engine cooling - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 06-09-2009, 03:30 PM   #21
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

the old "coolradiator.com" and "radiator barn" radiators seem to be the best around this side of Ron Davis and CRR money, but they're out of business. I was at the track at 90* in Texas with roughly 300whp and only needed the fans after a few laps in, with shitty ducting they kept blowing out on the bottom so I really had no ducting. Below 90* and I never needed the fans on. I also need to improve my ducting.

If I had to do it again I'd buy a sprint car radiator and fab up mounts...or just go with a Ron Davis..

Last edited by hustler; 06-09-2009 at 05:04 PM.
hustler is offline   Reply With Quote
Old 06-09-2009, 04:27 PM   #22
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,367
Total Cats: 1,331
Default

With CSF out of business (coolradiator/radiator barn), the only rad I'd recommend for a turbo car would be a 55mm Koyo, or something custom and larger.
Savington is offline   Reply With Quote
Old 06-16-2009, 05:07 PM   #23
Junior Member
 
Join Date: Dec 2008
Location: Ft. Lauderdale, FL
Posts: 273
Total Cats: 7
Default

Quote:
Originally Posted by dustinb View Post
I'm sorry, but do you even know what a turbo is or how it works? Power is power. A turbo isn't going to function any different in 1/2 hour on the track, or 1/2 hour on the street - it will be the same. It makes power, regardless of where you drive your car. Whether you can handle that power on a track comes down to your driving competence and how the rest of your car is set up.

Please do some reading.
I'm sorry, but do you even know what a 1/2 hour on track is like? While a turbo may make the same power a 1/2 on track as it does while doing a 1/2 hour on the street, the engine will not. Please tell me where you live, so that I can drive a 1/2 hour on the street like I do on track. I have never driven for a 1/2 hour, where 90% of that 1/2 hour I am at full throttle, dropping down to second, then going full throttle through 5th gear on the street!
MX5RACER is offline   Reply With Quote
Old 06-16-2009, 10:39 PM   #24
Newb
Thread Starter
 
Join Date: Jun 2009
Posts: 9
Total Cats: 0
Default

Quote:
Originally Posted by MX5RACER View Post
I'm sorry, but do you even know what a 1/2 hour on track is like? While a turbo may make the same power a 1/2 on track as it does while doing a 1/2 hour on the street, the engine will not. Please tell me where you live, so that I can drive a 1/2 hour on the street like I do on track. I have never driven for a 1/2 hour, where 90% of that 1/2 hour I am at full throttle, dropping down to second, then going full throttle through 5th gear on the street!
Thank you!!!! MX5RACER......There is no comparison between driving on the track and driving on the street. There have been many replies from people who are not posers and actually use there cars on the track or just know the difference.

I appreciate all the other good advice about the larger radiators and the thermostat mods. I will do some more searching within the forum for sim. topics.
r1rod is offline   Reply With Quote
Old 06-16-2009, 10:50 PM   #25
Elite Member
 
Join Date: Feb 2008
Location: Victoria, BC
Posts: 2,322
Total Cats: 12
Default

Quote:
Originally Posted by MX5RACER View Post
I'm sorry, but do you even know what a 1/2 hour on track is like? While a turbo may make the same power a 1/2 on track as it does while doing a 1/2 hour on the street, the engine will not. Please tell me where you live, so that I can drive a 1/2 hour on the street like I do on track. I have never driven for a 1/2 hour, where 90% of that 1/2 hour I am at full throttle, dropping down to second, then going full throttle through 5th gear on the street!
Ok so this is what I was originally quoting:

I heard the turbos work awesome in the street but not during 1/2 hour sessions at the track.

- I stand by my statement. A turbo functions EXACTLY the same if its driven on the street or on a track. You are driving the car harder on the track, and you might have overheating issues if not set up properly, but the TURBO DOES NOT FUNCTION ANY DIFFERENT IF IT IS BEING USED ON THE TRACK OR A STREET. It's not like it suddenly makes less power because it's on a closed track then a highway... unless your heatsoaking your intercooler and your engine management is taking timing out... but the turbo is still spinning, oil coming in, oil going out... As I read the original post, I figured the OP was very confused about turbo's in general, and I know several people (including some on this forum), who use a turbo miata on a track for a half hour.
dustinb is offline   Reply With Quote
Old 06-17-2009, 05:34 PM   #26
Junior Member
 
Join Date: Dec 2008
Location: Ft. Lauderdale, FL
Posts: 273
Total Cats: 7
Default

Quote:
Originally Posted by dustinb View Post
Ok so this is what I was originally quoting:

I heard the turbos work awesome in the street but not during 1/2 hour sessions at the track.

- I stand by my statement. A turbo functions EXACTLY the same if its driven on the street or on a track. You are driving the car harder on the track, and you might have overheating issues if not set up properly, but the TURBO DOES NOT FUNCTION ANY DIFFERENT IF IT IS BEING USED ON THE TRACK OR A STREET. It's not like it suddenly makes less power because it's on a closed track then a highway... unless your heatsoaking your intercooler and your engine management is taking timing out... but the turbo is still spinning, oil coming in, oil going out... As I read the original post, I figured the OP was very confused about turbo's in general, and I know several people (including some on this forum), who use a turbo miata on a track for a half hour.
Well thank you for addressing the fact that you semi-blasted the OP without really knowing what they were asking. I understand that it gets frustrating dealing with newbs who just post, instead of searching, but these forums are a way for the community to come together and help each other.
MX5RACER is offline   Reply With Quote
Old 06-18-2009, 10:16 AM   #27
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by MX5RACER View Post
Well thank you for addressing the fact that you semi-blasted the OP without really knowing what they were asking. I understand that it gets frustrating dealing with newbs who just post, instead of searching, but these forums are a way for the community to come together and help each other.
I see that you only have 10-posts here, so I'm going to help you out for the good of the community. If you're going to chastise any member here, I'm going to need you to run it by me through a PM first. I don't really want to get into the consequences of not adhering to this policy, or the hospital bills involved, just please do yourself a favor and respect everyone here by asking my permission before you post anything like this. I'd go into this further but I'm in Tehran right now to eliminate a few "issues" and keep the United States as the greatest, safest nation in the world.

k
thx
bye
hustler is offline   Reply With Quote
Old 06-19-2009, 08:38 AM   #28
Junior Member
 
Join Date: Dec 2008
Location: Ft. Lauderdale, FL
Posts: 273
Total Cats: 7
Default

Quote:
Originally Posted by hustler View Post
I see that you only have 10-posts here, so I'm going to help you out for the good of the community. If you're going to chastise any member here, I'm going to need you to run it by me through a PM first. I don't really want to get into the consequences of not adhering to this policy, or the hospital bills involved, just please do yourself a favor and respect everyone here by asking my permission before you post anything like this. I'd go into this further but I'm in Tehran right now to eliminate a few "issues" and keep the United States as the greatest, safest nation in the world.

k
thx
bye
I ment no disrespect to anyone. I will refrain from such posts in the future. Again, I ment no disrespect to anyone. And yes I am a to this Forum, so thanks for lookin' out.

Last edited by MX5RACER; 06-19-2009 at 10:04 AM.
MX5RACER is offline   Reply With Quote
Old 06-19-2009, 10:50 AM   #29
Elite Member
iTrader: (17)
 
Join Date: May 2007
Location: NY
Posts: 1,614
Total Cats: 2
Default

Its confirmed, Hustler now has Jedi mind trick capabilities, beware!
TonyV is offline   Reply With Quote
Old 06-19-2009, 12:34 PM   #30
Guest
iTrader: (6)
 
Join Date: Sep 2007
Location: Vaughan, On, Canada
Posts: 1,092
Total Cats: 0
Default

Quote:
Originally Posted by r1rod View Post
Does the 949 racing coolant re-route help the issue?
It certainly does... The Florida, Cali and Arizona Folks love it, since they are in some of the hottest areas of the US.
M-Tuned is offline   Reply With Quote
Old 06-25-2009, 07:04 PM   #31
Newb
 
Join Date: Mar 2006
Posts: 27
Total Cats: 0
Default

Odd Question here since we're on the topic of hot days and cooling.

I heard people go as far to say a reroute(m-tuned or other) on a stock rad in good condition with proper mix should be more then enough to cool pretty much anything under regular circumstance, unless you are tracking under 110 degrees desert sun, then pretty much anything will overheat eventually.

Truth?
Skittles is offline   Reply With Quote
Old 06-25-2009, 11:38 PM   #32
Elite Member
iTrader: (17)
 
Join Date: Aug 2007
Location: Fort Myers, FL
Posts: 2,791
Total Cats: 130
Default

I don't think a coolant reroute really cools more than the stock setup, maybe a little (I guess it depends where you're taking the temperature), it really just ensures better cooling across the motor. The problem is that when the stock setup gets hot it basically leaves the hot water sitting in the back cylinders with little water flow.

I'm currently running a custom reroute, effectively the same as the kits offered, on a stock radiator, in south Florida, and I haven't had any problems overheating at all under regular cirumstances. There have been a few times I've been ready to put the car into a wall to put myself out of my misery from the ridiculous heat, meanwhile my temp gauge reads a consistently cool 187.

So in answer to your question, I would say that is true; under regular circumstances a stock radiator w/ a reroute is sufficient. Also, even if you do have an upgraded radiator, it's still a good idea to do a reroute to ensure those back cylinders aren't boiling.
pdexta is offline   Reply With Quote
Old 06-26-2009, 08:48 PM   #33
Senior Member
 
steelrat's Avatar
 
Join Date: Jul 2005
Posts: 514
Total Cats: 0
Default

So here's a slight spin on this... I've basically got a stock auto rad, and after adding the TDR, I've been finding that the car will run hot with the AC on, in 30+ degree C days... (90+?) after about 20mins or so....

So the question is... what's the better choice... rad or re-route? I've been trying to figure this out the last couple of days... and reading everything again, just well gets more confusing. <G>

Most people do the rad, then do the re-route if necessary. I'm just curious if I should be doing the re-route, then the rad if necessary.

Oh and if anybody is running with the TDR, which rad are you runnin'?

Dave,
steelrat is offline   Reply With Quote
Old 06-28-2009, 04:27 AM   #34
Newb
 
Join Date: Dec 2007
Posts: 12
Total Cats: 0
Default

bigger radiator for sure, you can always do the re-route later.
mnkypsycho is offline   Reply With Quote
Old 06-28-2009, 11:51 AM   #35
Newb
 
Join Date: Mar 2006
Posts: 27
Total Cats: 0
Default

I'd do the reroute first... This is what I plan on doing first myself anyway.

Here is my logic.

You are not necesseraly "overheating", it only says where the sensor is, at the back of the block where there is little coolant flow, it's getting hotter. By doing the reroute you are pulling all the heat away from the motor and sending it to the rad. I beleive a bigger rad will only accentuate the temperature difference between the front and the back of the motor since that coolant at the back of the motor still wont be circulating more with a bigger rad.

That's what I think, I could be wrong, I could be right... i'll still do the reroute first. and take it from there. For sure that Reroute+Bigger rad is the end all solution to everything tho.
Skittles is offline   Reply With Quote
Old 06-28-2009, 12:00 PM   #36
Newb
 
Join Date: Mar 2006
Posts: 27
Total Cats: 0
Default

On that subject, i've been wondering if anyone ever hooked up 2 temp gauge (to the front and to the back) on a stock cooled motor too see what the difference was?
Skittles is offline   Reply With Quote
Old 06-28-2009, 02:33 PM   #37
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

BTDT. Back in 2001 or so I had a thermocouple son the back of the head heater outlet and the front (t-stat) outlet. At idle the difference was huge, something like 8-10*C. At high RPM it diminished, to something like 2*C. I think the reroute will actually help low speed stop and go overheating more than track performance. However at the track every little bit helps.

In fact the first thing I noticed after my reroute was that my temps in stop and go traffic went down.
JasonC SBB is offline   Reply With Quote
Old 06-28-2009, 11:25 PM   #38
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,680
Total Cats: 1,561
Default

Big rad from Mishimoto solved my overheating problems, but I'm not adding two or three times as much fuel energy to my situation yet - I'm not boosting yet. But mine was constantly overheating on autocross days in the summer down here before the rad change. Big difference.

Edit: Got the Mishi from our forum sponsor Turbochargers.com
sixshooter is online now   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 Yesterday 09:00 PM
Changing from 460cc to flow force 610cc in diypnp 90 Turbo MEGAsquirt 19 10-19-2015 04:23 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Are my coils failing? viriiguy General Miata Chat 5 09-28-2015 08:39 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 07:35 AM.