Toyota V8 Exhaust Pipes Length/Size

[Topcroc]

do NOT drop the whisky, hope the mechanic get his back in order, and take some pix with your good arm.

We are waiting with interest.

[melvinmelvin]

do NOT drop the whisky, hope the mechanic get his back in order, and take some pix with your good arm.

We are waiting with interest.

no no, I manage to walk from Foodland and 600 meters back to room without losing anything.

the mechanic is OK, it was the chap that produces craddles that had the back problem

anyway, the mill came back, in its craddle, as promised, it is looking quite good

in the craddle and with the radiator also mounted

the 1UZ is a very very compact V8

I had a check on it yesterday,

its currently in Koh Kred in the longtail factory, awaiting the finalization of the longtail

what the chang yon (mechanic) said yesterday was that in 6 to 8 days the engine will be mounted in the boat,

and then another week or so to finalize

so, 3 weeks maybe

am not really keen on pushing for the chang yon to finish the work as my left arm is pretty weak

I am not at all sure that I am able to control the engine/longtail at speed

had a go with a smaller taxi boat yesterday (Taxi meter engine, about 70-75 hp when running on gas I guess)

that was reasonably OK but had to reduce speed compared to how I normally drive in narrow klongs.

the 1UZ on benzin sports about 260/270 hp,

when driving at speed mainly controlled by left arm and right leg

not sure I can manage that yet, if ever

it is possible though to move the steering rod from the starboard side of the engine to the port side

and then control the beast with the right arm and left leg

will have to see when time comes

I am rather lousy with cameras, I know, but at least my camera is in LoS rather than in Europe,

will try and take some pics

[melvinmelvin]

at last

yesterday the mill was installed in the boat and the longtail attached

something was wrong with the gearbox or the link between gear and driveshaft, not sure what

hopefully it will sorted out today

have some photos, but cannot transfer from camera to computer on this computer

what surprised me was how quickly the craddle / swivel for the engine was installed

some big solid hardwood beams were bolted with huge bolts to two stringers

and the swivel/craddle on top

didn't take more than 20 minutes.

and then the mill was lowered and fastened, 10 minutes

then another 10 minutes for the longtail

[Topcroc]

OK mate, we were worried about the broken whisky, bad backs etc.

Now we deserve a picture

[melvinmelvin]

here goes

MOV04535.MPG

and

MOV04538.MPG

MOV04535.MPG

[melvinmelvin]

the "download"

[Topcroc]

Melvin, looks good you should be getting excited now.

What is your plan on exhaust pipes and cooling of them?.

[hedonist44]

Melvin, looks good you should be getting excited now.

What is your plan on exhaust pipes and cooling of them?.

The exhaust will most likely be up and out from the engine and thus no need for cooling them. The only time you need to inject water for cooling is when the exhaust are inclosed in an engine room or the exhaust system travels for a ways inside the hull of the boat before exiting out the back.

Having some experience running flat bottoms back in the States (years ago) with big block Chevys, the only time someone would run wet headers is if they were trying to reduce the sound a bit.

Personally I never ran a wet stack and prefered to run my dry stacks and blow everyone's mind I hope Melvin will do the same as long as he's got some ear plugs What's the point in having a fast and flash boat if you can't let them know your coming.....and make them think twice about pulling up along side and wanting to have a go with you.

[seedy]

Looks good - good job.

Can't wait for a MPEG of it running on the water !!!

[melvinmelvin]

the pipes are very short and pointing slightly upwards

my initial thinking was to arrange for wet exhaust,

in order to reduce the sound a bit, it is quite loud

thought of arranging the pipes in a U form, to avoid water back in the mill when stopping

will think a bit further about this, see how much space there is etc.

there are a number of things I want to do before wet exhaust

[hedonist44]

the pipes are very short and pointing slightly upwards

my initial thinking was to arrange for wet exhaust,

in order to reduce the sound a bit, it is quite loud

thought of arranging the pipes in a U form, to avoid water back in the mill when stopping

will think a bit further about this, see how much space there is etc.

there are a number of things I want to do before wet exhaust

Sorry, just posted some pics of different exhaust you might consider, but then I think you know what you want already and won't clog this thread up. Your ride is looking very nice, good job!

Edited August 21, 2012 by hedonist44

[Topcroc]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

[transam]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

Yep, point down at a slight angle or put a trap ''doors'' on, like big rigs.

[hedonist44]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

Yep, point down at a slight angle or put a trap ''doors'' on, like big rigs.

[seedy]

Nice blown SBC - any chance of pic of complete boat ???

Edited August 21, 2012 by seedy

[mogandave]

Injection is nice, but....

[melvinmelvin]

Looks good - good job.

Can't wait for a MPEG of it running on the water !!!

hmm,

kinda tricky this photo/movie thing, when I am in the boat myself,

also, ain't no good take photos from the jetty,

funny this video thing I posted, I had no idea my camera could do video,

that was a feature i triggered by pure accident,

have tried to trigger it again, in vain

I am usually taking 1 shot with the camera every 18 months,

you could say that cameras are very far away from interest sphere

[melvinmelvin]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

Yep, point down at a slight angle or put a trap ''doors'' on, like big rigs.

that one looks nice

my idea was to have two 3-inch pipes on each side. ie 2 cylinders/pipe

when various filters and my double battery idea and the fuel tank is properly put in place

I will have to check on available space

I would like wet exhaust in order to silence the thing a bit, it is loud,

Thais enjoy noise but they go to bed early and are probably not happy with being wakened up just after

going to sleep

cant fuc_k up the whole neighbourhood at 11 evening

______

U-------

after the pipes leave the engine I was thinking that having them horisontal would be OK

then the U

into which I will pump water

then another horisontal length of pipe for the outlet of gas and water

but I am wondering how much difference in height do I need between the two horisontal streches of pipe

to avoid water coming back into the engine???????????

any advice?????????????

[melvinmelvin]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

Yep, point down at a slight angle or put a trap ''doors'' on, like big rigs.

that one looks nice

my idea was to have two 3-inch pipes on each side. ie 2 cylinders/pipe

when various filters and my double battery idea and the fuel tank is properly put in place

I will have to check on available space

I would like wet exhaust in order to silence the thing a bit, it is loud,

Thais enjoy noise but they go to bed early and are probably not happy with being wakened up just after

going to sleep

cant fuc_k up the whole neighbourhood at 11 evening

______

U-------

after the pipes leave the engine I was thinking that having them horisontal would be OK

then the U

into which I will pump water

then another horisontal length of pipe for the outlet of gas and water

but I am wondering how much difference in height do I need between the two horisontal streches of pipe

to avoid water coming back into the engine???????????

any advice?????????????

fuc_kin silly, impossible to make sketches here, what is rendered above is quite far from how it looked on my screen

...................................................___

.........................................................U-----------

now, pretend that all the periods are not there, how much vertical distance would I need between the two horisontal lines?

[melvinmelvin]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

when left for time I guess I will have the longtail out of water, which means the engine roughly horisontal,

and the pipes roughly horisontal,

(upwards pointing pipes right now, but will have to change that)

easy to just put some plastic socks on the pipes

[melvinmelvin]

If you are just having the exhaust pipes straight out, whether bent up-straight or down, remember when the boat is left for periods of time the exhaust pipes must be on a downward angle so rain water will not accumulate and enter the manifold/valves etc.

This can possably be achieved with the angle of the engine on the gimble??.

It is a great project and am looking forward to seeing pix and actual in Dec.

Yep, point down at a slight angle or put a trap ''doors'' on, like big rigs.

the more look at this one the more I like it,

If I have to conclude that there is not enough space for my U and wet exhaust idea then I'll probably

go for 4 short stacks each side (horisontal though, it rains a bit here in LoS)

[melvinmelvin]

spare parts

so far my experience is that it is very very close to fuc_kin impossible to buy new/original spare parts

for the 1UZFE engine

2nd hand is not that tricky to find, but it is not that fun to buy 2nd hand spare parts

I had to buy a 2nd hand fuel/crap filter, much to my dislike, dunno how much crap is already inside

fuel/water filter was easier, bought that in a marine shop in Patts

a number of shops in the BKK Worachak area have filters, but for diesel only

there are lots and lots of 1UZs in LoS, I wonder what people do for sparts?

have managed to buy oil filters and spare sump plug and spark plugs and thermostats and fanbelts\

and thats about it

there are a few things I'd like to buy, like fuel/crap filter

like spare gaskets for the lid covering the valves etc

no way, two shops specialising in original Toyota spare parts ahve in vain tried to get things from Japan

they say that Toyota offers very very bad service for the 1UZ engine

[hedonist44]

Nice blown SBC - any chance of pic of complete boat ???

[seedy]

Thanks for the Pics - envy now setting in !!!

[hedonist44]

Here are a few more options that seems to fit with your thinking.

http://www.cpperformance.com/m-50-lightning-headers.aspx

[melvinmelvin]

Here are a few more options that seems to fit with your thinking.

http://www.cpperform...ng-headers.aspx

thanks, some nice stuff there

[melvinmelvin]

saw the boat at speed yesterday, the mechanic driving it,

exiting, looks and sounds very good

getting nearer to practical usage now, the sling (wire) for the longtail was installed yesterday

the electrician is having some problems getting the instruments (pressure and temperatures to work properly)

also have some problems with overheating,

despite the radiator being BIG

the fan is likely to small and too far away from the radiator

will look for new fan today

[EvilDrSomkid]

Get a proper shroud for the fan, too.

[transam]

Get a proper shroud for the fan, too.

Yep, a shroud is very important, if none the fan will pull air from the easiest place, which will not be through the rad. Leave as small a gap possible at the blade tips.

[melvinmelvin]

Get a proper shroud for the fan, too.

shroud????? sorry, but whats that? some cover to prevent the fan from taking air from above/below/the sides of the radiator?