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Old 06-23-2016, 10:03 PM   #61
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Settle down everybody, we still got 5 days. I'll build to suit, you want a mandrel bent pipe I'll make it happen. If I am going to prove you right I have to do it your way.
Flex pipe is the easiest fitment past the trans. My car currently has flex pipe in the same location.

Last edited by Pretending2koolz; 06-23-2016 at 10:06 PM. Reason: etc
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Old 06-23-2016, 10:08 PM   #62
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... but if the outlet is 2.5" there isn't a reason to go 3" the hang up is still where it is 2.5".
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Settle down everybody, we still got 5 days. I'll build to suit, you want a mandrel bent pipe I'll make it happen. If I am going to prove you right I have to do it your way.
Mandrel bends are nice, I use them. You can get them fairly cheap on mandrelbends.com. If you're gonna go to the trouble to build a new exhaust, at least do it somewhat-right. You can build a mandrel bend aluminized 3" system fairly cheap.
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Old 06-23-2016, 11:01 PM   #63
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Mandrel bends are nice, I use them. You can get them fairly cheap on mandrelbends.com. If you're gonna go to the trouble to build a new exhaust, at least do it somewhat-right. You can build a mandrel bend aluminized 3" system fairly cheap.
There is 1 local mandrel bender if his turn around inst fast enough I'll get it from mandrelbends.com even pay the 40 to next day it so I have it by Tuesday.
Dyno Tuesday or I'll gtfo on my own accord in a dunce cap, make it easy on the MODs.(I've also been fasting, not because its Ramadan, but because if I have to eat my own words I wanna do so on an empty stomach)
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Old 06-23-2016, 11:15 PM   #64
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lol

The only reason we took particular issue with you is because you deliberately challenged the collective knowledge here.

It's one thing to be new, or wrong, or plain dumb. It's another to call out the community.

That is all. We don't care enough about you to hate you, or have any negative feelings towards this thread.

This is amusing

PS: I'm glad you're not salty about it. There's hope for you yet
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Old 06-23-2016, 11:18 PM   #65
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lol

The only reason we took particular issue with you is because you deliberately challenged the collective knowledge here.

It's one thing to be new, or wrong, or plain dumb. It's another to call out the community.

That is all. We don't care enough about you to hate you, or have any negative feelings towards this thread.

This is amusing

PS: I'm glad you're not salty about it. There's hope for you yet
Like I said earlier, I've never been so excited to be proven wrong.
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Old 06-24-2016, 04:28 PM   #66
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Thanks for the link patsmx5, the shop in town sold their mandrel 2 years a go to a different local company, and that company is closed Fridays. So ordered it up should be here tomorrow.
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Old 06-26-2016, 09:06 PM   #67
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Alright. Here is a 2.5" vs 3" exhaust.

Only difference between these 2 runs was a 3" exhaust, 60psi base pressure (instead of 43.5), and about 10 track days and 10k street miles.

Same dyno. I'm still missing some spool from EBC tuning.

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2.0...ish, But for REAL this time.-80-175223_community_build_thread_aidan_rambles_80_bmdgo78_fb02ded80fa473d2f3f93615ab95fd81936055.png  
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Old 06-26-2016, 09:17 PM   #68
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Alright. Here is a 2.5" vs 3" exhaust.

Only difference between these 2 runs was a 3" exhaust, 60psi base pressure (instead of 43.5), and about 10 track days and 10k street miles.

Same dyno. I'm still missing some spool from EBC tuning.

Is that 30ish tq?
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Old 06-26-2016, 09:19 PM   #69
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10-20ish. MAP doesnt line up exactly. But where it does the 3" wins every time.
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Old 06-27-2016, 12:22 AM   #70
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Old 06-28-2016, 09:15 AM   #71
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10-20whp is literally nothing.....

But there are small gains to be had overall. Granted those same gains can be had by running a whole 1psi more or removing your spare tire lol...


todays the dyno day right?
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Old 06-28-2016, 09:54 AM   #72
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10-20whp is literally nothing.....
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Old 06-28-2016, 09:56 AM   #73
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20ft/lbs over 500rpm is definitely something. thats over a 10% increase.
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Old 06-28-2016, 09:58 AM   #74
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bro he owns a 2jz
1000whp is minimum for basic bolt on grocery getter

lulz
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Old 06-28-2016, 11:34 AM   #75
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I think many people dismiss the flow gains of 2.5" to 3” because they see it as a 20% increase in size, when it's actually a 45% increase in size.

Bitches love 45% more girth.
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Old 06-28-2016, 10:13 PM   #76
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2.5" exhaust

3" exhaust
Attached Thumbnails
2.0...ish, But for REAL this time.-80-2_5_ex_e4829ed92dc2be62db2e004030c8572b5f22b680.jpg   2.0...ish, But for REAL this time.-80-3_not_better_than_two_77a9e5ae1146c27e2a6c12d8c5e8ac52c870ba9b.png  
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Old 06-28-2016, 10:35 PM   #77
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Same day same dyno?

Can we get some non-potato plots?
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Old 06-28-2016, 10:38 PM   #78
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Same day same dyno?

Can we get some non-potato plots?
not same day

First one is from 55 days and 800 miles ago
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Old 06-28-2016, 10:39 PM   #79
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Interesting. Do you have any run files?
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Old 06-28-2016, 10:47 PM   #80
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Interesting. Do you have any run files?
This is from the run.
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File Type: msl 2016-06-28_19.26.20.msl (1.39 MB, 22 views)
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