I thought i'd start a new thread, dunno why, guess i'm tired of finding the old one to keep posting on.

Anyways the new engine is in and running. Seems to be lacking in the boost department though. DAS would like to see 15 lbs of boost and is only seeing 10 (wired shut) as i'm told with a fair amount of black smoke with the current GM-8 on it, thats less than 1/2 of what i had previous to blowing apart, wish i was there to see it, my manual wastegate control was busted so they pretty much had nothing to work with, i told them a long time ago to put a turbo master on it, i guess they forgot so they've rigged up some kinda electric vacuum system to run the wastegate, guess i'll see when i get there. They're guessing at about 220 rwhp the way it is and around 260 if we can get the boost up with another turbo, i would really like to see better numbers than that, guess we'll see when it hits the dyno tomorrow just before i pick it up. Once i pick it up you can guarantee i'll be driving it back to the lake with the scanner hooked up (est 450 km's).

I guess the guy that actually did the build also just finished a stock set-up and after driving both said there's no comparison between the two. Dunno which one he liked better though...

Apparently the old block is still in very good condition (anyone interested?).... its in the best condition it can be in, for beer money from the scrap dealer... sounds like it was busted up pretty bad, guess i'll see that tomorrow also.

I'll be in Maple Ridge tomorrow afternoon if anyone wants to compare notes or just say hi, let me know through a PM and we can exchange ph #s and maybe have a quick meet up for a beer (i really need another beer!!!)
:drinking:

:beerchug: I know you need one man.
Congratulations, 260RWHP is nothing modest.

Congratulations, CR. Sounds like a very hard time with all the trauma and waiting. Sounds like the new engine is going to serve you very well. We'll all be rooting for you and awaiting news of your new baby's performance readings.

All the best,

Rob :)

Congratulations, CR. Sounds like a very hard time with all the trauma and waiting. Sounds like the new engine is going to serve you very well. We'll all be rooting for you and awaiting news of your new baby's performance readings.

All the best,

Rob :)

Give me a day or two to figure out finances.... i may just head south of the border for some REAL R&R yet and i love the drive down the 101.... you close to that TT?

Hi CR. I live in Portland, Oregon. It would be fun to meet up. That's pretty far south, though!

How far you goin' with your newly minted drivetrain?

Sincerely,

Rob :)

Sounds like they just need to do what I did and put a plug in the waste gate hold to get back to a normal high level of boost. That helped mine a lot.

Not the power i was looking for but then again boost was only about 15 PSI. Wastegate is clevised shut tight as a nuns you know what and has hit 20 PSI on a quick run.

A new stock truck with hummer block was run with mine for comparison as it was a fresh rebuild also at DAS.

Stock
Max power = 144.3 HP @ 3000 rpm
Max Torque = 270.7 ft lbs @ 2500 rpm

New 18:1 Engine
Max Power = 210.3 HP @ 2750 rpm
Max Torque = 425.9 @ 2500 rpm.

It will produce more once broke in and with higher boost pressures. What do ya all think?

Huge difference in torque and the peak HP is lower down on the tach which is good. I would be interested in shapes of the respective curves.

Mustang Dyno
Nice curve to 210 HP and held it to the governor
Nice torque also, held over 400 from about 2400 rpm to 3000 rpm before falling off.

All i have is a graph comparing both engines, will post later when i get back home.

Almost forgot, i have some pics i'll post later also.

Sounds interesting, CR. I think you've got all the potential a 6.5L can make at this point, no?

Sounds interesting, CR. I think you've got all the potential a 6.5L can make at this point, no?
No... there has to be more! Actually there is, its in the black smoke out my tailpipe.

Wait, so that is rear wheel horse power? With the true 92 mm^3 pump and a maxed out GM-8? Just get a Holset HX35W and make 25-30 psi and see how it does then. Use all that fuel and make the real numbers that we all want to see.

Yes thats RWHP with the 92mm pump. They didn't have the wastegate tied shut during the run. It has since been tied shut and i have seen 20 PSI post IC.
Is that holset a bolt-on? And what are they worth?

Wait till you see the pics of my old block and crank!

I gues the Holset uses the standard T3 flange. I looked at my buddies '97 5.9 Dodge and his turbo looks like it will bolt right up. I might ask him to borrow it for a week):h . All that is needed then is a new downpipe, and a little intake plumbing.

I am gonna put my feelers out and look for a Holset HY35W and put 25 psi in my 6.5L.

I am gonna need a repromgram soon, I am only putting out 74 mm of fuel. I think before I had 78, but now with the 3 bar map, the computer reads 15 PSI of boost when I am at like 8psi, so it does not put the fuel there.

These are self explanitory.

The new

I'm getting my boost pressures post IC, i'm not sure what the drop is across the IC but its gotta be 2 or 3 psi isn't it? Wouldn't that make it 22 or 23 PSI pre-IC with the GM-8?

Dyno Run

Your numbers are right in line with other 18:1 6.5's that I have seen dynoed. You are losing a fair number of ponies going through your slush box, a manual would probably put about 20 to 30 more hp to the wheels. Nasty looking scrap metal in your old block:( , you could possibly get enough money for a 6 pack if you cash in the aluminum in the pistons):h
All in all, you are putting down respectable numbers for a 6.5, higher than a stock Power stroke or a stock cummins with an automatic.

Those pics of your old engine look mighty familier for some reason... I think you would like a Holset for new engine if that is what you decide.

So anyone have an appropriate turbo to sell me, i'm not much into changing my exhaust to make things fit right now.

So anyone have an appropriate turbo to sell me, i'm not much into changing my exhaust to make things fit right now.
I got a really good GM-4 I'll give you for your GM-8):h. There's a guy at work that's a big cummins guy. I can ask him if he has any turbo's that work and wants to get rid of, but like you and others have said you'll have to re-do some things.

The way my 8 has been working you'd probably blow your engine!

yea but fun while it lasted or till I see the bill for the new motor!!! Any how I'll check on the other and let you know.

Look for me too:o: . I am ready to make a 4 inch downpipe if necessary. I am actually gonna make it a "bolt in" application to where it would bolt to where the cat flange is. That way, I could make a jig and help a couple people out by making them a custom downpipe. The first trial pipe will probably be 3" though.

and for us guys that don't have the cat flange?

I can make them, no problem. But that is me again. I guess I just don't realize how good I have it:rolleyes: . I know how it is though to not have the fabrication resources such as a CNC mill at my finger tips.

CR & Chicago TDP,
I haven't seen the cummins guy yet so far this week but sent him a e-mail stilling waiting to hear back from him. Just didn't you guy's to think I forgot.

do a search on ebay motors for dodge cummins, there are currently several turbo's on there. The last hx35w that I bought, I paid 250.00.;)

I agree with DC, go to ebay. I bought my currenty HY35 nearly new for $250. The WH1C before that was only $200. The sad part is that the ricers have figured out that they can be made to work on their import stuff so sometimes the price get driven up... BTW, I made my own 3.5" downpipe pretty easily. If you've got 3 hrs or so and a mig welder it's pretty simple IMO.

I will look into the turbo's later, i'll give Tex a chance to get me the hybrid model first to see what happens.

Anyways i'm back on the road with trailer in tow, all seems ok so far. I've hit 21 psi with the GM-8, it will go higher yet but i haven't pushed it to see where it will stop, too worried about blowing off an IC hose in the wrong place. 880 km's on the new engine so far. I'm currently in Kelowna and will cruise the Okanogan area for the next day or two. Anyone in the area send me a PM, i'd be happy to stop if i'm in the area. I'll check my messages later tonight depending on internet service.

Sorry,
but no turbo here's.

CR,How is your fuel economy compared to your old engine?

Yea, what r u getting? I am curious too. I will be putting my IC together soon too to give an equal comparison on milage even though you have a 92 mm pump verse my 78 mm.

Right now i'm getting 11.5 mpg/Canadian Gallon and our gallons are larger than yours. I'm towing a 27.5 ft 5th wheel thats 7200+ lbs through the mountains.

I've made 23lbs of boost while watching the gauge. When i wasn't watching towing a 10 km long 8 - 11% grade i blew a IC hose off!!!!!!!!!! Musta hit 25 lbs or so i figure. Remember these are post IC numbers. I fixed that and blew again @ 15 lbs. Now i'm just babying it!!! (well kinda, i've been back to 18 psi)

You need to see if you can find some t-lock clamps for your I/C connections. My hose clamps have blown off several times on my I/C too.

Last year on ebay I found a company with awesome price on stainless T bolt clamps I've yet to blow one since installing them up to 15 psi boost http://vecco.net/hard.htm looks like he still has some good prices

When you blow a hose off, the oil that coats the hose makes it more difficult to seal. There's quite a big ring on the cooler and tubes so once you have them clean and tight they should be good.

I agree with you John to an extent, who has the time to take off all your IC hose's and pipes to clean them though, they were clean and oil free the first time they went on, i'd rather have em tight with a good quality clamp and forget about them. I blew the first hose off 15 minutes from DAS with < 15 PSI. After retorque once heated up and cooling down they made it to 23+ PSI +/- 800 km's later before blowing off again, i spent 2 hours on the side of the road removing and cleaning tubes in 27C weather under a hot engine (ouch), i haven't pushed it past 18 PSI since. T-bolt clamps are on my list of things to get when i get home. Other than that the IC seems to be working great but sadly my scanner software quit working so i don't have any numbers from my mountain pulls. I have some before the scanner quit though. I will dive through them later for posting.

Got my t-clamps out of McMater Carr, a great resource for weird hard to find parts, fast and reliable too.

CR, that fuel filter setup on the firewall is waaayy cool :ro)