JR Intercooler - 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 05-12-2009, 11:38 PM   #1
Junior Member
Thread Starter
 
Join Date: Mar 2009
Location: st. louis
Posts: 48
Total Cats: 0
Thumbs up JR Intercooler

Does anyone have one of their inline intercoolers. I'm still gathering pieces for my first turbo install set for mid-june (the wifes gone for the week). Just curious.:
jcnsue is offline   Reply With Quote
Old 05-12-2009, 11:41 PM   #2
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,175
Total Cats: 2,575
Default

they suck
18psi is offline   Reply With Quote
Old 05-13-2009, 12:01 AM   #3
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

y8s was running one or something similar at one time, he ditched it in favor of an air-to-air though.
kotomile is offline   Reply With Quote
Old 05-13-2009, 12:10 AM   #4
Junior Member
Thread Starter
 
Join Date: Mar 2009
Location: st. louis
Posts: 48
Total Cats: 0
Default

Quote:
Originally Posted by kotomile View Post
y8s was running one or something similar at one time, he ditched it in favor of an air-to-air though.
any idea why, am I thinking right or wrong but it seems that the air/water type ic would be a bit more efficient depending on water temp in the cooler. The JR ic being the inline type seems like it would be relatively efficient at low boost levels, but I guess the ambient air temp could be lower than the ic water temp, thus helping the air to air ic gain ovr the JR type. Heck I'm just flappin I don't know but I'm looking at both types. My kit is a regular greddy type. I'm not looking for 300 horse. I have to drive mine every day so reliability is a major concern. thanks.
jcnsue is offline   Reply With Quote
Old 05-13-2009, 12:14 AM   #5
Senior Member
iTrader: (11)
 
Join Date: Sep 2007
Location: Killen, AL, 35645
Posts: 732
Total Cats: 2
Default

Quote:
Originally Posted by 18psi View Post
they suck
I don't know why, I just think this is the funniest quote. I guess because it is so short and 200 percent right on spot with Jackson Racing and the **** they churn out...

Where companies like Begi and Flyin Miata strive to make the best products with further expandability, Jackson Racing is happy with their mediocrity.. Their kits are okay, but they seldom do they leave room for those of us who want to push more power. The M45 works just fine for those wanting a moderate boost in power, but spin it past 6 psi and it is very inefficient, unless u wanna fry eggs on the outlet manifold

If your going air-to-water intercooler, your biggest enemy is going to be fighting thermal inefficiency; the coolant just wants to get hotter and hotter. (You don't want the coolant to heat soak, you want the heat to be dissipated quickly) Now the most common thing most people tend to want to replace if they are having heat soak probs with the air-water intercooler is the intercooler itself. I know this because I ran an air-water setup on my M45 at one time.

For a successful air-water intercooler setup, I believe the most important aspects are as followed from most important to least important.

1. Size and efficiency of the heat exchanger. Most important.
2. Quantity of coolant that is in circulation, size of reservoir.
3. Dilution of coolant. (try an 80 water/20 coolant)
4. Power of electric water pump.
5. Size of the actual barrel type intercooler.

I betcha for a 220 rwhp turbocharged Miata, a PWR 4x6 barrel type intercooler would do just fine, especially on the street. The biggest link is the heat exchanger and that is where the money makes a difference... ( I have heard of some people using transmission cooler and with great success) It is rarely seen that people run air/water intercoolers in turbocharged applications, mainly because throttled volume and throttle response really isn't an issue with internal compression style superchargers, exhaust driven or belt driven. However, on positive displacement eaton-roots style supercharged engines, it is good idea to keep your throttle volume as compact as possible, which is why air/water intercoolers work so well with them. They do the same job without the complex charge pipes. (my 97 M45 air/water intercooler's charge piping consisted of 4 rubber couplers, 2 90 degree elbows, and the intercooler itself.)

With that said, I can't really say anything bad about the air/water intercooled setups. It's all about building it right. Use an excellent heat exchanger with plenty of surface area, have an independant reservoir with 80/20 diluted coolant, and use a strong enough electric water pump, like the Bosch that is supplied with 04/05 Mustang Cobras.

Last edited by Cody Strife; 05-13-2009 at 12:29 AM.
Cody Strife is offline   Reply With Quote
Old 05-13-2009, 12:42 AM   #6
Elite Member
iTrader: (24)
 
kotomile's Avatar
 
Join Date: Oct 2006
Location: Monterey, CA
Posts: 7,578
Total Cats: 40
Default

Quote:
Originally Posted by jcnsue View Post
any idea why, am I thinking right or wrong but it seems that the air/water type ic would be a bit more efficient depending on water temp in the cooler. The JR ic being the inline type seems like it would be relatively efficient at low boost levels, but I guess the ambient air temp could be lower than the ic water temp, thus helping the air to air ic gain ovr the JR type. Heck I'm just flappin I don't know but I'm looking at both types. My kit is a regular greddy type. I'm not looking for 300 horse. I have to drive mine every day so reliability is a major concern. thanks.
Reliability wise, I think I'd pick an air-to-air. No water pump, no electrics involved, no extra hoses and fittings, no additional water weight.

Besides, that JR intercooler sits right behind the radiator.
kotomile is offline   Reply With Quote
Old 05-13-2009, 01:48 PM   #7
Hear me Meow
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,993
Total Cats: 13
Default

I'm having trouble understanding why an A/W IC would be better for our setups. The charge volume isn't a huge deal, so cutting it down isn't a high priority, and with the added complexity of the plumbing, I would really like to know the benefits.
skidude is offline   Reply With Quote
Old 05-13-2009, 01:54 PM   #8
Senior Member
iTrader: (11)
 
Join Date: Sep 2007
Location: Killen, AL, 35645
Posts: 732
Total Cats: 2
Default

Quote:
Originally Posted by kotomile View Post
Reliability wise, I think I'd pick an air-to-air. No water pump, no electrics involved, no extra hoses and fittings, no additional water weight.

Besides, that JR intercooler sits right behind the radiator.
Last I checked the JR intercooler that was sold is a barrel type intercooler that mounts between the supercharger outlet manifold and the throttle body.

With that type, it shouldn't really matter as the heat exchanger will mount in front of the radiator anywayz. You know it is whatever, if you got a inline-type air/water intercooler for a very affordable price, I would just say go ahead and try it. It's really not that big of a deal, and if someone can run the oil feed, oil drain, and water lines for their turbocharger, than the plumbing is a breeze. I know this firsthand. On the 1997 Miata's their is a very handy little place you can mount your water reservoir. It is on the front driver side where the windshield wiper fluid container goes if your car has ABS. I don't know the volume of that particular windshield wiper container, but you could use one of those for very factory look. Just add two 3/4 PVC barbs for your coolant inlet and outlet...

Last edited by Cody Strife; 05-13-2009 at 02:05 PM.
Cody Strife is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
why is my car running like pewp? (tune/datalog) itsMikey MSPNP 3 09-28-2015 07:40 AM
Brand New CX Racing Intercooler + Pipes Adam777 Miata parts for sale/trade 6 09-05-2015 10:41 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 01:41 AM.