Project Nismo Turbo build

Gray Goose · 11-12-2019, 10:26 AM

Quote:

Originally Posted by soill370z

Eek, hope you can get it back going in a timely manner! What happened at the track that resulted in that? Smoke noise etc?

It just started smoking on that last run, then pooring smoke out of the PCV system. No other issues.

Spooler · 11-12-2019, 12:24 PM

Quote:

Originally Posted by Gray Goose

It just started smoking on that last run, then pooring smoke out of the PCV system. No other issues.

I heard it pop and then dump some smoke at the last shift point. I don't know if you were using flat foot shifting, hit the rev limiter, or what happened. That appears to be when the damage was done. I suspect broken ring or ring land.

Rusty · 11-12-2019, 01:00 PM

Broken ring or land. If the cylinder didn't score. You got lucky.

Gray Goose · 11-12-2019, 01:31 PM

Quote:

Originally Posted by Rusty

Broken ring or land. If the cylinder didn't score. You got lucky.

Well if it did..... What are my options? bore, sleeve, or new block? or can you not bore these engines?

I haven't started looking into it yet. But will be starting this week.

Gray Goose · 11-12-2019, 01:30 PM

Quote:

Originally Posted by Spooler

I heard it pop and then dump some smoke at the last shift point. I don't know if you were using flat foot shifting, hit the rev limiter, or what happened. That appears to be when the damage was done. I suspect broken ring or ring land.

I was using flat foot shifting and missed a gear. But it was smoking before that as well. Maybe that finished it off.

Not sure.....

I am starting to get skeptical of flat foot shifting and bouncing the rev limiter in general. I am thinking that is where my issue came up this weekend. I had not problems until running it hard this weekend. It seemed like i was on the rev limiter a lot trying to flat foot shift it and doing my burnouts pedal to the floor.

Elmo370z · 11-12-2019, 02:56 PM

Quote:

Originally Posted by Gray Goose

I was using flat foot shifting and missed a gear. But it was smoking before that as well. Maybe that finished it off.

Not sure.....

I am starting to get skeptical of flat foot shifting and bouncing the rev limiter in general. I am thinking that is where my issue came up this weekend. I had not problems until running it hard this weekend. It seemed like i was on the rev limiter a lot trying to flat foot shift it and doing my burnouts pedal to the floor.

A huge no no On boosted cars if you’re not on a stand-alone

Gray Goose · 11-12-2019, 03:00 PM

Quote:

Originally Posted by Elmo370z

A huge no no On boosted cars if you’re not on a stand-alone

According to my tuner (Moncef @ Admin Tuning) flat foot shifting was enabled thru ECUTEK and I was fine for pedal to the floor burnouts.

I have my doubts on all of that....

Elmo370z · 11-12-2019, 03:26 PM

Quote:

Originally Posted by Gray Goose

According to my tuner (Moncef @ Admin Tuning) flat foot shifting was enabled thru ECUTEK and I was fine for pedal to the floor burnouts.

I have my doubts on all of that....

I’ll give you a list of tuners. Specialty Z (Seb the best state side), Dynosty (Hal), SoHo (nik), folks at R/T tuning, and black box tuning. Not trying to sound like a prick, but these would be the only one tuning my car. Spooler has no issues with his 800 whp Z, Seb has no issues with his 900whp, Cjm’s car didn’t have issues with his 9 second 800whp Z, and currently has a 1069whp Z tuning done by Seb. Your flat foot shifting greatly
Increased crank case pressure and really put a strain on your HG’s

Spooler · 11-12-2019, 03:15 PM

Quote:

Originally Posted by Gray Goose

I was using flat foot shifting and missed a gear. But it was smoking before that as well. Maybe that finished it off.

Not sure.....

I am starting to get skeptical of flat foot shifting and bouncing the rev limiter in general. I am thinking that is where my issue came up this weekend. I had not problems until running it hard this weekend. It seemed like i was on the rev limiter a lot trying to flat foot shift it and doing my burnouts pedal to the floor.

Yeap, Motec guy told me DO NOT use flat foot shifting because it creates cylinder pressure spikes the way ECUTECK implemented it.

11-12-2019, 01:00 PM	#3 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,571 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Broken ring or land. If the cylinder didn't score. You got lucky. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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