Rotary Car Performance General Rotary Car and Engine modification discussions.

So this guy is saying hes making power at 9900 rpm.

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Old Jul 14, 2005 | 12:32 AM
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GT45R13b's Avatar
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From: my own world...
So this guy is saying hes making power at 9900 rpm.

On a street port with a T60.

This is the bigest amount of bullshit i've ever heard.

heres the thread

https://www.rx7club.com/power-fc-forum-47/any-ideas-why-falls-its-face-8000rpms-442902/

heres what he said
Originally Posted by quick_spoolin
ha-ha no I didn’t initialize the PFC but that is a good idea and I am not running stock maps and the motor is fully built as in balanced e shaft, clearanced rotors, new Adkins bearings, it has a HUGE street port, T60-1 turbo and so on and so forth its got a lot it handles it I have ran this setup for a longtime now, but I’m still learning and so I’m just looking for some ideas from people.... I know how to build the motors i'm just not totally pro at tuning them but I will be, so any ideas??? It was fully tuned when the motor came out and now after I put the exacts same motor back in, (nothing changed)..., it falls on its face at 8000rpms..... I know even with stock ports I pulled to 8500rpms...

Originally Posted by quick_spoolin
o and i made ALOT of power up there it actually pulled until the top of the FC's redline at 9990, but i bumped it down to 9500, and when i say it falls on its face i mean me going from the ushual 400+ hp to like 100 hp in a matter of a finger snap...

What do you guys thing, making power at 9500 on a large street port with a t60?

for that i think that you'd need a Gt42r a 1/2 or full bridge port dowl pinned motor ect......

to this clown i say
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Old Jul 14, 2005 | 06:33 PM
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GT45R13b's Avatar
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Wow no oppions?
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Old Jul 14, 2005 | 06:38 PM
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no one cares It sounds like you have a personal issue with this person. Why should anyone contribute to your cause of trying to make them look bad. It holds NO technical merit. As this is the tech section. Try posting in the lounge, you'll probably get alot of assclowns to post

Last edited by BigIslandSevens; Jul 14, 2005 at 06:41 PM.
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Old Jul 14, 2005 | 06:41 PM
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all he's saying is it "pulled" up to 9990. "pulled" is a pretty loose term. so it "making power".

as far as cross posting on rx7club and calling someone bs, well I have an opinion on that
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Old Jul 14, 2005 | 07:13 PM
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I dont see how or why this isnt doable. Im not sure what that turbos efficiency range is, so as tie pilot mentioned, he might not really be making power up there, but getting there isnt something unheard of. I personaly intend to set my redline to 9k on a street port and T88 turbo (so I can keep the turbo in its efficiency range). Im about to buy a lightweight flywheel before I put my new tranny in just so I can knock the redline up and not get worried about the stock flywheel shattering. Id be fine with setting the redline at 10k, but the tach stops at 9 and I dont feel like buying an aftermarket tach.
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Old Jul 15, 2005 | 12:40 AM
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if you ask some of the more experienced tuners they will tell you rotaries are iffy after 8k, i believe its because the apex seals begin to pull in from the housing walls due to the hourglass shape of the housing
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Old Jul 15, 2005 | 02:03 AM
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The engine is making power that high.
What's the big deal?

You never said how MUCH power.

If it was NOT making power, the engine would be dead or not running.



-Ted
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Old Jul 15, 2005 | 05:54 AM
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tie pilot's Avatar
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Originally Posted by RETed
The engine is making power that high.
What's the big deal?

You never said how MUCH power.

If it was NOT making power, the engine would be dead or not running.



-Ted
exactly!
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Old Jul 15, 2005 | 10:20 AM
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Originally Posted by Snotcycle
if you ask some of the more experienced tuners they will tell you rotaries are iffy after 8k, i believe its because the apex seals begin to pull in from the housing walls due to the hourglass shape of the housing
You have to be shitting me! I guess I should stop leaving the line on the rev limiter at 10,500rpm's. That has got to be the most ignorant comment about a rotary I have heard in a long while. Tell the Mazda engineers about this fact seeing that the stock Renesis, RX8 motor, revs past 8 from the factory redline at 9,000rpm's. Thank you. You just made my day that is probably the funniest comment I will hear all day.
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Old Jul 15, 2005 | 12:48 PM
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Yeah sure you could spin to 9900... it's probably past the *peak* horsepower, but it's not like there's a magic line where suddenly the engine stops making any power.
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Old Jul 15, 2005 | 03:29 PM
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9900 RPM and CHANGE

Its really very simple guys! He's useing an aftermarket tach set on V-8. So he's really only turning 4950 RPM. Or something like that (I think)(maby)(ahhh s#@t, first liar doesn't have a chance)
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