olddragger

iTrader: (3)

I wonder what time i will be doing? Going without dsc this time.
olddragger

Stop&TurnFreak

I have no doubt, you will. I think you will find yourself in the sub 1.28's by the time you are done. With the R's, you may even be lin the 1.26's, but it all depends on how well your girl can stretch her legs. Not getting down the straight is @3 seconds per lap.

I am siked, I can't wait for this event. I am debating on my next round of mods.....not power, NOPE, BRAKES......

L8APEX

after your scare in 10a at road atlanta, I am not surprised that you are going after brakes. I would too.

I am looking forward to getting out a a new track, it will be a lot of fun. but May is a long time away, I hope the time between now and then flys, cause I am ready for some more track.

Stop&TurnFreak

I am ready for some more track too.....I can't wait for Roebling, but the Z06's will be humbling in my class.

TrackAddict

As some other people have pointed out, Roebling has less stuff to hit but an off is potentially dangerous due to the rollover risk. That being said, turning off DSC is a purer driving experience. I had it on at Roebling last year for my first session to get a feel for the track then turned it off for the rest of the day. It came on once in session 1 in turn 5 when I got a bit of sideways slip. In session 2, I got the same sideways slip one time but the car just slid a couple of feet and kept going in the direction i wanted. Bottom line was that it moved a bit on the track but was balanced and easy to control.
I ran DSC off at Rockingham the whole weekend since DSC hated the banking. Once again, no drama and I pushed the car as hard as I could for some laps. i will continue to use DSC as a safety net on the first sesssions just to make sure the car is handling OK and to test the available grip of the track.
I would recommend turning it off and backing off the speed, then build up.

TrackAddict

I am getting some track tomorrow

SilverEIGHT

I'm envious!

olddragger

iTrader: (3)

Good advice TA about the dsc. My plans exactly. I think my lower drive ratio will be more help at roebling than it was at RA. My goal is by the second day is to be sub 1:26--maybe a 1:25.9! Aactually my goal is as allways --have fun,maybe learn something(always have) and to have fun. Oh yea I am going to have fun also.
I WILL have some gauges by then. At least oil pressure and oil temp. Hopefull I will have water temp also but our stock water temp gauge is at least real.
Maybe up for an experiment. What do yall think of this.
Like I say i will have the oil temp gauge installed. What about monitoring the oil track temps then after that I install a 3nd oil cooler and see how effective it is in reducing the temps? The install shouldnt take that long--couple of hours. I will pre-package it so the install will not be guesswork.
I am anticipating our oil is getting hotter than we realize. And this would be a great opportunity for the study. Thoughts?
olddraagger

whiterex

Don't have that option.... no DSC here.

legokcen

Sorry I've been out of pocket lately. I've been preoccupied (see below). I don't think it'll be ready for Roebling. Maybe the next RoadA. I've got a business trip the end of the week right before this on the 18th of May, but I'm going to try really hard to make this one. Anyone going to Seattime at the middle of this month?

SilverEIGHT

Lego, that looks like a fun project car. Can't wait to see it on the track.

Stop&TurnFreak

Good looking car, very clean. Can't wait to see you guys at Roebling Road.

olddragger

iTrader: (3)

Ok then Ill just do the oil cooler install before roebling.
OD

L8APEX

i did not realize that an extra oil cooler could be installed, and on what data did you determine that we needed another one. I would think that would increase the oil capacity of the whole system, and might cause an issue or two, maybe oil pressure. But I don't claim to know enough about it. With all the track time accumulated by this group, and knock on wood, not one issue, I am not sure we need three oil coolers.

legokcen

STF has a cool way to cool down his turbo. He's hooked up this windshield washer system (I think) to spray water onto the tubo in order to cool it (maybe it sprays onto the intercooler). Anyway, we could do something like that to spray water on the oil cooler so that it will cool it down when on cool down laps. If we do it to the 1st one in series, it'll cool the oil down a lot more. Have it spray on the cooler and then the water evaporation with the air flowing through it will cool it down even more then just air flowing through it. Just a thought.

Stop&TurnFreak

That would work well, but having an oil-cooler makes a HUGE difference on a n/a car. My buddies Porsche would never get about 185 at the track, no matter how lon gyou ran it, once he put the cooler on it.

L8APEX

but to this point, has anyone had trouble with the stock setup. I have not read of it, if someone has, please direct me to it, but with what little I know, and no tests to show that a change was warranted, I would be very wary of interjecting on a system that seems to be very well thought out, complicated, and one that would have very costly consequences if you did something wrong, or did not think about one little detail in the planning stage. just ask some of the folks who bolted on the Greddy turbo.

I'm just saying, that this car seems to be very touchy when it comes to changing things, and I would bet that the oil cooling and pump system would probably be just as finicky as the rest of it. And, Mazda seemed to squeeze all of the N/A power out of it they could get, meaning they have thought and rethought every aspect and detail, I can't see why they would have left the oil cooling system out of that think tank.

-L8

olddragger

iTrader: (3)

Ok guys listen.
The rotary runs hot--right. The engine is actually partially cooled by the oil --right. Jay (a NASA member living in Florida) has recorded CONSISTANT oil temps of 260+ on the track. All instructors I have had the pleasure to ride with have oil temp gauges in their cars and at times they actually back off running a 10/10 lap because their oil temps where getting high.
Ok-- with that. We all are getting more and more track time--that is great. But in order to properly mantain and care for our cars we need more data than we get with the stock gauges. everyone does know the stock oil pressure gauge is a dummy gauge right? How do we know on high g turns, hard stops etc our oil pressure is ok? We dont. How do we know that our oil temps are ok--we dont. And we are running a 20wgt oil!
Now the 8 was designed well but not for track use. The oil coolers are designed well for STREET use and still cars in Texas in the summer(with the ac on) have had engine failures it is THOUGHT(not proven) due to the oil getting to hot. What other stock car comes with 2 oil coolers from the factory? Must be a reason right? And we know life on the track is harder than street driving.
Our oil coolers are not highly technical. They are just supplied by the engine to the primary cooler(drivers side) and then the primary supplies to the secondary cooler and the secondary cooler to the engine. A simple loop. (Unless you have an automatic which only has 1 cooler) All you have to do is to mount an additional cooler in between them. There will be no lost of pressure with it. It does increase the oil capacity to the degree of how big a cooler you use--this is a good thing.
I am going to install some gauges 1st and see what my street temps are.
Now if that is something to think about--how about this. I am also thinking of removing my waterpump and gaining about maybe 20hp doing it? hehehe.
ever heard of electric water pump set up? I haven't fully researched this yet but hey it may work out? Think about that!
Meanwhile I really think an additional oil coller is a great idea for us here in the south.
olddragger

olddragger

iTrader: (3)

by the way if any of you have ever had a low coolant warning light to come on then check your rear engine seal. (this is what is happening )mostly in Texas). The seal may be leaking and you sometimes will not notice a puddle on the driveway. Remember coolant is not a usuable item. If you are low it is going somewhere.
Also any puffs of white smoke coming from your exhaust.
Hot oil baby--hot oil will hurt the rear seal for sure.
olddragger

L8APEX

your defense sounds very good. I am very interested to see what your gauges tell you, when you have the data logged, please share it. I would lvoe to add some functioanl gauges, but they are damn expensive. Maybe I need to bite the bullet on that one. are there any options out there that are less costly than the Defi sets that I have seen. I would like to monitor oil pressure, temp and water temp.



and I don't know about white puffs of smoke at the exhaust, I have been told that my car spits fireballs...

olddragger

iTrader: (3)

plenty of good gauges out there that are not expensive. I have chosen the auto tech pro comp gauges. they are about $50 to 75 dollors apiece, plus the pod and sensors. end up being about $$250-$275 uninstalled.
olddragger

L8APEX

i'm not excited or anything...I just spend time all day looking for aerials of tracks...

legokcen

I'm going with autometer gauges too. In the 7 though. I'm going with the water temp, oil temp, oil pressure.

Thought I'd let everyone know. The RX-7 is now ALIVE after 2+ years of storage. With a RB Holley 460 scfm Carb and RB full exhaust, it's loud as hell and I love it! The suspension is picked, but not ordered yet. I don't think I'll have it done for the May NASA event, but the next one after that I will.

Anyway. I"m really excited and I thought I'd share.

SilverEIGHT

I'm excited too! Can't wait to see it and take a ride with you.

Phlash

Hotel Roomie list....

Phlash, L8, and Silver
TA and Francois
STF and Steven (is he coming)?
OD and Mrs OD
WhiteRex and .....
Lego? and ........