| Vancouver Auto Chat 2016 VAC Community Head Moderator: Raid3n |
 | | 
10-22-2015, 03:20 AM
|
#1 | | RS Lurker, I don't post!
Join Date: Jun 2014 Location: Van604
Posts: 2
Thanked 1 Time in 1 Post
| installed a bigger intercooler, but completely lost low end torque?
as the title stated, one of my buddy installed a bigger intercooler then the OEM one, but i have no idea how BIGGER it is. but after installed, all the low end torque had been completely lost.
anyone got any idea or any reason why?
the car is 2012 MB W204 C250 1.8L turbo.
| 
|  | |
10-22-2015, 06:07 AM
|
#2 | | Captain Happy Bubble is my Homeboy
Join Date: Dec 2001
Posts: 333
Thanked 100 Times in 36 Posts
|
I guess it can happen as more air is now required to compress into that area, which was smaller before, but that should just be part of the turbo lag I would think. Unless he have an air leak.
| |
| | |
10-22-2015, 06:20 AM
|
#3 | | Rs has made me the woman i am today!
Join Date: Jun 2002 Location: Vancouver
Posts: 4,461
Thanked 1,276 Times in 308 Posts
|
-Butt dyno needs to be recalibrated?
-Stock IC already efficiently sized for stock turbo
-New aftermarket IC shittier (flow wise) vs stock IC
-Boost leak
-Boost lag due to larger IC, ?additional piping
Check data logs with stock IC vs aftermarket IC. Otherwise you're just guessing.
| |
| | |
10-22-2015, 07:52 AM
|
#4 | | To me, there is the Internet and there is RS
Join Date: Apr 2007 Location: Okanagan
Posts: 16,251
Thanked 8,901 Times in 3,865 Posts
|
If you install a bigger IC you increase the volume of air between the turbo and the intake manifold. Realistically you want the smallest one that gives you acceptable intake temps to keep the lag to a minimum.
I'm guessing your friend hasn't changed anything else on the car?
__________________ 1991 Toyota Celica GTFour RC // 2007 Toyota Rav4 V6 // 2000 Jeep Grand Cherokee
1992 Toyota Celica GT-S ["sold"] \\ 2007 Jeep Grand Cherokee CRD [sold] \\ 2000 Jeep Cherokee [sold] \\ 1997 Honda Prelude [sold] \\ 1992 Jeep YJ [sold/crashed] \\ 1987 Mazda RX-7 [sold] \\ 1987 Toyota Celica GT-S [crushed] Quote:
Originally Posted by maksimizer  half those dudes are hotter than ,my GF. | Quote:
Originally Posted by RevYouUp reading this thread is like waiting for goku to charge up a spirit bomb in dragon ball z | Quote:
Originally Posted by Good_KarMa OH thank god. I thought u had sex with my wife. :cry: | | |
| | |
10-22-2015, 08:27 AM
|
#5 | | OMGWTFBBQ is a common word I say everyday
Join Date: Jul 2012 Location: BC
Posts: 5,239
Thanked 4,905 Times in 1,655 Posts
|
Sounds like a boost leak...
__________________
2021 F150 Platinum FX4
2021 Mustang GT PP1 6MT | |
| | |
10-22-2015, 08:34 AM
|
#6 | | Ricer Mod
Join Date: Mar 2005 Location: Smithers
Posts: 7,008
Thanked 5,276 Times in 1,501 Posts
|
Why did he "upgrade" the intercooler?
Berz out.
__________________
President of RS Beat Down Crew
Last edited by Berzerker; 10-22-2015 at 09:33 AM.
| |
| | |
10-22-2015, 09:12 AM
|
#7 | | I *heart* Revscene.net very Muchie
Join Date: Apr 2006 Location: 3rdrckfrmthesn
Posts: 3,701
Thanked 3,899 Times in 1,380 Posts
|
You are losing pressure because of the intercooler. You now need more air pressure flowing through to make up for the difference. An intercooler upgrade should happen after basic bolt-ons have been added. Even then it may not be needed.
| |
| | |
10-22-2015, 09:25 AM
|
#8 | | OMGWTFBBQ is a common word I say everyday
Join Date: Jan 2004 Location: Van/Bur
Posts: 5,019
Thanked 1,557 Times in 511 Posts
| Quote:
Originally Posted by white rocket An intercooler upgrade should happen after basic bolt-ons have been added. Even then it may not be needed. | But a big ass intercooler looks siiiiiiiccccckkkkk!!! 
__________________
Cash Rules Everything Around Me!
Current:
2006 Honda Fourtrax Rancher 400cc ATV (Offroad trails + Winter Snow Plow)
1995 Toyota Tacoma (Toy Hauler)
2003 Honda Civic SIR (Daily Beater)
2018 KTM 390 Duke (Gas Saver)
2017 Subaru WRX Sport-Tech + STI 6MT (Weekend Track)
Past:
2014 Honda Grom
1971 MG MGB Tourer
Kayo MR125 Race Bike
2001 Honda Odyssey
2009 Toyota Corolla CE
2007 Honda Ruckus
2007 Husqvarna SM610 SuperMoto
2001 Honda S2000
| |
| | |
10-22-2015, 09:37 AM
|
#9 | | Pull Out Towing. Women rescued for free.
Join Date: Mar 2002 Location: Hongcouver
Posts: 8,449
Thanked 2,414 Times in 1,283 Posts
| Quote:
Originally Posted by Dragon-88 But a big ass intercooler looks siiiiiiiccccckkkkk!!! | True story.
__________________ Originally posted by Iceman_19 you should have tried to touch his penis. that really throws them off. Originally posted by The7even SumAznGuy > Billboa Originally posted by 1990TSI SumAznGuy> Internet > tinytrix Quote:
Originally Posted by tofu1413 and icing on the cake, lady driving a newer chrysler 200 infront of me... jumped out of her car, dropped her pants, did an immediate squat and did probably the longest public relief ever...... steam and all. | (11-0-0) Buy/Sell rating Christine Shitvic Pull Out Towing | |
| | |
10-22-2015, 09:45 AM
|
#10 | | Need my Daily Fix of RS
Join Date: Nov 2014 Location: Burnaby
Posts: 276
Thanked 247 Times in 90 Posts
|
Your loosing boost through the larger intercooler. Turn up the boost to compensate.  | |
| | |
10-22-2015, 09:46 AM
|
#11 | | they call me the snowman
Join Date: Apr 2001 Location: online
Posts: 19,749
Thanked 3,993 Times in 1,374 Posts
| Quote:
Originally Posted by underscore If you install a bigger IC you increase the volume of air between the turbo and the intake manifold. Realistically you want the smallest one that gives you acceptable intake temps to keep the lag to a minimum. | Yup.
I bigger IC will take more air to fill before beginning to build the pressure that is boost.
OP, think about the extra volume of air that is needed to fill the new IC, including any piping, etc. If the same turbo is working to fill that space, it will have to work harder to build the same amount of power. Let alone, to build more power.
Also, IC doesn't make power. It is a support part that allows you to run a larger volume of air. Quote:
Originally Posted by dared3vil0 Sounds like a boost leak... | Chances are the car would run like shit if there was a boost leak. Especially with the closed system and multiple German sensors looking for that sort of thing.
| |
| | |
10-22-2015, 10:12 AM
|
#12 | | I contribute to threads in the offtopic forum
Join Date: Mar 2004 Location: Vancouver
Posts: 2,799
Thanked 1,831 Times in 587 Posts
|
He put an IC to large for his setup and is now seeing a pressure drop greater than the stock system over his OE intercooler.
In other words, he spent more money on a part he did not need to make his car slower and less efficient OR excuse to up the boost and put a new turbo in there to make the IC efficient for said performance.
| |
| | |
10-22-2015, 10:28 AM
|
#13 | | Everyone wants a piece of R S...
Join Date: Feb 2005 Location: East Van
Posts: 368
Thanked 85 Times in 41 Posts
|
Torque from 1.8L ? J/k
Like mentioned above, this is not Nitro Nation where adding parts equals gainz.
Also check for loose clamps etc... For leaks in air intake system
| |
| | |
10-22-2015, 10:32 AM
|
#14 | | I contribute to threads in the offtopic forum
Join Date: Aug 2006 Location: Abbotsford
Posts: 2,825
Thanked 1,538 Times in 495 Posts
|
Sounds like the muffler bearings weren't torqued to spec...
| |
| | |
10-22-2015, 10:41 AM
|
#15 | | RS.net, helping ugly ppl have sex since 2001
Join Date: Feb 2011 Location: Richmond
Posts: 8,418
Thanked 14,751 Times in 3,867 Posts
| Quote:
Originally Posted by se3p-tt as the title stated, one of my buddy installed a bigger intercooler then the OEM one, but i have no idea how BIGGER it is. but after installed, all the low end torque had been completely lost.
anyone got any idea or any reason why?
the car is 2012 MB W204 C250 1.8L turbo. |
Like everyone else on here has said, adding an inter cooler to a stock system is not always advisable, especially in our climate. If you're running stock intake, exhaust, ECU, boost pressure etc there's no reason for a larger FMIC. Bits very common for larger intercoolers and piping to effectively drop you're boost pressure in a sense.
With my focus st (2.0L turbo) I am running stock intercooler and piping for it still. I've done a few bolt ons like cat less downpipe, intake, Cobb tunes etc. I'm running a stage 2 91 octane tune and about 22.5psi boost pressure (15psi stock). They recommend I have a larger intercooler for the setup, but while watching post-intercooler air temps there isn't a need for it as of right now. Driving around its just like 75 degrees. A full boost under load pull sees it jump to maybe 95 degrees. But even in the summer it didn't go over 100 really. If this was a Californian climate then it would be a whole different ball game.
| |
| | |
10-22-2015, 10:48 AM
|
#16 | | RS Lurker, I don't post!
Join Date: Jun 2014 Location: Van604
Posts: 2
Thanked 1 Time in 1 Post
|
thanks for all the response. i will tell him to look for the leakage first.
| |
| | |
10-22-2015, 11:05 AM
|
#17 | | Pull Out Towing. Women rescued for free.
Join Date: Mar 2002 Location: Hongcouver
Posts: 8,449
Thanked 2,414 Times in 1,283 Posts
| Quote:
Originally Posted by se3p-tt thanks for all the response. i will tell him to look for the leakage first. | No, there is no leak. If there was, the car would drive like shit.
Problem is that he needs to move a lot more air before building boost due to the larger IC.
His loss of tourque is boost lag.
__________________ Originally posted by Iceman_19 you should have tried to touch his penis. that really throws them off. Originally posted by The7even SumAznGuy > Billboa Originally posted by 1990TSI SumAznGuy> Internet > tinytrix Quote:
Originally Posted by tofu1413 and icing on the cake, lady driving a newer chrysler 200 infront of me... jumped out of her car, dropped her pants, did an immediate squat and did probably the longest public relief ever...... steam and all. | (11-0-0) Buy/Sell rating Christine Shitvic Pull Out Towing | |
| | |
10-22-2015, 12:06 PM
|
#18 | | I contribute to threads in the offtopic forum
Join Date: Mar 2004 Location: Vancouver
Posts: 2,799
Thanked 1,831 Times in 587 Posts
|
Yeah, he has no leak. If he did there would be next to no power and a lot of noise from under the hood.
Switch back to stock IC.
| |
| | |
10-22-2015, 04:00 PM
|
#19 | | Head of HR....have a seat on that couch
Join Date: Jan 2003 Location: Coquitlam
Posts: 21,869
Thanked 15,582 Times in 4,317 Posts
|
Blow through a stir-stick, then blow through a bbt straw.
Which one has more pressure on the other end?
__________________ feedback
Originally posted by v.b.
can we stop, my pussy hurts...
Originally posted by asian_XL
fliptuner, I am gonna grab ur dick and pee in your face, then rub shit all over my face...:lol
Originally posted by Fei-Ji
haha i can taste the cum in my mouth
Originally posted by FastAnna
when I was 13 I wanted to be a video hoe so bad RSUV #7 | |
| | |
10-22-2015, 04:08 PM
|
#20 | | Pull Out Towing. Women rescued for free.
Join Date: Mar 2002 Location: Hongcouver
Posts: 8,449
Thanked 2,414 Times in 1,283 Posts
| Quote:
Originally Posted by fliptuner Blow through a stir-stick, then blow through a bbt straw.
Which one has more pressure on the other end? | Personal favourite is to use soapy water and blow bubbles with a regular straw, bbt straw and then through a paper towel tube and see how big the bubbles are.
__________________ Originally posted by Iceman_19 you should have tried to touch his penis. that really throws them off. Originally posted by The7even SumAznGuy > Billboa Originally posted by 1990TSI SumAznGuy> Internet > tinytrix Quote:
Originally Posted by tofu1413 and icing on the cake, lady driving a newer chrysler 200 infront of me... jumped out of her car, dropped her pants, did an immediate squat and did probably the longest public relief ever...... steam and all. | (11-0-0) Buy/Sell rating Christine Shitvic Pull Out Towing | |
| | |
10-22-2015, 04:38 PM
|
#21 | | Head Moderator
Join Date: Dec 1982 Location: Great White Nor
Posts: 22,661
Thanked 6,462 Times in 2,081 Posts
| Quote:
Originally Posted by se3p-tt thanks for all the response. i will tell him to look for the leakage first. | No.
Just no.
If there's a leak, it's simply a coincidence and would still be too small to be detected by the sensors in a closed loop system. The larger intercooler IS THE PROBLEM.
Period.
| |
| | |
10-22-2015, 04:45 PM
|
#22 | | Rs has made me the woman i am today!
Join Date: Jan 2011 Location: Vancouver DT
Posts: 4,314
Thanked 2,796 Times in 915 Posts
|
oh its a boost leak?,okay. 
__________________
Fly Your Own Flag.
| |
| | |
10-24-2015, 09:42 AM
|
#23 | | I contribute to threads in the offtopic forum
Join Date: Jul 2001 Location: ☺
Posts: 2,500
Thanked 150 Times in 59 Posts
|
Should have started with stickers :P
| |
| | |
10-24-2015, 06:08 PM
|
#24 | | RS.net, helping ugly ppl have sex since 2001
Join Date: Feb 2002 Location: Vancouver
Posts: 8,225
Thanked 3,839 Times in 1,483 Posts
|
All your guys analogies suck. Think about how long it takes to blow up your blowup doll (stock intercooler) to a firm level(boost pressure). Then compare that to your blowup pool(large intercooler) in your parents backyard to the same firmness(once again, boost pressure). That lack of breath your feeling in your lungs(turbo)? That's called boost lag. What your friend is experiencing during his lack of torque.
Until you get a lung transplant, or start running marathons your big pool is going to take so freaking long to blow up and have fun, you might as well stick to your blowup doll.
Retarded analogy but I think anyone can make sense of it. Ha
__________________
Crush - 1971 Datsun 240z - Build Thread
The Daily - Rav4 V6 - “Goldilocks”
| |
| | |
10-24-2015, 06:33 PM
|
#25 | | OMGWTFBBQ is a common word I say everyday
Join Date: Jul 2012 Location: BC
Posts: 5,239
Thanked 4,905 Times in 1,655 Posts
| Quote:
Originally Posted by hud 91gt All your guys analogies suck. Think about how long it takes to blow up your blowup doll (stock intercooler) to a firm level(boost pressure). Then compare that to your blowup pool(large intercooler) in your parents backyard to the same firmness(once again, boost pressure). That lack of breath your feeling in your lungs(turbo)? That's called boost lag. What your friend is experiencing during his lack of torque.
Until you get a lung transplant, or start running marathons your big pool is going to take so freaking long to blow up and have fun, you might as well stick to your blowup doll.
Retarded analogy but I think anyone can make sense of it. Ha | So much fucking win.
__________________
2021 F150 Platinum FX4
2021 Mustang GT PP1 6MT | |
| | | |
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off
| | |
All times are GMT -8. The time now is 06:40 AM.
|
You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
The banners on the left side and below do not show for registered users!
