Type 1 DTM

NO_H2O · Post by **NO_H2O** » Sun May 30, 2004 5:06 am

I was one of the luck couple of folks to get a DTM Type 1 shroud to do some test/development on. This week I fitted it to a 2275 w/45 dells, 9.7:1 comp. ratio and 44x37.5 Street Eliminator heads (historically hard to cool). We put it on the dyno at Jakes and started her up. On the break-in run it pull a 25 hp or so load @ 2500 rpm for 30 min at the #3 temp was rock solid at 230 deg. F. Thru the 3 sets of dyno runs we never saw head temps get to 300 deg. F. on #3 and the oil temp were very nice with the type 4 oil cooler on board. After she was dialed in we wanted to see what it would take to get 350 deg. F. on #3. So we loaded it up @ 4000 rpm and it took a 71 hp. load for a good long run and we were at 350 deg. F. I would need to tow a bus behind me to load it like that. The dyno room was a balmy 115 deg. with the engine running in there. This engine is no softy either, I will post the dyno graph as soon as Jake emails it to me. It bumps 150 hp and 152 lb.ft of torque The engine will be installed in my car next Saterday and I will monitor #1 and #3 cyl. head temps and report the findings. It looks like the T1 DTM is almost ready to go to market. That of course is up to the man.

DudeAndHisBus · Post by **DudeAndHisBus** » Sun May 30, 2004 12:05 pm

Sweet. Thank you for the update. I was wondering what was happeneing with the T1 DTM.

PruFrok · Post by **PruFrok** » Sun May 30, 2004 12:21 pm

hopefully all goes well and we will be able to purchase the TI DTM soon

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun May 30, 2004 1:42 pm

Yep.... I have one more round of changes to make and I think it will be the best thing since sliced bread. I plan on starting to post more and more pics of it to show you guys the developments that the system has went through.

I also plan on starting a Type I DTM list serv, and will be sending out a mass email to all those who are on our mailing lists already. If you want to get on the mailing list email [email protected]

It came along much better than I thought it would.

NO_H2O · Post by **NO_H2O** » Sun May 30, 2004 2:48 pm

I was very happy with the temps that we saw on the dyno. I didn't expect to see it cool the S.E. heads that well. But now I will drive it on long hwy runs in our hot southern climate without hesitation. I don't know of many engines with these heads that will let you do that.
I don't know how long it will take to fine tune the Type 1 DTM but I'm more than happy with it now and I'm glad to be a part of the development. I know Jake always has a full plate of stuff when I go up there. This trip it looked like he had a full table looking at him (test work of all kinds, high tech coatings, lifter testing, head development, 3 liter enging, 3+ liter engine, plus the normal work load). Lots of cool stuff happening up there. All of it is real cutting edge stuff. As Paul Harvey says...."Stand by for news". The twisted Marine's mind is always working

and some of this stuff is just plain sick.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Sun May 30, 2004 8:10 pm

Just plain sick, is almost sick enough!!!

Guest · Post by **Guest** » Fri Jun 04, 2004 6:31 am

Here's his graph!

NO_H2O · Post by **NO_H2O** » Fri Jun 04, 2004 8:07 pm

Thanks Kathy.

NO_H2O · Post by **NO_H2O** » Wed Jun 09, 2004 3:16 pm

Well I got the engine in and took it out for a romp. The head temps were great. I did get it just past 300 but I was givin' it some hell. #1 and #3 were within 20 deg. of each other every time I look and with in 5 deg of each other at low RPM with light trottle. I did get the oil temp up (220) after a while and I was running it pretty hard. I will Be adding an external cooler before I get it out on the hwy. I just had the onboard Type 4 cooler in use today and it was kind'a hot out at 4:30 to 5:00 pm here in the Atlanta area, it's 87 deg now (6:00pm). It's ok for short trips but I would feel better with an external cooler helping out on long hauls down in this climate.
But realy who builds a 2275 with almost 10 to 1 compression without an external cooler.

I wanted to see what it would do without one.

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Wed Jun 09, 2004 5:07 pm

BTW, He is running street eliminator heads... Thanks for being part of my test program man!!!

Looks like its almost time!

NO_H2O · Post by **NO_H2O** » Wed Jun 09, 2004 8:02 pm

Damn glad to be a part of it.

Wally · Post by **Wally** » Wed Jun 09, 2004 11:11 pm

Amazing stuff!
I run 375F on no.3 and 300F on no. 1 all day just cruising 70 mph in my stock 1800 type 4 with the original cooling system and at 70F ambient temperature.

Jake,
What do you think would a stock type 1 cooling system have done for head temps in NO_H2O's car?

Thanks,
Walter

MASSIVE TYPE IV · Post by **MASSIVE TYPE IV** » Wed Jun 09, 2004 11:45 pm

His oil would have definately been hotter... The difference between the #1 and #3 heads would have been about 40 degrees..

Keep in mind when we first started working with this TI shroud we had temp differences over 100 degrees from #1- #3 cylinders!!!!!!!!!!!!!

Thats a big difference!

VGM · Post by **VGM** » Thu Jun 10, 2004 2:56 am

This is great news!Jake,Thanks for pursuing the DTM for T-1.It's going to be a huge break for the "hot headed" crowd.

69bajakid · Post by **69bajakid** » Sun Jun 13, 2004 10:22 am

Hey jake..i have a 2007 with the CB efi turbo kit on my car...
i am looking for a new shroud system and really would like to get my hands on a carbon fiber DTM for a type 1..my question is..is it wider then a aftermarket 36HP style shroud? the injectors are mounted in my intake manifolds between the manifold itself and the shroud..wich leaves not much room for a wide shroud..a stock dog house would never fit.

the 36HP does but it took some work..

i just dont wanna get my hopes up 2 find that i cant make your shroud fit!

thanx
Cale