Race Ready 7M

[Van]

I have been driving the Supra around 65MPH, ambient air temps in the 90s, with the engine revs around 4-5K for about 5 minutes and the engine starts generating enough heat to cause the temps to start creepin up to just above mid way on the stock temp gauge.
It is my opinion that the 7M needs more cooling capacity. It's already got eight quarts of oil. I'm going to hook up the surge tank, that holds another gallon of fluid in reserve, to the Koyo Racing Rad, see if that doesn't help keep the temps in order... Van

 

[3.0 beast]

nice ..

 

[mecevans]

What size is your oil cooler?

 

[Van]

What size is your oil cooler?

It's a Gen III, RX7 oil cooler.

 

[Van]

Going up a long 3% grade at 55MPH, at 80 degree ambient temp, and a heat soaked engine, when I decided to squeeze the foot feed, quickly putting the CT26 into compressor surge. That is a first for this engine. Just before the surge, I heard the CT26 spooling up, something I've never heard before on the old engine.
I think it's time for an upgraded T4 style turbo set-up. Van

 

[dslocal]

DO IT!
I can't wait to see what this motor can do with a real turbo.:evil2:
Any Idea what turbo your going to run? And do you still have the stock intake manifold on there (have you ported it or anything)?

 

[Van]

Yes, the intake is ported/polished and all the EGR ports and runner, machined off the intake, such that there can never be attached a stock EGR valve. The #6 exhaust port, EGR opening, is welded closed so it is smooth and not a cause for turbulance. The ECU is JDM 7MGTE. Van

---------- Post added at 07:40 PM ---------- Previous post was at 07:37 PM ----------

I managed to get the compressor surge to go away, by adjusting the gain on the Blitz Dual, EBC down to 16 and percent of waste gate set at 80. Van

 

[Van]

Fattys going back on the Dyno at VIP Performance mid month, to get more fine tuning done. This time I'd like to see better numbers: during idle, the motor may not need to run so rich (14.3 A/F); also would like to see less fuel accross the board until WOT, but we'll see what this motor will tell us. Van

 

[thedave925]

I thought for a couple weeks that my engine was getting hot for no reason until i noticed the temp gauge was reading the TCCS's water temp sender, which has different resistance and so hopped the dash gauge about.
I swapped connections at the senders and everything's good/stable.

 

[Van]

Thanks for that... I'll check the TSRM EWD and get that checked out on the 7M. Van

I thought for a couple weeks that my engine was getting hot for no reason until i noticed the temp gauge was reading the TCCS's water temp sender, which has different resistance and so hopped the dash gauge about.
I swapped connections at the senders and everything's good/stable.

 

[Devin LeBlanc]

The ECU water temp sensor is a two wire. The other single wire sensor you are thinking off is for the A/C/aux fan offered one some models.

 

[Van]

That's helpful. Thanks for that... That matches what I'm seeing in both the TSRM and my 7M.
Question is, would it make any difference if I have the temp sensor wire on the A/C aux fan sensor? Van

The ECU water temp sensor is a two wire. The other single wire sensor you are thinking off is for the A/C/aux fan offered one some models.

 

[Van]

I took Ol Fatty back to VIP Performance for some more street tuning and Wryann set the A/F for crusing, under 20% throttle at 15.0 - 16.0; 30 - 60% throttle, A/F 12.5 - 13.0 under 5 psig; 70 - 100% throttle, full boost, A/F 10.8 - 11.3.
The 7M now has the recirc hose attached to the blow-off valve, so there isn't near the stumbling and ovr rich condition, but it still does stumble when under full boost and then I snap the throttle closed while braking hard to come to a stop. Other than that circumstance, it works well at maintaining an idling engine.
Wryann stated that this 7M that M&B Cylinder Head modified and helped build, really likes to be run within these A/F settings. He added that he is surprised that it idles so smoothly at the leaner A/F, w/o a hint of that lean popping sound out the exhaust pipe that accompanies some modified engines.
Van

 

[Van]

[video=youtube;VOFf6BULYR4]http://www.youtube.com/watch?v=VOFf6BULYR4[/video]
I was at a BBQ w/a bunch of fellow Supra owners and decided to have a little fun... The Kumhos do smoke real nicely! This was the end for the Kumho 711s.

 

[CajunKenny]

Hey Van! Glad to hear that you're having fun.

I couldn't get the link to work...

 

[Supra28]

Link isn't working for me neither. :icon_conf

 

[CajunKenny]

Quick! Someone grab a fire extinguisher! He he...

Looking good Van...looking good...

 

[Van]

I finally got the vid to load! check it out in my previous post. Enjoy! Van

 

[CajunKenny]

Sounds healthy!

 

[ma70suprawoner]

hey van i think i keep on seeing your car on a 184th powell right next to gladstone street since my girl friends parents live right down the street from you if im seeing the same supra lol i saw you last sunday while i was changing the alternator on my car in the drive way any who its nice to see other mk3's on the road