What about this engine??

[jamisobe]

So I did a little research.

https://home.comcast.net/~jcmiley/main4btinfo.htm

The 1FZ peak (without mods) is at 360 ft lbs of torque at 3200 rpm. Stock hp is 215 - I suspect I am at 225-245hp at about 4400 rpm with modded exhaust.

The 4BT peak is at 105 hp and 290 ft lbs of torque at 1700rpm.

Although they sound close (sort of) and the 4BT is turning much slower (using less fuel) I see an advantage on paper for the 1FZ. Even with mild mods it looks like the 4BT is just matching the top generation stock 1FZ.

If you talk fully modded the 4BT is at 250hp and 500ft lb of torque. Now it will beat the stock 1FZ. But that still appears to be shy of the Duramax in its stock form. Not sure about the 6BT.

 

[jamisobe]

Ease of install and gas mileage would be the two things I care most about in a swap..along with the side thought of being close to stock power.

More importantly, I would be contacting my local food establishments to get my free grease agreements setup when I converted to the 4BT and run the little bang bang on used grease...can't beat that cost per gallon.

X2 on the grease and the mileage. But ease of installation and maintaining stock power isn't key for me.

 

[KliersLC]

So I did a little research.

https://home.comcast.net/~jcmiley/main4btinfo.htm

The 1FZ peak (without mods) is at 360 ft lbs of torque at 3200 rpm. Stock hp is 215 - I suspect I am at 225-245hp at about 4400 rpm with modded exhaust.

The 4BT peak is at 105 hp and 290 ft lbs of torque at 1700rpm.
.

I was under the impression that the 1fzfe runs at 275 ft/lbs.....


Also, IIRC, GreaseCruiser has done several of these swaps, so if he says he can smoke you in the 1/4, I'd put my money on him regardless of the numbers on paper.

 

[jamisobe]

I was under the impression that the 1fzfe runs at 275 ft/lbs.....


Also, IIRC, GreaseCruiser has done several of these swaps, so if he says he can smoke you in the 1/4, I'd put my money on him regardless of the numbers on paper.

I think the different results of these two links are becuase of rpm differences.

FZJ80 Specifications

FZJ80m specs #2

I wouldn't bet on it (I wouldn't bet period) though I have my doubts.

 

[jamisobe]

Sorry, I didn't intend to hi-jack your thread. I was simply making a comment of opinion that was challenged, for some reason, by Discoyota's opinion. I see nothing wrong with the 4BT for those who aren't looking for an increase of power to go along with an increase in mileage. As far as the 1HZ I have no idea.

 

[poseidon]

this page has a little info about some of the stock toy diesels:
http://www.luxuryimports.ca/vehicles/specs.php

Talk to the guys at G&S, they have answered all of my diesel emails and been very helpful. Heard nothing but great stuff about them and how they do business.
http://www.gscruiserparts.com/

E