mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 14, 2019 15:48:18 GMT
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Looks like a great build. Make the exhaust as big as you can fit even if it means making oval tubing. I recently made a system for a 2JZ Supra with a HX50 and got a 5" downpipe and 4" CSA exhaust in. Spooled 850rpm sooner than with the custom 4" DP/3.5" system that was on it before a huge difference to driveability. It's enough to feel a big difference in the car which on a 800hp engine means it's a fair power increase. I was planning on going from the 3.5 turbo outlet up to a 4 maybe even a 4.5 inch downpipe. Been doing some reading on the subject and cant believe the difference the downpipe has made to spool rpm and bhp. My only problem is going to be there is no way on gods green earth I can get a 4.5 inch pipe past the engine above the front subframe and if I go below il lose it on a speed bump... I have had a slightly mental idea about getting some thick wall 5 inch steel tube and notching the subframe/cross member and replacing the notch with the thick tube (probably makes no sense in my explanation but I know what I mean haha) but wel see. I could do with another subframe to chop about if I'm honest |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 14, 2019 15:51:14 GMT
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This is freakin' great. The car looks amazing but what I am fascinated by is the use of the 1UZFE engines. I will be checking in on this thread to watch it progress because I have used a 1UZfe in the past, but left the wiring and auto box stock with mixed results. I have plans to use this engine again- so watching this build I am learning a few things! Great write up, great pics. Crack on then- Wizard! I can't take credit for the wiring. The guy I use is an absolute wizard. He's a South African guy and they put the uz in everything over there. Purely because it's so dependable. Hel be doing the wiring on this too but like I say with full standalone.. it would take me a lifetime to gain 1/10 of the knowledge he has and I don't have that time lol. |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 14, 2019 15:52:57 GMT
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Thanks for the positive feedback this far.
My current dilemma is wastegates. Single or twin. What size? What position. And do I use genuine or Chinese...
More reeding required me thinks
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Sept 14, 2019 21:48:02 GMT
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go for genuine Chinese ones
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Sept 14, 2019 23:37:31 GMT
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Is there room to get the wastegate where the 2 manifolds meet at the turbo flange - one pipe from each manifold into a single wastegate flange joint (kinda the opposite direction but same layout of the manifold to turbo flange joint but in smaller pipe) so the wastegate would be hung downwards underneath the turbo. It looks to be the best place to get them to work properly imo.
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 7:33:29 GMT
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go for genuine Chinese ones That's what I was thinking too  |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 7:35:51 GMT
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Is there room to get the wastegate where the 2 manifolds meet at the turbo flange - one pipe from each manifold into a single wastegate flange joint (kinda the opposite direction but same layout of the manifold to turbo flange joint but in smaller pipe) so the wastegate would be hung downwards underneath the turbo. It looks to be the best place to get them to work properly imo. That's what I was thinking.. were the 2 bends sweep upwards into the turbo flange. Mirror that and point downwards assuming I've got space and run the wastegate there.. reading around for a single it's going to have to be 60mm or more tho.. and 60mm qenuine gates arent cheap  Other option is 2 smaller say 38/40mm gates and try a couple of cheap Chinese flavour ones. |
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Sept 15, 2019 13:29:51 GMT
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Make them easily accessible if you can, I was at a shop recently that has a small bin filled with the ebay gates, one of them lasted only a few minutes. Go cheap, but buy a couple extra. And a South African guy that wires 1UZ's? I may need that contact one day  - I do love those engines.  |
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Sept 15, 2019 13:45:30 GMT
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On the Chinese builds I've helped with a good branded wastegate fitted correctly has always ended up being what's happened and what I'd recommend now. Controlling the boost is the most critical bit and the thing that a lot seem to overlook, all the other Chinese stuff works fine as long as you control it properly.
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 14:03:40 GMT
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My thought is there isn't a lot to them. Assuming they move correctly they seal properly then what is there to really go wrong.. I was planning on the initial runs being on wastegate spring pressure alone prob 7/8psi.. id say it's more important whatever is being used to control them is a reliable unit.. I don't know haha.
And the South African guy is called Chris Taylor. Runs a company now called phoenix engine management..there on FB if you have a look failing that I've got his number. Honestly the blokes a genius.and for the quality of his work and the price he charges it's a no brained.
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Sept 15, 2019 15:12:06 GMT
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I always thought that the IS200 was a good looking car crying out for a good engine. Well done that man!! I am bookmarked and am in for the slightly bonkers ride!! |
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Sept 15, 2019 16:51:21 GMT
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So we're was I up to? I had the car had the engine. Had the conversion bits, needed a turbo. Planned on going down the Chinese eBay special route.. now before anyone shoots me down I've got no problem with using the chinese turbos.. the quality has come on and if you pay more than the 89 quid bargain specials they arent 3 bad..fitted a Chinese core to a 6 cyl mitsi engine at work in a truck. It did 18 months of 40 hour weeks before the truck was sold and was a 1/10 of the "genuine" mitsi turbo.. Well that idea went out of window when I acquired a genuine holset hx50, and quite a rare one to boot with a 3.5 inch exhaust side 4 inch inlet and being water cooled (a lot of the hx50s I've seen are purely oil) brand new... Only thing is the exhaust side has a marmon flange rather than a normal v band so il have to either buy a flange or get it modified to accept a v band... Now it's meant to be rated to 850 bhp, I'm going no were near that (long term plan is 500 at crank, short term is "some" boost to prove everything I've done works)... It's a big old lump     Now an is200 engine bay isn't the biggest thing in the world. And I remember the last one was tight to get in.. so now I had to find space for that big old thing aswell... I may have overestimated space/ability a little Next up the manifold saga Is that a Mardave Cobra hiding at the back on your workbench  ?? |
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Sept 15, 2019 17:40:56 GMT
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My thought is there isn't a lot to them. Assuming they move correctly they seal properly then what is there to really go wrong.. I was planning on the initial runs being on wastegate spring pressure alone prob 7/8psi.. id say it's more important whatever is being used to control them is a reliable unit.. I don't know haha. And the South African guy is called Chris Taylor. Runs a company now called phoenix engine management..there on FB if you have a look failing that I've got his number. Honestly the blokes a genius.and for the quality of his work and the price he charges it's a no brained. The issues ive seen were burst diaphragms. However the quality and consistency of Chinese stuff is getting better and better so they may be OK - plenty of people running them without issue from a bit of googling ive just done. I use a lot of Chinese parts now, the con rods and pistons are more accurate and consistent than the branded stuff coming out of America (probably made in the same Chinese factory then finished in the US) and I've had a few of the Chinese performance aftermarket copy cylinder heads and they've been bang on. |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 18:38:52 GMT
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I always thought that the IS200 was a good looking car crying out for a good engine. Well done that man!! I am bookmarked and am in for the slightly bonkers ride!! My thoughts exactly... Even the altezza that everyone gets excited about is 200bhp... Having raced bikes my sense of fast is broken and tbh a 200bhp is200 just doesn't cut it for me... 500bhp on the other hand. That's a bit more interesting |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 18:41:50 GMT
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So we're was I up to? I had the car had the engine. Had the conversion bits, needed a turbo. Planned on going down the Chinese eBay special route.. now before anyone shoots me down I've got no problem with using the chinese turbos.. the quality has come on and if you pay more than the 89 quid bargain specials they arent 3 bad..fitted a Chinese core to a 6 cyl mitsi engine at work in a truck. It did 18 months of 40 hour weeks before the truck was sold and was a 1/10 of the "genuine" mitsi turbo.. Well that idea went out of window when I acquired a genuine holset hx50, and quite a rare one to boot with a 3.5 inch exhaust side 4 inch inlet and being water cooled (a lot of the hx50s I've seen are purely oil) brand new... Only thing is the exhaust side has a marmon flange rather than a normal v band so il have to either buy a flange or get it modified to accept a v band... Now it's meant to be rated to 850 bhp, I'm going no were near that (long term plan is 500 at crank, short term is "some" boost to prove everything I've done works)... It's a big old lump Now an is200 engine bay isn't the biggest thing in the world. And I remember the last one was tight to get in.. so now I had to find space for that big old thing aswell... I may have overestimated space/ability a little Next up the manifold saga Is that a Mardave Cobra hiding at the back on your workbench ?? It is indeed haha. Good spot that man. I had one in the 90s as a kid. I know stuff has moved on miles but it was just another one of them things I had to have for sentimental reasons lol. They also seem to be going up in value which is nice.. might need the money to finish this haha |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 18:46:40 GMT
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My thought is there isn't a lot to them. Assuming they move correctly they seal properly then what is there to really go wrong.. I was planning on the initial runs being on wastegate spring pressure alone prob 7/8psi.. id say it's more important whatever is being used to control them is a reliable unit.. I don't know haha. And the South African guy is called Chris Taylor. Runs a company now called phoenix engine management..there on FB if you have a look failing that I've got his number. Honestly the blokes a genius.and for the quality of his work and the price he charges it's a no brained. The issues ive seen were burst diaphragms. However the quality and consistency of Chinese stuff is getting better and better so they may be OK - plenty of people running them without issue from a bit of googling ive just done. I use a lot of Chinese parts now, the con rods and pistons are more accurate and consistent than the branded stuff coming out of America (probably made in the same Chinese factory then finished in the US) and I've had a few of the Chinese performance aftermarket copy cylinder heads and they've been bang on. I've no problem with Chinese stuff.. it's moved on so far in last ten years it's us that are left playing catch up.. when I had a quick Google most of the problems seemed to have been between 2009 and 2012... Things have moved on a lot since then, and like you say I'm not sure how much of it comes off the same production lines anyhow. If you imagine the tooling cost of setting up to make wastegates for example.. American company gives them the design and orders 10,000 of them. Chinese factory finishes the production run and just carries on churning them out knowing the original company were never going to come back anyways. Yeah the American ones "may" go through some secondary quality control etc. But I doubt it.. General consensus here seems to be fit the Chinese special and send it! And it's exactly that mentality I love haha |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 19:57:50 GMT
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Sept 15, 2019 20:11:09 GMT
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The issues ive seen were burst diaphragms. However the quality and consistency of Chinese stuff is getting better and better so they may be OK - plenty of people running them without issue from a bit of googling ive just done. I use a lot of Chinese parts now, the con rods and pistons are more accurate and consistent than the branded stuff coming out of America (probably made in the same Chinese factory then finished in the US) and I've had a few of the Chinese performance aftermarket copy cylinder heads and they've been bang on. I've no problem with Chinese stuff.. it's moved on so far in last ten years it's us that are left playing catch up.. when I had a quick Google most of the problems seemed to have been between 2009 and 2012... Things have moved on a lot since then, and like you say I'm not sure how much of it comes off the same production lines anyhow. If you imagine the tooling cost of setting up to make wastegates for example.. American company gives them the design and orders 10,000 of them. Chinese factory finishes the production run and just carries on churning them out knowing the original company were never going to come back anyways. Yeah the American ones "may" go through some secondary quality control etc. But I doubt it.. General consensus here seems to be fit the Chinese special and send it! And it's exactly that mentality I love haha Aye, it makes me laugh that people blame the Chinese for copying stuff when the Western world sent a lot of their manufacturing there in the first place for reasons of greed/cost cutting, and now it's come back to bite them on the  . I've got a LS on at the minute that has Chinese copy "Brodix" heads and they're a better casting and CNC finish than the real deal, for a 6th of the price. |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Sept 15, 2019 20:24:06 GMT
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Yeah I come across it all time both In work and in stuff I do at home. Luckily I'm not a brand snob and can see past the glitzy advertising and silly claims.
Fine example was a model car part.. had the "genuine" one in one hand and the copy "clone" part in other. (Copy part was 1/3 of price)... Both parts had exact same flash marks, exact same machine marks and measured up exactly same to the mm.. and funnily enough weighed the same too.. yet the European and American "manufacturers" want us to believe the Chinese copy parts haha.. either there very good at copying bits and getting tooling same material same etc. Or they had both came off the same line..
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Sept 15, 2019 21:26:25 GMT
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I've worked for a (very big) Chinese automotive company and yes, they are very good at copying things as long as they are made of metal. They are a bit "flexible" where specifications & contracts are concerned though - I could cite a case where the development 3 way cats for a 2.0T gasoline project came with the correct precious metal loading on them ('cos they hadn't been awarded the contract at that point) but the production ones only had half as much so didn't work quite so well (but were obviously cheaper to make)...
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Last Edit: Sept 16, 2019 18:18:12 GMT by rallyboy
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- I do love those engines.
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