.
Does appear so, doesnt it?
Old 06-13-06, 01:09 PM
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yea. the thing i'd be worried about with this is if there's a problem somewhere, how long will the motor last?

what's the rest of the setup like? intercooler, exhaust, etc...
Old 06-13-06, 02:15 PM
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That whole area area of the map is set up as an "overboost" area afrom back when Rat was running the bolt-on BNR and said he'd NEVER run 20+ psi. We haven't spent any appreciable time up there because of the 94-98% IDC's make things rather risky.

13* of timing
12* of split
AFR's in the high 10's
stock port

Of course power is going to be down. It isn't even close to optimized.
Old 06-13-06, 04:48 PM
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Originally Posted by GUITARJUNKIE28
hey, my first gen renny pj car is probably gonna get 30+ mpg. but that's with a new engine that's a lot more efficient than the older ones...not to mention the car is about 600 lbs lighter than a t2.
i think its gearing, but with a stock ecu, the rx8 has a hard time getting 23mpg. whilst the vastly superior 1991 mazda rx7 coupe automatic easily gets 23+ going 5mph faster on the same bit of road.
Old 06-13-06, 09:06 PM
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nice
Old 06-13-06, 11:08 PM
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damn 10's with alchohol? I thought you could run a bit leaner with alchohol and 10's are just way to rich.
Old 06-14-06, 01:10 AM
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Either way, 400whp is cool--and the fact that there's more to be had is even cooler.
Old 06-14-06, 06:24 AM
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whaaaaaaaaaaaat hell yeah 400 is cool! we're just wanting to see him hit the 450-475hp mark
Old 06-14-06, 06:50 AM
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Originally Posted by hondahater
damn 10's with alchohol? I thought you could run a bit leaner with alchohol and 10's are just way to rich.
you can run a bit leaner depending on how much you are mixing. The AFR's for methanol/alcohol are different than say 91 octane. I run 18psi and my AFR's are all 10's and 11s. It runs stupid, stupid rich... but I know I'm not going to lean out and chunck a seal. lol
Old 06-14-06, 09:36 AM
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true that! I was having slight bucking and **** though on my bnr stage IV when I got to the 10's. So with low 11's it cleared it right up. I'm not sure with bigger turbos though you may need it and may work just fine running 10's. I guess i will see when the t61 goes on my car
Old 06-14-06, 10:21 AM
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Originally Posted by GUITARJUNKIE28
don't worry about him. that's the guy that claimed 300+whp on a stock turbo blowing smoke, and 30mpg. you learn to ignore claims like that.
Yeah, I know. but I just wanted to call him out on it, cuz his claims can be SOOO over the top...
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