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

Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB (https://www.ft86club.com/forums/index.php)
-   Software Tuning (https://www.ft86club.com/forums/forumdisplay.php?f=88)
-   -   Pops in Neutral (https://www.ft86club.com/forums/showthread.php?t=144577)

ArthurBRZ 03-17-2021 11:06 PM
Pops in Neutral
 
Does anyone know how to get pops when the car is in neutral with RomRaider?

Thanks

Breadman 03-18-2021 08:44 AM
i dont think anything like that has ever been done before

AT-JeffT 03-18-2021 09:40 PM
The ID-10T module does not allow for it on these cars.

soundman98 03-18-2021 10:07 PM
jcwhitney should still be able to sell you a flamethrower kit.

Ultramaroon 03-19-2021 12:53 AM
I don't think it's possible.

Sapphireho 03-19-2021 12:57 AM
Quote:
Originally Posted by Ultramaroon (Post 3414938)
I don't think it's possible.
Neither was 12 parsecs....

soundman98 03-19-2021 01:02 AM
Quote:
Originally Posted by Sapphireho (Post 3414939)
Neither was 12 parsecs....
Yeah, but that was in a galaxy far far away.

Sapphireho 03-19-2021 01:05 AM
1 Attachment(s)
Quote:
Originally Posted by soundman98 (Post 3414940)
Yeah, but that was in a galaxy far far away.
.

soundman98 03-19-2021 01:46 AM
I believe the old trick of dumping a load of marbles in the muffler might work

Ultramaroon 03-19-2021 02:38 AM
Quote:
Originally Posted by Sapphireho (Post 3414939)
Neither was 12 parsecs....
Aero

steve99 03-19-2021 03:49 AM
Quote:
Originally Posted by ArthurBRZ (Post 3414673)
Does anyone know how to get pops when the car is in neutral with RomRaider?

Thanks

Base B timing mods and a bit of throttle technique


https://youtu.be/2M3Xwb1tp-Y

JD001 03-19-2021 06:34 AM
Quote:
Originally Posted by soundman98 (Post 3414951)
I believe the old trick of dumping a load of marbles in the muffler might work
I presume "pea shooter" comes from this practice... Great idea for a new James Bond gadget, shooting marbles from the back of the Aston..

JD001 03-19-2021 06:36 AM
Quote:
Originally Posted by steve99 (Post 3414973)
Base B timing mods and a bit of throttle technique


https://youtu.be/2M3Xwb1tp-Y
I am hoping that the audio on my phone is shite.

Varelco 03-19-2021 07:41 AM
Mine does it on the stock map under the right conditions. On high idle sometimes if I blip the throttle it pops and burbles nicely, doesn't when its warm or during the 'pulse jet/sonic boom part of a cold start. Anyone know what the ECU does in a high idle as to why it might do this?

Tcoat 03-19-2021 12:40 PM
Quote:
Originally Posted by Varelco (Post 3414993)
Mine does it on the stock map under the right conditions. On high idle sometimes if I blip the throttle it pops and burbles nicely, doesn't when its warm or during the 'pulse jet/sonic boom part of a cold start. Anyone know what the ECU does in a high idle as to why it might do this?
Pours more fuel in.

tomm.brz 03-19-2021 03:31 PM
Quote:
Originally Posted by Tcoat (Post 3415055)
Pours more fuel in.
No.

Actually cold start is leanish in this car, warm start too a little
And it's actually in open loop state when you first start it cold

If you measure AFR with a wideband with a stock tune, you ll see subaru afr stuck around 14.7/15.16 (it has various level undefined to me)
Meanwhile the wideband measures even slightly leaner

The pops are from stratified and retarded DI injection and negative ignition timing, combined with the timing retard induced by the throttle blipping, both pushing it and releasing it

There are also other OEM tables that limit the amount of retard while coolant is cold and while clutch is pressed (ever noticed sound changes when you press clutch to go in reverse during cold start?) and while it's complicated to see how and when those tables act, the burbles you get are mostly from retarded ignition timings

Ernest72 03-19-2021 04:06 PM
Just no!

Tcoat 03-19-2021 05:13 PM
Quote:
Originally Posted by Varelco (Post 3414993)
if I blip the throttle it pops and burbles nicely,
Quote:
Originally Posted by Tcoat (Post 3415055)
Pours more fuel in.
Quote:
Originally Posted by tomm.brz (Post 3415111)
No.

Actually cold start is leanish in this car,
Sorry I wasn't clear on what part of his comment I was addressing.
Yes all you said is accurate and when you add sudden fuel to those conditions you get more pops than normal.

steve99 03-19-2021 06:40 PM
Quote:
Originally Posted by Varelco (Post 3414993)
Mine does it on the stock map under the right conditions. On high idle sometimes if I blip the throttle it pops and burbles nicely, doesn't when its warm or during the 'pulse jet/sonic boom part of a cold start. Anyone know what the ECU does in a high idle as to why it might do this?

During high idle cold start ecu also retards timing stock its -15

soundman98 03-19-2021 08:48 PM
Quote:
Originally Posted by JD001 (Post 3414991)
I am hoping that the audio on my phone is shite.
it could be, but it's not the problem here.

Ultramaroon 03-19-2021 09:18 PM
Quote:
Originally Posted by soundman98 (Post 3415171)
it could be, but it's not the problem here.
lol :clap::clap::clap:

Ultramaroon 03-19-2021 09:21 PM
Quote:
Originally Posted by steve99 (Post 3415145)
During high idle cold start ecu also retards timing stock its -15
This thread is retarded -15


All times are GMT -4. The time now is 03:39 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2026 DragonByte Technologies Ltd.


Garage vBulletin Plugins by Drive Thru Online, Inc.