supercharged 1hz

[known 2]

lokking at getting more power from my my 1hz and a supercharger looks good if worth a bit more. has any one done this and what results did they get. because i just read a comparo of turbo intercooled 4.2 deisel patrol vs supercharged and the turpo outguned it every where. but that motor is fairly diferent to a toyota and fited a good quality supercharger like eaton or cappa it should be beter than i turbo.

any thoughts or opinions would be apreciated.

[joel HJ60]

Do you have specs of a intercooled TD 1HZ and a Supercharged 1HZ?

[mico]

a mate of mine had a supercharged 1hz. What a weapon the thing pulled like crazy and wasn't that bad on fuel. he was using an eaton M90 (off a s/c Commodore)

[joel HJ60]

Better than turbo?

[mico]

it used to pull harder than another mates with an aftermarket turbo which went pretty hard aswell (was quicker between 80-110 then my old manual commo ute). From memory the s/c conversion was cheaper then the turbo

[quick60]

Been there, I've got a turbo now.
I had a Sprintex (very similar to Eaton) on a 2H then on a 1HZ. Turbo is more fuel efficient, quieter, less maintanence, but less low down torque. You'll get more power than a supercharger out of a turbo if you intercool it too. Look at the Safari web pages for some power figures.

[known 2]

sprintex r one of the lower level brands i was looting at eaton or cappa better quiality more power and safari don't sell turbo's anymore i heard.

[known 2]

anyone else done this

[dumbdunce]

turbos are a lot better value for money, and a turbo well matched to your engine will provide almost instant boost off idle. turbos are cheaper, easier and more reliable, cooler (yes!) and more efficient - there is almost no advantage to a supercharger, especially on a diesel engine.

climb on the turbo bandwagon - if you are handy with a welder (even a stick will do), you can turbo up a 1HZ for about $200 plus the cost of your turbo. suitable turbos pop up on ebay for $100 - $200 starting prices all the time, you'd be hard pressed to get a DIY supercharger in and running for that sort of $.

[JOHNZ]

lokking at getting more power from my my 1hz and a supercharger looks good if worth a bit more. has any one done this and what results did they get. because i just read a comparo of turbo intercooled 4.2 deisel patrol vs supercharged and the turpo outguned it every where. but that motor is fairly diferent to a toyota and fited a good quality supercharger like eaton or cappa it should be beter than i turbo.

any thoughts or opinions would be apreciated.

A WELL SET UP TURBO WILL BLOW OFF A STD 80 SERIES PETROL [WELL MINE DID]

[MACK1]

[quote="dumbdunce"]turbos are a lot better value for money, and a turbo well matched to your engine will provide almost instant boost off idle. turbos are cheaper, easier and more reliable, cooler (yes!) and more efficient - there is almost no advantage to a supercharger, especially on a diesel engine.

HOW DO YOU WORK THAT OUT CONSIDERING SUPERCHARGERS ORIGINATED FROM DEISELS! YES THEY ARE CHEAPER, AS FOR MORE RELIABLE AND ALMOST NO ADVANTAGES ON A DEISEL W.T.F! YOU MAY OF HAD A BAD EXPERIENCE BEFORE BUT WHEN SET UP PROPERLY VERY NOTICALE DIFFERENCE, AND NO IM NOT AGAINST TURBO'S, I OWN,DRIVE AND WORK ON TURBOED AND SUPERCHARGED VECHILES EVERYDAY. PERSONAL EXPERIENCE/DRIVING STYLE AND PEREFERNCE COMES INTO IT. ITS A 50/50 THING YOU EITHER LOVEM OR HATEM.

[dumbdunce]

turbos are a lot better value for money, and a turbo well matched to your engine will provide almost instant boost off idle. turbos are cheaper, easier and more reliable, cooler (yes!) and more efficient - there is almost no advantage to a supercharger, especially on a diesel engine.

HOW DO YOU WORK THAT OUT CONSIDERING SUPERCHARGERS ORIGINATED FROM DEISELS! YES THEY ARE CHEAPER, AS FOR MORE RELIABLE AND ALMOST NO ADVANTAGES ON A DEISEL W.T.F! YOU MAY OF HAD A BAD EXPERIENCE BEFORE BUT WHEN SET UP PROPERLY VERY NOTICALE DIFFERENCE, AND NO IM NOT AGAINST TURBO'S, I OWN,DRIVE AND WORK ON TURBOED AND SUPERCHARGED VECHILES EVERYDAY. PERSONAL EXPERIENCE/DRIVING STYLE AND PEREFERNCE COMES INTO IT. ITS A 50/50 THING YOU EITHER LOVEM OR HATEM.

go easy on the caps lock, man!

what I was saying is, there is no advantage for a supercharger over a turbocharger, especially on a diesel engine - a diesel makes a lot of exhaust volume and velocity from very low rpm and with a modern, ceramic turbine, roller bearing turbo, boost is available right off idle. I was not saying that superchargers don't work - of course they do - but the disadvantages and cost far outweight the almost negligible downsides of a turbo.

[mickyd555]

id like to know how you can do a turbo set up for $200 plus the turbo.......


i have no idea about turbos, but i can weld and i have a very slow N/A diesel

[dumbdunce]

id like to know how you can do a turbo set up for $200 plus the turbo.......


i have no idea about turbos, but i can weld and i have a very slow N/A diesel

you need to build an adaptor to go between the existing exhaust manifold and the turbo, so you have to build 2 flanges out of 6mm steel plate, and a bit of pipe to go between. on some motors it is very simple, eg toyota 1HZ, the adaptor turns out about 35mm long and almost straight pipe between the 2 flanges. depending on engine bay space I would say not too hard on a TD42. this is about $5 worth of steel and 2 hours of fabrication time - or for a few more $ you should be able to pick up pre-fab flanges from an exhaust shop. you need to grab a handful of brass fittings from enzed (under $50) and some hose in 1/4" to plumb oil and water to the turbo. you need to pull the sump and weld or braze an oil return in - a bit of 3/4" or 1/2" pipe will do. you need to put it all together and plumb the exhaust back into the dump pipe of the turbo which may require the manufacture of another flange and a bit of pipe. it really can be done very very cheaply if you have time and fabrication skills. budget about 20 hours to get it all in and running.

[mickyd555]

id like to know how you can do a turbo set up for $200 plus the turbo.......


i have no idea about turbos, but i can weld and i have a very slow N/A diesel

you need to build an adaptor to go between the existing exhaust manifold and the turbo, so you have to build 2 flanges out of 6mm steel plate, and a bit of pipe to go between. on some motors it is very simple, eg toyota 1HZ, the adaptor turns out about 35mm long and almost straight pipe between the 2 flanges. depending on engine bay space I would say not too hard on a TD42. this is about $5 worth of steel and 2 hours of fabrication time - or for a few more $ you should be able to pick up pre-fab flanges from an exhaust shop. you need to grab a handful of brass fittings from enzed (under $50) and some hose in 1/4" to plumb oil and water to the turbo. you need to pull the sump and weld or braze an oil return in - a bit of 3/4" or 1/2" pipe will do. you need to put it all together and plumb the exhaust back into the dump pipe of the turbo which may require the manufacture of another flange and a bit of pipe. it really can be done very very cheaply if you have time and fabrication skills. budget about 20 hours to get it all in and running.

this looks like something i can do.......i have extractors on it already, can i cut them up or is it supposed to be a "one piece" type manifold thing??

in anycase, ill be looking up turbos a bit more now

[dumbdunce]

id like to know how you can do a turbo set up for $200 plus the turbo.......


i have no idea about turbos, but i can weld and i have a very slow N/A diesel

you need to build an adaptor to go between the existing exhaust manifold and the turbo, so you have to build 2 flanges out of 6mm steel plate, and a bit of pipe to go between. on some motors it is very simple, eg toyota 1HZ, the adaptor turns out about 35mm long and almost straight pipe between the 2 flanges. depending on engine bay space I would say not too hard on a TD42. this is about $5 worth of steel and 2 hours of fabrication time - or for a few more $ you should be able to pick up pre-fab flanges from an exhaust shop. you need to grab a handful of brass fittings from enzed (under $50) and some hose in 1/4" to plumb oil and water to the turbo. you need to pull the sump and weld or braze an oil return in - a bit of 3/4" or 1/2" pipe will do. you need to put it all together and plumb the exhaust back into the dump pipe of the turbo which may require the manufacture of another flange and a bit of pipe. it really can be done very very cheaply if you have time and fabrication skills. budget about 20 hours to get it all in and running.

this looks like something i can do.......i have extractors on it already, can i cut them up or is it supposed to be a "one piece" type manifold thing??

in anycase, ill be looking up turbos a bit more now

extractors are a bit more work but can lead to a better result - here is a 4 cylinder example I found after a brief search. of course you need to work out how your turbo is going to fit in your engine bay, and what size turbo is appropriate for your application....

http://photobucket.com/albums/v224/stee ... 0_9890.jpg

[udm]

a turbo well matched to your engine.

Dumbdunce, do you mind giving us a short list of well matched turbos for the 1HZ.

Cheers
Ulises

[dumbdunce]

a turbo well matched to your engine.

Dumbdunce, do you mind giving us a short list of well matched turbos for the 1HZ.

Cheers
Ulises

start by looking at engines with a similar air flow rate and power to your target - for example a 1HZ is 4.2 litres and makes about 4000rpm peak, and at 10psi boost would make about 130kW. Now look for say a japanese* turbo engine that makes more than 130kW, flows about the same amount of air (eg 3 litres at 5600rpm, 2.8 litres at 6000rpm) and makes 175 - 200 horsepower. pick a smaller engine if you want small boost, but want it right off idle, at the expense of top end performance, pick a bigger unit if you want peak performance at the top of the range.

you also have to consider whether the warious outputs (air,oil,water,exhaust) are 'clockable' to directions that will suit your application, and if the wastegate actuator can be mounted in a suitable orientation once the turbo has been fiddled with.

*only because japanese engines are by far the most plentiful turbo/performance units.

I don't have a "list", but when I go shopping for a turbo for a given engine I just do some quick mental arithmetic on what the importers and/or ebay has available at the time, then have a look to see if the turbo needs modification and if it is possible to make it fit.

cheers

[GQ TROL]

Dumbdunce, do you mind giving us a short list of well matched turbos for the 1HZ.

Toyota CT26 turbo is a good place to start. Have used ones from 1HD-T engine, Supra and Celica GT-4 engines.

On a mates 1HZ engine with 1HDT-T cam and fuel pump, he's getting 207HP at the wheels with negligable lag. Used to get hot, but a late model 75 series radiator fixed that.

[known 2]

alot of imfo on turbo's here good stuff but u say diferent size turbo gives diferent performances at diferent revs.
dosn't a super charger give u constant flat out boost throo the whole rev range.

[beanz2]

On a mates 1HZ engine with 1HDT-T cam and fuel pump, he's getting 207HP at the wheels with negligable lag. Used to get hot, but a late model 75 series radiator fixed that.

GQ Trol, why did your mate fit a 1HDT cam to the 1HZ? I understand the valve lift is less than a 1HZ cam. Is the valve timing, duration, etc. better for a turbo?

Anyone else have any idea if this is the go?

Dave

[GQ TROL]

My mate purchased a vehicle with 1HZ engine, that had already had the turbo, cam and fuel pump from the 1HD-T added to it. We pulled it out and swapped it into his 1986 BJ74, as the original 13BT was getting pretty tired. The old engine went into the other truck and was sold.

Have no idea about different specs between the cams, but is makes sense to keep the turbo compatible components together i.e cam, fuel pump etc. 1HZ pump uses 11mm plunger from memory, 1HD-T is 12mm.