Increasing Horsepower

[Soundguy]

Oh now don't go start introducing facts into this debate

soundguy

 

[EddieWalker]

whitetiger,

Good hearing from you!!!

I'd listen to what he has to say, he was extremely helpful to me with my engine rebuild for my dozer.

I'm no expert on diesels and rely heavily on the advice of people like whitetiger and Rob, but in every single instance that I've modified a gasoline engine, I've had problems with other things. As a teenager and even into my early 20's, I thought I new more then the engineers who designed and built the vehicles that I was modifying. After spending tens of thousands of dollars in modifications to numersous vehicles, I learned that I didn't know anything and those engineers actually build a vehicle that works just fine if left alone. Even more importantly, if left alone and kept in proper factory running condition, it will work every time!!!!!!!!!

I still like modifying and tinkering with things, but would never even think about doing it to something I needed, or if it's the only one I have. Stock works all the time, modified will always fail on you.

Eddie

 

[Renze]

[ quote)Take the TW series tractors ,105-197hp ,Same engine just turbo and intercooler differences,

All TW series engines are not the same, severial major differences in them like valves, heads, pistons, rods, crank shaft, flywheel, injectors, intake manifold, exhaust manifold to name a few.[/QUOTE]

...Dont forget the most important thing: the intercooler !!!
removing an intercooler from allmost any high horsepowered engine, will result in too high exhaust gas temperatures and molten pistons !

Intercoolers are a 3 times more efficient way to prevent piston meltdowns than oil jets. According to Deutz factory test data in the early days of turbo-ing, the 60's, a 100ｰC drop in intake air temperature would roughly cause a 300ｰC drop in exhaust gas temperature.

I screwed the pump on our 5245 Zetor open a bit, to get close to 57 hp as we were disappointed by it, compared to its predecessor the 4712 with 53 PTO hp (instead of 45 crank)

Mostly, if a 4 cylinder engine is built with the same basic parts as a 3 cylinder, you dont have to worry for the crankshaft of the 3 cylinder as it has the same crank diameters.



A cousin in Canada was tuning his Dodge diesel, it was stock 200 hp but he got 260 hp at 0.8 bar charge. He said he was told that on a non intercooled engine, as a rule of thumb 0.8 bar charge was the maximum to stay within the safe limits of exhaust gas temperature, to keep away from the danger zone where aluminium pistons may melt.

I know of a guy who has his stock 80 hp Zetor 8045 turbo'd and is now doing 140 PTO hp at 800 degrees exhaust gas temperature, he claims... I dont say its impossible, as this Zetor 4 cylinder engine is about the same chunk of steel as a JD 404 6 cylinder engine, but i have my doubts about his story....

 

[Tororider]

Has anybody tried this? We are thinking we will do it ourselves, just turn it a half turn, or however much someone with knowledge can suggest, and go from there. We really don't need to know what the exact hp at the pto is.

 

[Conservation]

Something to remember too is if you are brushhogging, it is probably nice, warm weather, and you are working it constantly. My cooling system on my 1050 doesn't leave much extra capacity. If you are only using it as an extra burst now and then, then that is that. If the throttle is wide open for a half hour at a time, you may see your water temp creeping up there. I need to keep clutches in mine before getting carried away for sure!

 

[mcd176]

You could always upgrade to a bigger tractor

 

[wvpolekat]

whitetiger,

Good hearing from you!!!

I'd listen to what he has to say, he was extremely helpful to me with my engine rebuild for my dozer.

I'm no expert on diesels and rely heavily on the advice of people like whitetiger and Rob, but in every single instance that I've modified a gasoline engine, I've had problems with other things. As a teenager and even into my early 20's, I thought I new more then the engineers who designed and built the vehicles that I was modifying. After spending tens of thousands of dollars in modifications to numersous vehicles, I learned that I didn't know anything and those engineers actually build a vehicle that works just fine if left alone. Even more importantly, if left alone and kept in proper factory running condition, it will work every time!!!!!!!!!

I still like modifying and tinkering with things, but would never even think about doing it to something I needed, or if it's the only one I have. Stock works all the time, modified will always fail on you.

Eddie

AMEN! I agree 100%. Them engineers in white coats do things for a reason. There is place for modifcations, and I have thought about doing some things to help my f-250 lug my 10,000lb fifth wheel up the hills, but in the end, I am not going to strand my family on the side of the road for a few horsepower.

 

[powerstroke444e]

I really like seeing the high horse power pickup trucks on the side of the road with the weakest link broken but he did pass me 10 miles back. High horse power = fun today work tommorow---stock = work today fun tommorow.

 

[AndyMA]

Turbo engines also usually start with a lower compression ratio. Additing a turbo to a non turbo engine can cause it to run over it's' design cylinder pressure.

Andy

 

[Soundguy]

Yep.. i used to have an old mid 80's pontiac sunbird.. had a lil turbocharged engine.. the turbo models got a spacer that lowered their comp ratio vs the non turbo models.

soundguy