Another cold start question… - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

BrahmaBull1990 · 06-10-2021, 10:44 PM

Hi All,

I just had an Edelbrock SC installed and love the tune (tuner is well versed with Subaru), but I’m worried the cold start rpm is too high and maybe causing wear during the first 30-45 seconds; about 2.4k RPM

steve99 · 06-11-2021, 02:04 AM

Just get tuner to drop cold idle to 1800 no idea why you would need it to rev that high on cold start generally i use 1200 rpm max idle

BrahmaBull1990 · 06-11-2021, 09:56 AM

Quote:

Originally Posted by steve99

Just get tuner to drop cold idle to 1800 no idea why you would need it to rev that high on cold start generally i use 1200 rpm max idle

Is this safe? The cold start is about 30-40 seconds. More just annoying right now

RToyo86 · 06-11-2021, 10:04 AM

Quote:

Originally Posted by BrahmaBull1990

Is this safe? The cold start is about 30-40 seconds. More just annoying right now

It's fine. The cold start is just to heat up the cats. With your catless header you need at most 1200rpm on start. One hack I did prior to the OFT cold start delete was to put the car into gear and move it back and forth upon start. That would disable the cold start.

BrahmaBull1990 · 06-11-2021, 10:08 AM

Quote:

Originally Posted by RToyo86

It's fine. The cold start is just to heat up the cats. With your catless header you need at most 1200rpm on start. One hack I did prior to the OFT cold start delete was to put the car into gear and move it back and forth upon start. That would disable the cold start.

You're brilliant! Thank you; just trying to make sure I'm not pushing sludge too fast first thing in the morning.

06-10-2021, 10:44 PM	#1
BrahmaBull1990 Howdy Join Date: Feb 2021 Drives: 2020 BRZ PP Location: Snohomish, WA Posts: 589 Thanks: 1,271 Thanked 446 Times in 248 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Another cold start question… Hi All, I just had an Edelbrock SC installed and love the tune (tuner is well versed with Subaru), but I’m worried the cold start rpm is too high and maybe causing wear during the first 30-45 seconds; about 2.4k RPM __________________ There's a point at 7,000 RPM... where everything fades. The machine becomes weightless. Just disappears. And all that's left is a body moving through space and time. 7,000 RPM. That's where you meet it. You feel it coming. It creeps up on you, close in your ear. Asks you a question. The only question that matters. Who are you?

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06-11-2021, 02:04 AM	#2
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Just get tuner to drop cold idle to 1800 no idea why you would need it to rev that high on cold start generally i use 1200 rpm max idle

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