Mitsubishi Lancer Evolution Forum banner
1 - 18 of 18 Posts

·
Registered
Joined
·
146 Posts
Discussion Starter · #1 ·
I'm getting a bunch of things installed this coming Wednesday, but I have a questions in regards to the downpipe.

I bought a new UR short downpipe and a Depo 200-cell HFC, both of which have the wideband bungs welded. I currently have a 2.75" Borla catback installed with the OEM DP and cat. I know I will definitely be replacing the cat, but I'm starting to wonder if using a bigger downpipe on the stock turbo is really worth it. I'm still unsure if I will go the X-turbo swap or the RAD turbo in the future. If I go with the X swap then the entire downpipe setup would need to be changed out anyway, and I'm thinking that going with the RAD would be best with a full long downpipe to get the most out of it.

I'd like some opinions on this, if it's not really worth it to install a new DP only for minimal gain, than I won't bother. I do plan on flashing the V2.7 TBE basemap and it said that a DP was ok but not necessary, just a HFC/test pipe with a catback would do.
 

·
Premium Member
Joined
·
4,765 Posts
while your in there why not knock it out you know cause going from the top taking the downpipe out is easier than going from the bottom.

most swap the downpipe not so much for power but for spool effect
 

·
Registered
Joined
·
2,063 Posts
downpipe on stock turbo is basically the worst $/whp mod out there based on my research and talking with different tuners...if you are staying on stock turbo, might as well leave the stock dp so that when you have to go to the dealer for service/warranty work one less thing to take off...I personally have a shorty dp and although it might help with spool some, I am not sure it is truly worth having the trouble of taking it on and off if warranty work is needed...my dealer was cool with it though so haven't run into that issue...if you got it already just throw it on but don't expect much...GL!
 

·
Registered
Joined
·
2,991 Posts
:duh:
I'm getting a bunch of things installed this coming Wednesday, but I have a questions in regards to the downpipe.

I bought a new UR short downpipe and a Depo 200-cell HFC, both of which have the wideband bungs welded. I currently have a 2.75" Borla catback installed with the OEM DP and cat. I know I will definitely be replacing the cat, but I'm starting to wonder if using a bigger downpipe on the stock turbo is really worth it. I'm still unsure if I will go the X-turbo swap or the RAD turbo in the future. If I go with the X swap then the entire downpipe setup would need to be changed out anyway, and I'm thinking that going with the RAD would be best with a full long downpipe to get the most out of it.

I'd like some opinions on this, if it's not really worth it to install a new DP only for minimal gain, than I won't bother. I do plan on flashing the V2.7 TBE basemap and it said that a DP was ok but not necessary, just a HFC/test pipe with a catback would do.
?? are you driving a Ralliart or what?? what do you mean by X-turbo swap?


Just seen you drive a ralliart, all makes sense now
you will only see minimal gains with a DP, don't expect massive figures, when you start changing the pipe work it gets expensive in comparison to the gains you get.
 

·
Registered
Joined
·
146 Posts
Discussion Starter · #8 ·
downpipe on stock turbo is basically the worst $/whp mod out there based on my research and talking with different tuners...if you are staying on stock turbo, might as well leave the stock dp so that when you have to go to the dealer for service/warranty work one less thing to take off...I personally have a shorty dp and although it might help with spool some, I am not sure it is truly worth having the trouble of taking it on and off if warranty work is needed...my dealer was cool with it though so haven't run into that issue...if you got it already just throw it on but don't expect much...GL!
That's what I'm thinking... If I upgrade to the RAD turbo from CBRD, I'd benefit from the full long downpipe. If I decide to go with a X-swap, then I'd have to get a full X downpipe anyway.

:duh:?? are you driving a Ralliart or what?? what do you mean by X-turbo swap?


Just seen you drive a ralliart, all makes sense now
you will only see minimal gains with a DP, don't expect massive figures, when you start changing the pipe work it gets expensive in comparison to the gains you get.
Sorry, I simply copied and pasted from another site I posted this on, I did not specify which car I had.
 

·
Registered
Joined
·
71 Posts
well I have an X turbo im selling... if oyu wanna just go that route now :) ( asking 375 shipped )
seriously though..... I did a full downpipe on my evo x, and I noticed a big gain..( according to the butt dyno) it was realistically MAYBE 10 whp... but hey.. it is the spool and how much faster things get there for me... I thought it was worth the money.. now open dump, vs non open dump is also something to consider...
 

·
Registered
Joined
·
3,595 Posts
That's what I'm thinking... If I upgrade to the RAD turbo from CBRD, I'd benefit from the full long downpipe. If I decide to go with a X-swap, then I'd have to get a full X downpipe anyway.
I don't understand this mentality with RA owners. They still like the RAD because it's a cheaper and easier turbo upgrade, but they want to spend the money on other mods that make hardly any power - nullifying the whole budget aspect of the RAD.

it's just not worth it. I consider the DP part of the turbo - if your turbo flows a shit ton, get a better downpipe to prevent choking the flow. but even the stock Evo X turbo doesn't flow that much, let alone any puny TD04
 

·
[E-Tuner]
Joined
·
15,922 Posts
I don't understand this mentality with RA owners. They still like the RAD because it's a cheaper and easier turbo upgrade, but they want to spend the money on other mods that make hardly any power - nullifying the whole budget aspect of the RAD.

it's just not worth it. I consider the DP part of the turbo - if your turbo flows a shit ton, get a better downpipe to prevent choking the flow. but even the stock Evo X turbo doesn't flow that much, let alone any puny TD04
Lol.
 

·
Registered
Joined
·
146 Posts
Discussion Starter · #12 ·
I don't understand this mentality with RA owners. They still like the RAD because it's a cheaper and easier turbo upgrade, but they want to spend the money on other mods that make hardly any power - nullifying the whole budget aspect of the RAD.

it's just not worth it. I consider the DP part of the turbo - if your turbo flows a shit ton, get a better downpipe to prevent choking the flow. but even the stock Evo X turbo doesn't flow that much, let alone any puny TD04
I'm just throwing the option out there, doesn't mean I will go with the RAD setup. I was also making a point that either route would be more beneficial with a full downpipe, whether it's RA or X specific. I sure as hell am not buying a long downpipe for the stock unmodified TD04, so I just want to make sure my money is well spent. In this case, I'm starting to realize that it wasn't, just go with a HFC and catback, leave the downpipe alone.
 

·
Registered
Joined
·
122 Posts
RAD TURBO flow rate is 36lbs a min. I believe the Stock EvoX turbo is 34lbs a min. I was sold on the RAD turbo after looking at the dyno comparisons from CBRD between the X swap and RAD upgrade. Im purchasing the RAD this week. Ill be installing my new X front mount and UR LICP on SAT. I cant wait to see the gains!
 

·
[E-Tuner]
Joined
·
15,922 Posts
RAD TURBO flow rate is 36lbs a min. I believe the Stock EvoX turbo is 34lbs a min. I was sold on the RAD turbo after looking at the dyno comparisons from CBRD between the X swap and RAD upgrade. Im purchasing the RAD this week. Ill be installing my new X front mount and UR LICP on SAT. I cant wait to see the gains!
The stock Evo 10 turbo flows 42 lbs/min

http://www.evoxforums.com/forums/showthread.php?t=31912
 

·
Registered
Joined
·
122 Posts
Chet,

I am in no way trying to start an argument or anything, but is there proof for the stock X flow rate? I tried searching for some proof and couldn't find anything factual. I did see on evom that two threads were stating that the X flow rate was at 36lbs a min. I'm more curious for my own knowledge. If anyone can find some hard evidence of what the actual flow rate of a stock X turbo that would be great. I'll still continue to search myself.

- Ray
 

·
Premium Member
Joined
·
4,765 Posts
:eek:fftopic:RAD vs EVO X turbo is EVOM TALK NOT EVOXFORUMS TALK.

back on topic!
 

·
Registered
Joined
·
122 Posts
:eek:fftopic:RAD vs EVO X turbo is EVOM TALK NOT EVOXFORUMS TALK.

back on topic!
Turbo flow rates is on topic. I never said one turbo is better than the other.
 
1 - 18 of 18 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top