Anyone ever tried an IC as crossover? - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 09-03-2006, 03:15 PM   #1
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default Anyone ever tried an IC as crossover?

Just a thought. It would be much easier to grab a little air and flow it over the IC and an IC would shed heat much better than a crossover even without extra air flow.

Cheers, Jon
jljacobi is offline   Reply With Quote
Old 09-03-2006, 04:47 PM   #2
Senior Member
iTrader: (2)
 
Join Date: Aug 2005
Location: Granbury, TX
Posts: 567
Total Cats: 1
Default

greenday3437 is offline   Reply With Quote
Old 09-03-2006, 05:19 PM   #3
Senior Member
iTrader: (1)
 
Join Date: Mar 2006
Location: Tucson "it's 110" Arizona
Posts: 1,017
Total Cats: 0
Default

suggesting mounting the i/c behind the radiator, in engine bay. hmm

I suppose technically you're correct, although the purpose of mounting it in the front of the car is to "exchange" the heat out of the system. Now your suggestion would work on the first pull as the i/c pulled some heat out, but the heat would have nowhere to go and the i/c would heatsoak.

On the 10 pull, or after sitting in traffic, the "heat exchanger" would be more like a air heater, lol. Basicaly the opposite of what you want.

Getting sufficient airflow through the i/c is the only way it might work, assuming the i/c itself wouldn't just heat up to underhood temps and stay there.

Go frontmount.
UofACATS is offline   Reply With Quote
Old 09-03-2006, 05:28 PM   #4
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

I know it wouldn't be anywhere near as efficient as mounting it in front, but I'm only running about 5 psi anyway. I was thinking of this mostly as a intermediate step to replace my blown crossover while I fiddle with the tubing to get it out in front.

I'm thinking an 18 x 6 x 2.5 core would fit there okay...


Jon
jljacobi is offline   Reply With Quote
Old 09-03-2006, 05:32 PM   #5
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

you can get an ebay special 12x18x3 for cheap that will fit with a/c.
Braineack is offline   Reply With Quote
Old 09-03-2006, 05:52 PM   #6
Senior Member
iTrader: (1)
 
Join Date: Mar 2006
Location: Tucson "it's 110" Arizona
Posts: 1,017
Total Cats: 0
Default

Quote:
Originally Posted by jljacobi View Post
I know it wouldn't be anywhere near as efficient as mounting it in front, but I'm only running about 5 psi anyway. I was thinking of this mostly as a intermediate step to replace my blown crossover while I fiddle with the tubing to get it out in front.
Well, don't get me wrong I think it's cool to try.

Do you guys think the intercooler would heat up to underhood temps? It might not.

Depending on the airflow in the engine compartment (?), which I have no idea about, it might be able to repeatedly cool the charged air.
UofACATS is offline   Reply With Quote
Old 09-03-2006, 06:40 PM   #7
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

I'm thinking of trying it just so I can tell everyone if it works to any degree or not...

12 x 18 x 3? I was thinking of something that would serve as a large portion of the crossover like the the 25 * 6.5 * 3 (outer dimensions) and get it down below and behind the radiator for some air flow. I'd also thought of rigging some flexible PVC pipe from the nose to blow air across the IC.

No way I think this is optimal, but it would be pretty darn easy to do.

Jon

Last edited by jljacobi; 09-03-2006 at 07:33 PM.
jljacobi is offline   Reply With Quote
Old 09-03-2006, 07:08 PM   #8
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,809
Total Cats: 1,780
Default

ohhh. it sounds like a very bad idea. no airflow and major heatsoak. It could possibly results in intake temps equal or greater than a just a crossover tube. Might just wanna do a air/water intercooler if your going to put it in that spot.
Braineack is offline   Reply With Quote
Old 09-03-2006, 07:35 PM   #9
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

Actually, there is a fair amount of airflow where it drops down behind the radiator. Exactly how hot does it get in the engine compartment anyway.

I was also thinking of wiring the fans as always-on.

Jon
jljacobi is offline   Reply With Quote
Old 09-03-2006, 10:19 PM   #10
Senior Member
iTrader: (1)
 
Join Date: Mar 2006
Location: Tucson "it's 110" Arizona
Posts: 1,017
Total Cats: 0
Default

Quote:
Originally Posted by jljacobi View Post
I'm thinking of trying it just so I can tell everyone if it works to any degree or not...

12 x 18 x 3? I was thinking of something that would serve as a large portion of the crossover like the the 25 * 6.5 * 3 (outer dimensions) and get it down below and behind the radiator for some air flow. I'd also thought of rigging some flexible PVC pipe from the nose to blow air across the IC.

No way I think this is optimal, but it would be pretty darn easy to do.

Jon
Just make sure the intercooler you buy will work for your frontmount setup if you decide you dislike this arrangement.

I think the investment would be little, and probably worth it "just to see." But, trying to improve upon the less than optimal setup sounds like as much work as just routing the front-mount in the first place.
UofACATS is offline   Reply With Quote
Old 09-03-2006, 11:19 PM   #11
Elite Member
iTrader: (6)
 
Loki047's Avatar
 
Join Date: Sep 2005
Location: Chicago
Posts: 4,145
Total Cats: 0
Default

Quote:
Originally Posted by jljacobi View Post
Actually, there is a fair amount of airflow where it drops down behind the radiator. Exactly how hot does it get in the engine compartment anyway.

I was also thinking of wiring the fans as always-on.

Jon
While heat flow is important its the temp of the heat flow that matters too. I would rather have less flow at lower temp than greater flow at a higher temp (after the radiator)
Loki047 is offline   Reply With Quote
Old 09-04-2006, 12:17 AM   #12
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

Is there an IC that wouldn't work in a front-mount? I'll most likely put it in front anyway...

Cheers, Jon
jljacobi is offline   Reply With Quote
Old 09-04-2006, 01:10 AM   #13
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

I guess there are fitment issues. Did anyone ever decide what the largest is that will fit with AC?

Jon
jljacobi is offline   Reply With Quote
Old 09-04-2006, 01:32 AM   #14
Senior Member
iTrader: (1)
 
Join Date: Mar 2006
Location: Tucson "it's 110" Arizona
Posts: 1,017
Total Cats: 0
Default

Quote:
Originally Posted by jljacobi View Post
Is there an IC that wouldn't work in a front-mount?
yes.
UofACATS is offline   Reply With Quote
Old 09-04-2006, 01:29 PM   #15
Junior Member
Thread Starter
 
Join Date: Jan 2005
Posts: 49
Total Cats: 0
Default

Yeah, that was sorta' dumb. I could probably find one bigger than a Miata if I looked hard enough.

Would 25" total width work with AC? Anyone?

Jon
jljacobi is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
WTB: BEGi S or SSM crossover tube for 1.6L rharris19 WTB 2 03-12-2009 12:36 PM
WTB 94 egr crossover tube drftem2 WTB 1 10-15-2008 07:11 AM
Monsterflow filter, IAT sensor relocation to OEM crossover tube woodchuk General Miata Chat 2 07-09-2007 03:06 PM
ETD Racing crossover or IC at stock 4.5-5psi? jljacobi Prefabbed Turbo Kits 3 09-02-2006 05:18 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:58 AM.