UEL + Turbo

[SilverTipp]

Originally Posted by Jesse@JDLAutodesign

If you're looking for maximum efficiency in a turbo manifold i think equalizing the pressure drop between the runners is much more important than length.

Originally Posted by Sportsguy83

You wont see 50 whp loss. STI's in the 400+ whp see 15-30 WHP increae when going from STOCK UEL to aftermarket EL, so comparing aftermarket UEL to aftermarket EL should not be anything over 30 whp at the worst possible scenario. Just using an example, again no hard concrete data.

Edit: Interesting R&D piece form Tomei. See below, Chapter three is about exhaust manifold design EL vs. UEL and why they chose UEL

http://www.tomei-p.co.jp/news/Report-EJ25-V1.html#C3.1

Very interesting read. Thanks!

In my mind, it would seem like proper turbo placement, planning, tuning, etc. could result in great performance as well.
@JDLAutoDesign Will you guys be posting dynos of UEL compared to EL when you're ready? It would be nice to start gaining some definitive answers instead of speculation about what "seems" logical.

If I went EL ... I would have to try super hard to make my exhaust sound half as decent after this. I mean just listen to this comparison video. (One of the closest to actual sound profiles I have found.) [ame]http://youtu.be/PGykinGlPno[/ame]

[Sportsguy83]

Originally Posted by jamesm

that's na though. we're talking about turbocharged, where the effects of pulse timing are far more important as they effect spool, which of course itself greatly effects the powerband. i think we agree though that it's very application specific and whether it's a material concern is unknown. my point is just that it's never better to have uneven exhaust pulse timing in a turbo car. maybe there is some case where it is, i could be wrong, but it doesn't make any sense why that would be.

Just so you know, you are getting me to change my mind, get EL and be done with it.

Not because I didn't know this already, but because you are making me think about it. I had blocked it all off.

[jamesm]

Originally Posted by Sportsguy83

Just so you know, you are getting me to change my mind, get EL and be done with it.

Not because I didn't know this already, but because you are making me think about it. I had blocked it all off.

[jamesm]

for a lot of people the sound is far more important than any difference in performance. luckily im not a fan of the subaru rumble, so i'm able to go el and not worry about it lol

[Sportsguy83]

Originally Posted by jamesm

for a lot of people the sound is far more important than any difference in performance. luckily im not a fan of the subaru rumble, so i'm able to go el and not worry about it lol

I'm a fan of the UEL sound, but thought hard about it last night and just think what's the point of investing all this money on performance to leave some of it on the table for "sound"... Yeah, I'm going EL thanks James

[SmsAlSuwaidi]

Originally Posted by Sportsguy83

I'm a fan of the UEL sound, but thought hard about it last night and just think what's the point of investing all this money on performance to leave some of it on the table for "sound"... Yeah, I'm going EL thanks James

o really ?

[Sportsguy83]

Originally Posted by SmsAlSuwaidi

o really ?

Yeah, I keep trying to justify the UEL sound over performance and cant.

[SmsAlSuwaidi]

Originally Posted by Sportsguy83

Yeah, I keep trying to justify the UEL sound over performance and cant.

your making me change my mind too

[Sportsguy83]

Originally Posted by SmsAlSuwaidi

your making me change my mind too

Hahaha, think about it. You loose a close race, won't doubts come into mind thinking f*ck man, I should have gotten the EL...

I've read and read and read and the most I can find regarding performance is that EL gives more power up top. I did ran UEL for some months and it sounds glorious, but our cars with the proper exhaust setup do sound good EL so why not.

[jamesm]

Originally Posted by Sportsguy83

I'm a fan of the UEL sound, but thought hard about it last night and just think what's the point of investing all this money on performance to leave some of it on the table for "sound"... Yeah, I'm going EL thanks James

i like that thought process

[jamesm]

el doesn't sound too bad... this was with a crap tune, it sounds much better now

[ame]http://youtu.be/YKWCGDapwTc[/ame]

[ftc~brz]

Originally Posted by Sportsguy83

Yeah, I keep trying to justify the UEL sound over performance and cant.

atta boy! my uel turbo dreams were crushed a long time…cough $$$ cough ago

[SmsAlSuwaidi]

Originally Posted by Sportsguy83

Hahaha, think about it. You loose a close race, won't doubts come into mind thinking f*ck man, I should have gotten the EL...

I've read and read and read and the most I can find regarding performance is that EL gives more power up top. I did ran UEL for some months and it sounds glorious, but our cars with the proper exhaust setup do sound good EL so why not.

That's is kind of true, and with a GTR WHO vanity plate that I'm going to order I can't afford any performance loss



Sent from my iPhone using Tapatalk

[SilverTipp]

Originally Posted by ftc~brz

atta boy! my uel turbo dreams were crushed a long time…cough $$$ cough ago

Originally Posted by Sportsguy83

Hahaha, think about it. You loose a close race, won't doubts come into mind thinking f*ck man, I should have gotten the EL...

I've read and read and read and the most I can find regarding performance is that EL gives more power up top. I did ran UEL for some months and it sounds glorious, but our cars with the proper exhaust setup do sound good EL so why not.

But where's the proof saying this has to be the case? Most turbo kits are designed around EL because it's easier to design around and it's what everyone does ... but who has the proof that a turbo kit actually designed around a UEL manifold can't be it's equal?

I guess I mean, where's the proof that crushed your dreams? I can't find definitive proof anywhere?