Moon Assad

Yeh, you gotta rember that it dosnt get that hot in Japan, Mazda wasnt planning ahead for such high temps. FI dosnt help the situation. If you want your engine to live longer you need to figure out how to cool it down in those areas especialy. How much does Mazda charge to replace your motor off of warrenty?? Even if you still have a warrenty its weeks that you dont have your car. Id think it be cheaper to get a beater for those days were your gona see any engine temps over 210, 220 and higher or get AAA. Im sure most people would rather not have to replace there engine every other year warrenty or not. If you can figure out how not to see the high temps im sure it would make RX-8 more appealing to more people especialy with FI.

MazdaManiac

iTrader: (3)

Well, replacing my engine is cheap and takes a day, but I see your point.

However, Mazda operates a testing facility right here in Arizona and they allegedly beat the crap out of the M2 here for several months before the final model was stamped for go.
I've got pictures of it romping around in the desert.

Likely what happened was they tested and got it all buttoned up and then the accountants got hold of it and the final focus group and they decided that the nose was ugly, the rad was too expensive and the A/C wasn't powerful enough.

Jedi54

iTrader: (7)

^^ funny, sad, most likely true.

Phil's 8

iTrader: (3)

Well I'm hoping that with the engine rebuild, Ray's radiator, Mazmat water pump and a few other mods, that it will run cooler next year. We are almost out of the really hot weather now it's down to 104 and talking about lower temps next week (100 degrees or so)

Brettus

iTrader: (2)

better buy a cardigan ....

Rotr8

iTrader: (2)

At the Rolex Grand Am race this weekend the 70 suffered a puncture to its passenger side oil cooler. Oil was all over the car, when it pitted about 40 mins into the race they looped the oil line and ran 2hrs straight with one oil cooler. After the race Nick Ham was kind enough to brief us on what happened, he said they were running well over 250 oil temps when he called Sylvain over, Sylvain said it was 285 for 2 straight with one oil cooler at race pace....
yikes...... Nick said it made a good Castrol Syntec commercial....

olddragger

iTrader: (3)

corvette owners go to over 250F on the oil all the time--its the coolant that gets ya.
appreciate the feed back on the cool air in the engine bay thingy.
I really dont understand Mazda--it is like they dont want the rotary to continue.
olddragger

olddragger

iTrader: (3)

Good info Juan--am I correct in that the rb scoop really is not cooling anything in the engine bay?
then that changes everything.
i am not running over 180F unless i push her hard and often. max i have ever seen so far on a 92 day was 190-192.
juan you can get yours lower if you want
od

morkusyambo

Hey guys and gal. I suppose I could find it if I looked, but i'm feeling lazy. Anyone know the part# of the belt we're using for the kit??

Bco007

How many of you have installed the racepipe from racing beat? does it make a big difference? Also i just got news from racing beat regarding the long waited headers... anyway when i ordered the racepipe from them i received a phone call from someone over there saying that the racepipe was back ordered. Anyway, i asked about the headers and i showed a great interest. Well the sales person told me that the headers would be out mid September and if i wanted to order them. I immediatly told him yes making me the 1st person(according to him) to place an order. Price is around 550-600 he said but he didn't sound to sure. so everyone get ready the long awaited headers are coming out!!

Moon Assad

Well, once again I guess Mazdas leaving it up to us to figure out how to keep our engines alive.

Moon Assad

Since your still seeing high temps were all you desert guys live does anyone want to do some testing of our cooling setup. To include NA and blower kit and turbo kit RX-8 owners. You must have a way to see your exact temps, not the stock dashmount setups. Im sure its going to make a difference in your temps. Im also looking into the option of 4 coolers stacked 2 high in the higher temps you might see next year. At this time were using the heater line output but theres also the option of Ting into the radiator lines without any difficulty.

olddragger

iTrader: (3)

Phil maybe?
Dude if you get a midpipe get a resonated one--do the search ! Also on the headers--any headers. See if it is worth it to ya.
OD

Razz1

wow! 550 for headers and a 5hp gain.

marsredr100

iTrader: (1)

More like 7 whp with the SC plus your engine will spool a whole lot faster. Shaved 2 seconds to spool the engine up to the preset engine cutoff point.

https://www.rx8club.com/showpost.php...postcount=2523

Rotr8

iTrader: (2)

I imagine with the SC you may see that number get exponentially larger(than 5hp)

Phil's 8

iTrader: (3)

It sounds great. With my engine rebuild I am reluctant to add another mod until such time that the engine is proven "bullet proof". There are some internal changes being made that may effect the cooling along with other mods that were added just before we discovered the loss of compression.

I have a friend here locally that would be perfect for testing of this item. He is n/a and has a very bad overheating problem (his compression is acceptable). He tried the Koyo with terrible results (as have I) and is looking for alternatives. What type of temp gauges would you want installed? If your serious I will bring it up to him and help him.

Charles R. Hill

iTrader: (7)

Hasn't somebody already done something quite similar?

marsredr100

iTrader: (1)

Take a look at my latest project thanks to Rote8. We all know that the alternator is a major heat source under the hood. For example the surface temperature of my alternator reached 180 degrees this morning while idling with the hood open with 78 degrees ambient temperature. Notice what the heat from the alternator did to the adjacent insulation foam area covering the intercooler return 5/8th diameter hose. I decided to reroute the intercooler return hose away from the alternator by running it along the firewall, right fender, front of battery and back to the reservoir. I also took the opportunity to insulate some of the alternator radiating heat from the blower/intercooler and upper intake manifold by installing two pieces of starter heat shield material.

Will it help keeping the alternator heat away from the upper intake/blower/intercooler?
Will it bring the intake temperatures down while driving?

I’ll take the car for a drive tomorrow or Sunday and post the result afterward.

marsredr100

iTrader: (1)

Two more.

munche187

lol I guess it's not just with Mazda What's the update with my Car?

olddragger

iTrader: (3)

i had not thought about shielding the sc unit from the alternator--hmm thats may be something. Cam took his return line and then placed his coolant tank over by the ww tank. then ran the hose forward-- i am thinking about modifing that entire up front unit(tank, hose, heat shielding for the intake(no more scoop in mind!!). I am also asking Summit racing if their alternator fan will fit on our car--it may.
Last yr at Road Atlanta my alternator got so hot it melted the edges of the belt--ambiet was 105F--i was not s.c. at that time.
I also am noticing that my interior a/c-heat fan will have "surges" faster then slower then faster and it is not dependant on anything. The filter is clean. ?????
I am wondering about the voltage regulation.
why does our alternator get so damn hot? other cars it doesnt.
olddragger

paulmasoner

iTrader: (1)

snap!

OD, i talked to Ohio Gen on the phone a few times about alternators.... its rpm mostly.... there are other cars that spin up as well so there are other factors, but mostly its rpm.. the guy i was taling to told me the RX cars were notoriously hard to 'upgrade' the alternator cause they'd just cook or blow up lol.

Moon Assad

Yeh, things happen like tagging a car that pulled out infront of you or tagging a wall at the track.

munche187

that explanation left me a little confused