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post #41 of 55 (permalink) Old 04-05-2019, 10:44 AM
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Did you get an ovt tune?

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post #42 of 55 (permalink) Old 04-05-2019, 01:51 PM
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Originally Posted by Nostalgic Hero View Post



Quick update. I just completed OVT on 91 octane. This thing is a torque monster . Plugged in some numbers on the vdyno. Don’t know how accurate they are. My butt dyno tells me it’s not far off.

236whp and 268 lb-ft tq with header + tune. Which is ~280hp to the crank?

E85 tune next.
Is it possible that the dyno is a bit off, it’s just crazy that the car could get way more powerful by just headers?

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post #43 of 55 (permalink) Old 04-05-2019, 02:33 PM
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I'm not surprised at all.
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post #44 of 55 (permalink) Old 04-09-2019, 02:31 AM Thread Starter
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Did you get an ovt tune?

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Yes the tune is to still ongoing. I'm currently on my 4th tune file.
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post #45 of 55 (permalink) Old 04-09-2019, 02:40 AM Thread Starter
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Originally Posted by Modzas6x View Post
Is it possible that the dyno is a bit off, itís just crazy that the car could get way more powerful by just headers?

Way possible the numbers are off. only way to find out is real world dyno. Maybe I'll take it in during dyno day??
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post #46 of 55 (permalink) Old 04-09-2019, 12:50 PM
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Any thought re employing some kind of heat shield? Yes, headers are pretty to look at. But will they have a negative effect on nearby components (particularly the plastic ones)... or the paint on the hood?

I note that they would appear to be ceramic coated, and I do expect that that coating mitigates against some of the heat radiation effect.

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post #47 of 55 (permalink) Old 04-09-2019, 07:58 PM
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Too much estimated gain and so far down too. 180hp at 2000 RPM is highly unlikely. I'd expect to see the power band much higher up.


Not saying it is impossible, but 100HP with a tune and header seems about 3 times too much in a best case scenario. Looking forward to an actual dyno sheet.


Also, stock engine max power well over 5K RPM, 5700 I believe. Not sure how you move it down so far with a tune and header.

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post #48 of 55 (permalink) Old 04-14-2019, 11:14 AM Thread Starter
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Quote:
Originally Posted by Cdn17Sport6MT View Post
Any thought re employing some kind of heat shield? Yes, headers are pretty to look at. But will they have a negative effect on nearby components (particularly the plastic ones)... or the paint on the hood?

I note that they would appear to be ceramic coated, and I do expect that that coating mitigates against some of the heat radiation effect.


I would love it if I could use the stock heatshield but no place to mount it. Thought about using metal zip ties to hold the shield in place to keep things stock looking. My car is already loud as it is on wot so if for any reason I had to pop my hood the only thing obtrusive right now is the branded header. Will thermal wrap it eventually. I live in Cali so trying to stay low key as possible.
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post #49 of 55 (permalink) Old 04-14-2019, 11:25 AM
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Quote:
Originally Posted by Cdn17Sport6MT View Post
Any thought re employing some kind of heat shield? Yes, headers are pretty to look at. But will they have a negative effect on nearby components (particularly the plastic ones)... or the paint on the hood?

I note that they would appear to be ceramic coated, and I do expect that that coating mitigates against some of the heat radiation effect.
Dont sweat it, been running aftermarket headers for many years on many vehicles, never any heat related issues
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post #50 of 55 (permalink) Old 04-14-2019, 11:26 AM
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Originally Posted by b1lk1 View Post
Too much estimated gain and so far down too. 180hp at 2000 RPM is highly unlikely. I'd expect to see the power band much higher up.


Not saying it is impossible, but 100HP with a tune and header seems about 3 times too much in a best case scenario. Looking forward to an actual dyno sheet.


Also, stock engine max power well over 5K RPM, 5700 I believe. Not sure how you move it down so far with a tune and header.
Exactly! Lets get back to reality, your not going t0 get a 100hp gain with headers, especially on a car that already has a decent factory header.
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