I recently purchased a 98 gmc with 6.5 detroit and you said vegetable oil and water methanol? I didnt know that can be a substitute for diesel as this is my first diesel as I've build gas engines with my grandfather and an very familiar with them ive branched out to learn about diesel but besides that ive been using pump diesel for the duration of owning it but i plan on making it a very reliable truck in due time
Hey James, the veggie oil and water/methanol are not directly related as in if combined, they make a fuel. I converted my truck many years ago to burn veggie oil itself and then later added a water/methanol system instead of an intercooler to keep egt's down. I will be covering both set ups in an article and video some day when I have the time.
I love it. It clearly lowers EGT, but it also does two other things that an intercooler does not do... 1 - it takes up less space. (and so it's easier to install too) 2 - (more importantly) it actually adds more power in addition to what you gain from a denser air volume when you run the methanol. And man, it's noticeable.
Thanks for checking out the site Craig! Lot's of reasons to kill the engineer for sure. The starter works well enough if it's set up correctly though, mainly the front bracket needs to be installed.
@@SixFiveTurboGaragecom you know once again chasing some idiot before me. He snapped a tap off way up on that inside bolt and then didn't put that bracket on! Needless to say now I'm a proud owner of 2 6.5's!! Can't decide to just do the swap or go with my top and the newish block. Am watching your videos and having a bourbon and cigar to change my attitude! Definitely will be in touch. Thanks for your help already! C
@@craigmahan5185 Yessir! I hope there's something here to help out. And yup, seems in the automotive world we're always paying for the sins of others. (or is that just life in general?)
Yes sir. With thicker gaskets, you are moving the head away from the block more which creates more volume in the cylinder. When calculating compression ratio, a higher cylinder volume number will result in a lower compression. Two things on that... - You don't have to calculate and know the exact ratio, just know that thicker gaskets = lower compression. - Thicker gaskets result in very little change in compression. With the machining of the heads and block to get a good sealing surface, I just wanted to make up some of that but also I just hadn't been able to get the 18:1 pistons I wanted so I wanted to do what I could to lower compression as much as possible
@@SixFiveTurboGaragecom thanks brother! I’m rebuilding my 1997 6.5 and I can’t express how grateful I am of your channel! I’m trying to get less compression and run slightly higher boost that it did before
@@ClayHollidayz88 Awesome! Glad to help. There's a lot more info on the site too, www.65turbogarage.com. And yup, that's the idea. These things have so much more compression than the Fords and Cummins, lowering it can really help them last. Just remember that it may result in harder starting in the cold so a manual glow plug setup and Bosch Duraterms or AC Delco 60G's will help that.
Hey look what just popped up!!! Just started watching. Thanks for posting
Yeah, I almost sent you a message to let you know but I figured eh, Google will tell him for me! : )>
I hope to get more out soon.
22 u
Ha ha i did that same thing on an old 460. But man i fought it way longer. Till some old timer asked me how many bolts i had out lol
Yup! From now on, I count 'em. Sheesh.
@@SixFiveTurboGaragecom Lol I done the same on another engine! Had my eye on those nuts as soon as you started prying.
I recently purchased a 98 gmc with 6.5 detroit and you said vegetable oil and water methanol? I didnt know that can be a substitute for diesel as this is my first diesel as I've build gas engines with my grandfather and an very familiar with them ive branched out to learn about diesel but besides that ive been using pump diesel for the duration of owning it but i plan on making it a very reliable truck in due time
Hey James, the veggie oil and water/methanol are not directly related as in if combined, they make a fuel. I converted my truck many years ago to burn veggie oil itself and then later added a water/methanol system instead of an intercooler to keep egt's down.
I will be covering both set ups in an article and video some day when I have the time.
@@SixFiveTurboGaragecom ill look forward to seeing it thanks
It’s what happens when you only have one breaker bar
How do you like the water/meth and do you notice a difference in your egt’s ?. I was thinking on adding it to my 6.5.
I love it.
It clearly lowers EGT, but it also does two other things that an intercooler does not do...
1 - it takes up less space. (and so it's easier to install too)
2 - (more importantly) it actually adds more power in addition to what you gain from a denser air volume when you run the methanol. And man, it's noticeable.
@@SixFiveTurboGaragecom how much do you use? A gallon in 200 miles? No clue so don't chew me out lol!
Dont say meth man! As Fat Freddy used to say.." speed kills but cough syrup is ok!"
Got a 95 GMC SUBURBAN 6.5 TD... I want to kill the engineer that decided a 2 bolt starter was a good idea!! Going to check your website
Thanks for checking out the site Craig!
Lot's of reasons to kill the engineer for sure. The starter works well enough if it's set up correctly though, mainly the front bracket needs to be installed.
@@SixFiveTurboGaragecom you know once again chasing some idiot before me. He snapped a tap off way up on that inside bolt and then didn't put that bracket on! Needless to say now I'm a proud owner of 2 6.5's!! Can't decide to just do the swap or go with my top and the newish block. Am watching your videos and having a bourbon and cigar to change my attitude! Definitely will be in touch. Thanks for your help already! C
@@craigmahan5185 Yessir! I hope there's something here to help out.
And yup, seems in the automotive world we're always paying for the sins of others. (or is that just life in general?)
@@SixFiveTurboGaragecom I've got to hurry speaking of "sins"... brother I hope your at a pretty good elevation... theres a storm a brewing.
So for less compression bigger gaskets?
Yes sir. With thicker gaskets, you are moving the head away from the block more which creates more volume in the cylinder. When calculating compression ratio, a higher cylinder volume number will result in a lower compression.
Two things on that...
- You don't have to calculate and know the exact ratio, just know that thicker gaskets = lower compression.
- Thicker gaskets result in very little change in compression. With the machining of the heads and block to get a good sealing surface, I just wanted to make up some of that but also I just hadn't been able to get the 18:1 pistons I wanted so I wanted to do what I could to lower compression as much as possible
@@SixFiveTurboGaragecom thanks brother! I’m rebuilding my 1997 6.5 and I can’t express how grateful I am of your channel! I’m trying to get less compression and run slightly higher boost that it did before
@@ClayHollidayz88 Awesome! Glad to help. There's a lot more info on the site too, www.65turbogarage.com.
And yup, that's the idea. These things have so much more compression than the Fords and Cummins, lowering it can really help them last. Just remember that it may result in harder starting in the cold so a manual glow plug setup and Bosch Duraterms or AC Delco 60G's will help that.
@@SixFiveTurboGaragecom ok thank you!
You don't have the right tools man.
Get a Half inch Craftsman Electric Impact gun!
Takes 5 minutes to yank the head off, both of them
Yeah, I'm building a motor in a tent, I can't disagree with you there. : )>
@@SixFiveTurboGaragecom I was rebuilding engines under the sky for ten years.
@@We-Do-NOT-Consent-303 Yeah it's actually nice, but can be pretty rough when you really need to get something done.