Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

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glamcem 06-07-2014 03:28 PM

Quote:

Originally Posted by gmsii (Post 1783753)
what i mean is slip the clutch if you need to....its better than spinning out
there is nothing more sensitive to rear wheel lock up than a motorcycle during aggressive downshifting and braking....before slipper clutches became standard in racing motorcycles, in addition to matching engine speed, the rider needed to have good enough clutch control to slip the clutch to drag the engine rpm up to higher transmission speeds when necessary

it may be a bit hard to explain what I am actually dealing with :) most of the time I have to be on the maintenance throttle very quickly and there is a slim line between keeping the car steady or causing a lift off oversteer at those speeds ..

Like you mentioned those transitions may be somewhat easier with sportbikes, I used to own two of them (Gixxer 600 and Ninja 1000, and totaled both of them within 8 months, long story lol) and slipper clutches were great help ..but as you can imagine fast in - fast out requires some serious "man berries" on motorcycle :lol: and maybe some serious experience with trail braking technique which I never experienced on a motorcycle ;)

I will try getting a lighter flywheel as you suggested and am hoping that it will help me at track days..:)

post_break 06-07-2014 06:58 PM

I just wanted to say, if you haven't clamped your evap hoses do it now. I just did on my car and now my AFR's are where they need to be. They were running way lean and now so much better. The evap hoses slipped off with a pinky finger. I don't know how they correlate to my tune but now I'm running exactly where I should be when open and closed loop. No more air blowing sound when under boost too.

This should be step one before the SC goes on because it's a pain to do after the fact.

NCItaly 06-07-2014 07:56 PM

So, after a failed hour of searches, I ask you guys this: where is a good place to tap in a boost gauge? I'm using Torque App right now and it kind of sucks because i get vacuum until like 5000rpm on WOT. I bought a cheap gauge (don't care too much about accuracy, more so just the presence of boost near correct levels) but i don't know where to run the tube to. any suggestions?

post_break 06-07-2014 08:29 PM

Quote:

Originally Posted by NCItaly (Post 1784431)
So, after a failed hour of searches, I ask you guys this: where is a good place to tap in a boost gauge? I'm using Torque App right now and it kind of sucks because i get vacuum until like 5000rpm on WOT. I bought a cheap gauge (don't care too much about accuracy, more so just the presence of boost near correct levels) but i don't know where to run the tube to. any suggestions?

I teed off the brake booster.

Taino-BRZ 06-07-2014 08:34 PM

I'm getting a code p0507 idle air control system rpm higher than expected, my rpms at idle are 1300-1000 sometimes higher, I clamp.the 3 hoses under the intake manifold any a idea what else could be? Maybe I missed a hose? Or maybe is something else?

Sent from my SGH-M919 using Tapatalk

NCItaly 06-07-2014 08:36 PM

Quote:

Originally Posted by Taino-BRZ (Post 1784476)
I'm getting a code p0507 idle air control system rpm higher than expected, my rpms at idle are 1300-1000 sometimes higher, I clamp.the 3 hoses under the intake manifold any a idea what else could be? Maybe I missed a hose? Or maybe is something else?

Sent from my SGH-M919 using Tapatalk

yup, usually caused by a vacuum leak. gotta find it. thats the same code i got when i blew off my EVAP hose

NCItaly 06-07-2014 08:37 PM

Quote:

Originally Posted by post_break (Post 1784467)
I teed off the brake booster.

what kind of readings are you getting?

post_break 06-07-2014 08:38 PM

Quote:

Originally Posted by NCItaly (Post 1784482)
what kind of readings are you getting?

Around 10 psi I think. I don't really watch it much. More interested in AFR.

Sent from my SGH-M919 using Tapatalk

NCItaly 06-07-2014 08:41 PM

Quote:

Originally Posted by post_break (Post 1784484)
Around 10 psi I think. I don't really watch it much. More interested in AFR.

Sent from my SGH-M919 using Tapatalk

what about vacuum?

post_break 06-07-2014 08:43 PM

Quote:

Originally Posted by NCItaly (Post 1784487)
what about vacuum?

That's like negative 10-15.

Sent from my SGH-M919 using Tapatalk

zoth 06-07-2014 09:10 PM

Quote:

Originally Posted by post_break (Post 1784489)
That's like negative 10-15.

Sent from my SGH-M919 using Tapatalk

Mine never goes less than -10

NCItaly 06-07-2014 09:23 PM

Quote:

Originally Posted by zoth (Post 1784526)
Mine never goes less than -10

at what RPM do you start seeing 0 and boost?

captain_jack 06-07-2014 09:27 PM

When mine was installed i was seeing boost at 2k, well according to @nelsmar when we were on the dyno.

sent from your mom

zoth 06-07-2014 09:51 PM

Quote:

Originally Posted by NCItaly (Post 1784544)
at what RPM do you start seeing 0 and boost?

Between 2K & 2.5k, but it really depends on how you drive I think. Like on 6th gear until you floor it and let reach boost. But oh boy it's so easy to reach over 100 mph... :burnrubber: I need better tires.


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