You can go xxx mph

 

When you test the M7 and Alta V2 where will you be putting the sensors ? and how many sensors will you be using ?

 

based on running the short course it won't explain much because if you go over 140mph you get bumped to the big track and need full cage etc

 

I am going to run at Bonneville this year with about 6 other MCS's from SCMM. I have a GP IC in my "new" car (ex-Spider-X) and there will also be m7 DFIC's, Gintani units, the FMIC from So. Africa, as well as stock MINI IC's, I don't know about Alta or any other IC's. We won't be instrumented for IC testing - sorry!!


The 130MPH class at Bonneville is like a 1 mile drag race. Standing start, speed trap at 1 mile, 1/2 mile to slow down. It is all about starting technique and top end HP. Because if you fluff the start or the 1-2 shift, you don't have enough distance to make it up in a MINI. Nitrous is not allowed in this class -we asked. The 150 MPH class needs full roll cage - firesuit - fire system - etc. But it is a much longer run up and more expensive to run.


This is my first time on the salt, and those MCS's that have been there before managed 124 MPH. Starting on salt - depending on this years conditions - is sort of like a combo of dirt and gravel - it should be interesting.....


PS - Jan expressed some interest in running the turbo only drag car this year in the higher speed class - if he ever gets those axles - and finds a driver who is willing - I did not volunteer

 

I have access to, and am testing the following:

M7 DFIC 2
ALTA V2 "Flow Through"
GRS
Stock

That forge set up is crazy, it didn't come like that did it? I like how the air catch is welded around it. Pretty neat set up. With it being a one off I'm not sure that the data gathered would benefit anyone other than to quell curiosity. If your interested in how it performs compared to the others I'll certainly run it for you. I'll let you know a for sure date I can run it. That way you wouldn't be without it for too long.

Lemme know

Rob

 

I will be using three sensors and I am only going to be recording:

Ambient Temp
Intercooler Inlet Temp
Intercooler Outlet Temp

The ambient sensor will be placed outside my grill
The inlet and outlet sensors will be placed in the air stream inside the inlet and outlet horns. Right before and after the intercooler.

 

I have a Forge one sitting here in a box.

Also have a GP but that on the car. I guess I could run an OEM for a few days, but gosh the thought of letting the GP IC out of my sight for a few days....

 

HAHA! I hear ya, that would be quite a temptation indeed many many people looking for one of them beauties!

On a serious note, If you want me to let me know. We could schedule a certain date for delivery, testing and return if your interested.


I have been thinking about all the details a bit today. I think the hardest part about all of this is going to be replicating the same conditions and the same runs for every inter cooler. Its quite a task... I am plotting out a course or drive. On the drive there will be points along the way that will gauge temps during:

- WOT thru the gears to "around" 75-80 mph. (freeway)
- WOT stop light driving, be interesting to see recovery time at WOT from a stop and how each inter cooler reacts
- Freeway cruising and downshift romps
- Canyon runs (we have several canyons here that go from about 4000ft to 7000ft in about a 15-20 min drive
- Average street and freeway driving

I am going to be testing these over a 1-3 days at different times of the day so ambient is not going to be constant. I just can't commit the time to test every inter cooler at the same ambient temp. It would just consume to much time and to many days.

 

Rob,

Sounds good you are trying to put a procedure together to make the testing as similar a possible for each unit. FWIW, here's my two cent's;

I would suggest having something to write on in the car, sometimes the hand written notes and details are invaluable when looking back at recorded data and piecing everything together. The data can vary quite a bit with throttle settings. Without sensor input/recording for throttle position, injector duty cycle or some load based calc, keeping throttle settings similar for the tests is paramount.

Anyway, have fun. Try to get some heatsoak/recovery data if you can. I saw 199F inlet temps in stop and go traffic a couple of weeks ago, and it took a long time for it to recover.

 

Thanks Big H, I am going to have another person on the car with me writing things down so we can keep things as accurate as possible. We'll track RPM's and part and full throttle runs best we can.

Yesterday while we were messing around the highest we saw was 171F but it wasn't soaked.

I tell ya, I have been very very freaked out about doing this. It seemed to be a pretty ominous project before yesterday, and I was wondering what I've gotten myself into.. After we started messing around yesterday figuring out the software and making some test runs its turned into a fun project that I'm really looking forward to completing

I just wish I didn't have a job, family and the need for money so I could mess around with this stuff all the time : But since I'm burdened down by those things my timeframe for getting this done is longer than I like.

My wife God bless her has put up with me doing pulley parties for our local club for the last 3 weekends in a row. She knows I love it so she's pretty supportive Anyway, with the holidays and me out of town the following week I have to put this off until the weekend of the 18th.

In the meantime I'll try to throw up a Google map of where I'm doing the tests and try to get everything laid out and ready

 

Pm me your shipping info, I'll cover the cost of getting the Forge IC out to you if someone covers the cost of sending it back to me.

A voice recorder might come in handy too.

 

I'll cover shipping it back to you Nate, and the voice recorder is a excellent idea! I have one somewhere, gonna have to dig for it.

PM sent

 

Put me down for $25.00 to help cover cost. Send me a PM w/ your address. Any one else down for $$? Thanks for doing the testing.

 

171 degrees is pretty hot for IAT's! I barely see those temps on the track with 100 degree ambient temps...

 

Well that was the first time I have ever seen intake and outlet temps at all . We were sitting in my friends garage setting up the software with the car running. We then took some 35mph back roads to a 50mph highway. We drove the car for about 10 min total so I'm guessing that there was a good possibility that it was heat soaked.

I've never known what a "normal temp range" is. All this is new to me
I did notice that when we started moving especially under full throttle and boost that the inlet temps went down. I always thought in my head they would climb due to the supercharger throwing more and more hot air out. Was very interesting to watch. I have no doubt that I will be wiser to the way things work when all is said and done.

 

Which IC was on it when it read 171? Was it after idling or in the middle of the drive?

 

Well, my observations with the stock IC are this:
Idling in traffic with 115 degree ambient temps my IAT's are about 150. If I'm driving normally (Freeway) my IAT's are typically 5-10 above ambient.

If I'm driving really aggressively I see deltas of 20-25 degrees. On the track most recently (At WSIR) I saw temps of about 135 (That's with it about 98).

After 2-3 minutes of driving the IC should be fairly cool. At least that's how it works with mine. Even with IAT's of 160+ idling or sitting parked in the sun or something after 2 minutes of driving I'm down to 10-15 degrees above ambient.

 

Rusty and Ingsoc,

You want scary, as I said above, I've seen 199F on the OBD scanner in stop and go traffic. It usually runs 150-175 in bad situations, but I revved it a few times and the pressure spikes while sitting still shot the temps up.
Mostly, my observations are similar to Rusty's with the stock IC, except that starting at 105F and in first, a hard WOT blast will hit 155+ by the shift to third. That's why the meth is there, cools it back down to 105-115 instantaneously

 

Just to clarify things a bit. We were just testing everything to make sure we were getting readings from the sensors and software.

We didn't have the probes in the airstream. We had them sitting under the boots basically sitting on the IC horns. So, when I threw out the 171 temp that was actually the horn temp.

Like I said, we were just making sure we were getting some readings. Very inaccurate stuff so far.

 

Rusty how are you reading your temps? is it through the obd and if so what are you using.

 

I want to make sure my terminology is correct. The air from the supercharger into the intercooler I have labled "inlet temp". The air leaving the intercooler going to the intake manifold I have labled "outlet temp"

Is that correct terminology?

 

With regards to the intercooler, yes.

 

Shipped the Forge I/C today.

 

Very cool! I'll let you know when I receive it

 

Very cool of you gnatster! I can also help out on shipping costs if needs be!

Rob, I wanna see that thing when it comes in!