What would be needed to run at 8500 RPM? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Lantana frs · 07-21-2016, 12:48 PM

Quote:

Originally Posted by reeves

I've gone over 7500 rpms several times since getting my E85 tune.. I've hit 8K rpms exactly six times. I don't redline my car much these days (maybe once a month), but I still live in the 3-5K rpm range. 40K+ miles since my first 8K rpm hit, and still running strong. We'll see how much longer the engine lasts..

40k on e85? Are you using flex fuel kit?

FRS Justin · 07-21-2016, 01:25 PM

Quote:

Originally Posted by reeves

I've gone over 7500 rpms several times since getting my E85 tune.. I've hit 8K rpms exactly six times. I don't redline my car much these days (maybe once a month), but I still live in the 3-5K rpm range. 40K+ miles since my first 8K rpm hit, and still running strong. We'll see how much longer the engine lasts..

[ame="https://www.youtube.com/watch?v=o6uvBexBYX8"]Copy of 13.58 FRS Pass - YouTube[/ame]

Listen to the rpms on the line and listen every time I flatfoot shift and it bangs the rpm limiter.. I have 100s of passes and street abuse to on that engine and its still going strong. 35k on that motor..
I bought another engine just so I could keep my original engine on a stand in my garage .lol
These motors are pretty strong and dependable if you do the maintenance...

reeves · 07-21-2016, 01:55 PM

Quote:

Originally Posted by Lantana frs

40k on e85? Are you using flex fuel kit?

No I just switch back & forth between my E85 & 93-octane tune. I only use 93 octane during winter because of the hard starts in cold weather.

reeves · 07-21-2016, 02:09 PM

Quote:

Originally Posted by FRS Justin

Listen to the rpms on the line and listen every time I flatfoot shift and it bangs the rpm limiter.. I have 100s of passes and street abuse to on that engine and its still going strong. 35k on that motor..
I bought another engine just so I could keep my original engine on a stand in my garage .lol
These motors are pretty strong and dependable if you do the maintenance...

13.5 is awesome, congrats! I've tried flat-foot shifting once, but I was so focused on pressing the clutch that I messed up my shift from 2nd to 3rd and got a nasty GRIND from the tranny haha. Haven't tried it since.

What RPM do you launch at? I've tried launching from redline a few times just to hear the cheap stock tires squeal lol.

FRS Justin · 07-21-2016, 02:32 PM

Quote:

Originally Posted by reeves

13.5 is awesome, congrats! I've tried flat-foot shifting once, but I was so focused on pressing the clutch that I messed up my shift from 2nd to 3rd and got a nasty GRIND from the tranny haha. Haven't tried it since.

What RPM do you launch at? I've tried launching from redline a few times just to hear the cheap stock tires squeal lol.

That was like 7500 maybe 7800 but with stock tires you will have to start a lot lower like 5k and play with it, a lot of it is the track prep and tire pressure.. Then its clutch release slow or fast. just have to find the right combo for your needs

mad_sb · 07-21-2016, 05:32 PM

Quote:

Originally Posted by 200hp/tonne

So, mechanically, a limit of 8000 is possible on a stock engine. maybe then play with the tune to see what power can be made. I have full exhaust with UEL headers

Your a little late to the game, no offense. Stock engine will not make power up there, not enough VE to support it, regardless of what you do with the tune. At this point every tuning trick has been tried and tried again.

TLDR, all the tuners have been there, tried that, then added boost cause the stock motor (even with supporting bolt-ons inclusing EL header) runs out of VE by 7500 RPM or so.

Ultramaroon · 07-21-2016, 08:11 PM

Quote:

Originally Posted by FRS Justin

Funny you posted that, when my car was on the dyno and I hit 28 to 30 psi the intake started growing.. To the point I refused to stand by the motor during a pull.. It was scary!!!

Now me and the Mad Scientist gotta rip apart the block and replace the piston rings you fried.

Ashikabi · 07-21-2016, 08:12 PM

Quote:

Originally Posted by Ultramaroon

Now me and the Mad Scientist gotta rip apart the block and replace the piston rings you fried.

All aluminum piping

Lantana frs · 07-21-2016, 08:39 PM

I know that some tuners were raising rev limit to allow 60 mph in 2nd gear and eliminate the need for an additional shift. The power drop off was so bad though that it was quicker to use 3rd gear.

Lantana frs · 07-21-2016, 08:44 PM

Quote:

Originally Posted by FRS Justin

That was like 7500 maybe 7800 but with stock tires you will have to start a lot lower like 5k and play with it, a lot of it is the track prep and tire pressure.. Then its clutch release slow or fast. just have to find the right combo for your needs

Justin, did you ever make a pass when stock? The quickest im aware of is 14.75 with 100 octane.

FRS Justin · 07-21-2016, 10:05 PM

Quote:

Originally Posted by Lantana frs

Justin, did you ever make a pass when stock? The quickest im aware of is 14.75 with 100 octane.

If I remember right it was a 14.9 on 93 octane. Maybe 14.7 but I can't remember. That's a 100% stock no tuning. My fastest 13.47 on E85

Captain Snooze · 07-21-2016, 11:54 PM

I'm a little surprised that @celek's thread hasn't been mentioned yet.
www.ft86club.com/forums/showthread.php?t=63901

07-21-2016, 11:54 PM	#40
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,723 Thanks: 3,993 Thanked 9,346 Times in 4,127 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	I'm a little surprised that @celek's thread hasn't been mentioned yet. www.ft86club.com/forums/showthread.php?t=63901 __________________ My car is completely stock except for all the mods.

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07-21-2016, 08:39 PM	#37
Lantana frs Senior Member Join Date: Jun 2016 Drives: 13 frs red Location: Lantana fl Posts: 448 Thanks: 51 Thanked 198 Times in 115 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I know that some tuners were raising rev limit to allow 60 mph in 2nd gear and eliminate the need for an additional shift. The power drop off was so bad though that it was quicker to use 3rd gear.

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