89 GMC Cummins conversion

[84chevyguyid]

Chiming in, have one in my vette. I also have a tune that a guy sent me for a 4L80E behind a cummins, ended up going with the allison but I saved the tune jic. I can email that to you if you like.

[whitels1]

Awesome job with the swap everything looks nice and clean, I read through you build. The chrome wheels give it a nice look and I like what you did with the caps. I have a set of h2's that will be going on the K10 at some point and I might steal your idea with the caps.

[COS399]

Originally Posted by whitels1

Awesome job with the swap everything looks nice and clean, I read through you build. The chrome wheels give it a nice look and I like what you did with the caps. I have a set of h2's that will be going on the K10 at some point and I might steal your idea with the caps.

Thanks. I sure wish I could edit videos like you do.

[COS399]

Mike, Thanks for sending me that tune for my transmission. I ended up using one that Dawna sent me that had been tweaked. It still needs some fine tuning due to the differences in vehicles such as: HP, Torque, gear ratios, tire size, etc....

It now goes into 4th and locks up the torque converter but it takes a looooooooooooooooooooooooooooooooong time to shift from 3rd to 4th. Once it hits 4th, it immediately locks up the TQ. The shift from 1st to 2nd is quite the opposite, it isn't in 1st for more than a few feet before upshifting.

Tje good news is that my boy got his license today. The bad news is that I have decided to make him buy his first vehicle. Of course we will match his contribution to the purchase, but I feel that this will help him in the long run. I'm sure some of you will agree with my decision and some of you won't. Of course if he wanted to fix up the International we could do that as well.

[Dieselwrencher]

That's great to hear you're out there driving it again! I don't blame you one bit for making him but his ride. Or at least work for it. One of my brothers just used family vehicles and it took him a long time to appreciate having his own. I'm hoping to build my kids their first vehicles but that's just because I don't think it will be a good deal to have to buy them. We'll have to see when that time gets here. I've got a little time. Haha

[COS399]

Wow! Just got off the phone with my insurance company and it turns out that adding my kid to the policy added $985.80 per year. Everyone said it would double and I'm glad it didn't but it did increase by 50%. All my vehicles are now for sale and I will be in the market for a horse and buggy.

[Dieselwrencher]

Will feed and hay be cheaper than a 50% increase of insurance?

[84chevyguyid]

Probably will be cheaper right now as the price of hay sucks! LOL. So what was that tune like I sent ya? When did the converter lock up with it? On the vette I liked it to happen just after second gear. I never have been able to get a good solid 2-3 shift on the vette, just mushes into third. Never dared trying a 3-4 shift under full power as thats just too fast give the current condition of the car (old, stock drivelines, ect). Had one of my sons with me the last time I had it on the road, we were racing around with one of my buddies on his 1000 kawasaki and according to him we were a touch over 140 by his bike and the passenger T top just blew off! Talk about scare the s&*t out of us. I expected it to be splattered all over the road but it just got scraped up some. My kid and I looked at each other and said, well I think its time to head home!
Glad to hear its on the road! You bringing it to the dunes this summer?

[COS399]

I haven't even tried the tune you sent me, I may try it on my next set of days off. Glad to hear that your out having some fun with the Vette. Maybe I should get my kid to buy a diesel Che-Vette. Do you remember the Chevette?

As for taking it to dunes, well let's just say it may have a new home in Texas before I make it down there.

[COS399]

Mike- I tried you tune and it shifted into 4th sooner but would not unlock the converter for a longer time frame than it should. I was able to tweak Dawna's tune to where it shifts like it should now. It could use a little more fine tuning but it will have to wait for now. We got a couple of inches of moisture last week so everything is in full bloom so I have some yard work to do and a few other projects that need my attention.

[MTCK]

Glad you're getting it dialed in. I never really thought about it but these transmissions never came behind something even remotely similar to your motor.

[MTCK]

Ah bummer! Sad to see it go and hope you did good on the $ale.

[COS399]

I lost some money but gained a lot of valuable experience building it.

[collect t/as]

It will be enjoyed and taken care of.

[6BT 56]

So what are the plans for the new truck ? Is it just a driveline donor ?

[COS399]

Originally Posted by 6BT 56

So what are the plans for the new truck ? Is it just a driveline donor ?

Yep, that's the plan. I will have to post in the "Alternate Tinkering" section since it's an International. I am picking up a one owner 1981 GMC Jimmy 4x4 in the next couple of days and see if my boy has any interest in it. So, I may have two projects going.

[Dieselwrencher]

Originally Posted by COS399

Yep, that's the plan. I will have to post in the "Alternate Tinkering" section since it's an International. I am picking up a one owner 1981 GMC Jimmy 4x4 in the next couple of days and see if my boy has any interest in it. So, I may have two projects going.

I would just post it in here. I've put ford swaps in here.

[collect t/as]

It will enjoy it's new 12 valve sibling.

[Dieselwrencher]

Man, looks like you got lucky missing those storms! Love the ol ford, and look at her doing work. I'm anxious for you to get on the next project! What's the story on the trans am gmc? Obviously has a 6 cylinder. Haha

[collect t/as]

Originally Posted by Dieselwrencher

What's the story on the trans am gmc? Obviously has a 6 cylinder. Haha

http://67-72chevytrucks.com/vboard/s...d.php?t=679352

[COS399]

I was going to give you the link but he already replied.

[collect t/as]

I got the windows tinted today. Small progress but a big improvement in my opinion.

[MTCK]

Looks good, and it stayed in the family!

[COS399]

Looks nice.

[whitels1]

I was so sad that you sold this truck I could not post, but now that I see it stayed in the family, I'm stoked! The truck looks great!