shrike Posted October 28, 2020 Share Posted October 28, 2020 https://www.trademe.co.nz/a/motors/car-parts-accessories/toyota/diffs-axles/listing/2839812080 2 Quote Link to comment Share on other sites More sharing options...
shrike Posted October 28, 2020 Share Posted October 28, 2020 Surely someone has a broken C series box that can have the diff be donated to the cause and get locked :p actually wonder if any pickapart has a box I've only got E series boxes these days 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted October 28, 2020 Author Share Posted October 28, 2020 Yeah at Zebra theres shitloads of echos. A few manual. With tyre pressure trickery it hooks up off the line great now. So for drags at least I think ill be ok with open diff for the moment. The motor rocks so much from launching that it yanks the hose off the charcoal can and I broke a trumpet when it hit the radiator crossmember. Will fill the mounts with polyurethane but the rear one looks like a wanker to get out. And the spring bolt things on the exhaust manifold look severely rusted in place and wont budge. So likely staying as is for a while. When my new shed is built I think ill buy a prius motor and maybe another box. But today got a $3k quote to fix my teeth so I dont think ill be doing any more spending on this for a while. Still a few "free" things I can sort out though in the meantime. Â 6 Quote Link to comment Share on other sites More sharing options...
kws Posted October 28, 2020 Share Posted October 28, 2020 Aliexpress engine damper to help with rocking? 1 Quote Link to comment Share on other sites More sharing options...
chris r Posted October 28, 2020 Share Posted October 28, 2020 Or solid mount it for the drags? Bit of metal to the firewall 3 Quote Link to comment Share on other sites More sharing options...
Popular Post tortron Posted October 29, 2020 Popular Post Share Posted October 29, 2020 5 hours ago, chris r said: Or solid mount it for the drags? Bit of metal to the firewall 6 3 1 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Roman Posted October 29, 2020 Author Popular Post Share Posted October 29, 2020 My name is David and this is my story about a 1NZ exhaust manifold I found at Zebra. Firstly, imagine 4 flacid penises accidentally getting sucked down a bath plug hole simultaneously. Now you know what the collector looks like. And then at the engine end, I can only assume the black ring which is considerably larger than the poorly fitted inner pipe shows the size of the port. Yuck. And then the 4-1 section is welded together in a cross from the inside, so you've got this big blob of shit in the way too A mere 5 infinity hours with a die grinder and it could probably scrub up ok. I wouldnt say no to an extra hp or 3 if it were there. The next part of exhaust pipe is bad as well, looks like the ports where its just a pipe jammed in there and welded on the outside. So that could do with similar treatment. It's almost like this is a cheap shitty car? I also managed to get some Bilstein rear springs and a spare rear engine mount to fill with urethane before trying to swap it over. For the princely sum of 78 bucks. notbad.jpg Regarding the above about stopping engine rocking, I'll try the poly filled mounts first and go from there. An engine dampener isnt a bad idea 13 1 5 Quote Link to comment Share on other sites More sharing options...
Spencer Posted October 29, 2020 Share Posted October 29, 2020 Those engine dampeners work a treat, transfer a bunch of vibration but just whip it off when you go down the shops to get cakes. 1 1 1 Quote Link to comment Share on other sites More sharing options...
GARDRB Posted October 30, 2020 Share Posted October 30, 2020 Please 3d print engine mount inserts 2 Quote Link to comment Share on other sites More sharing options...
Roman Posted October 30, 2020 Author Share Posted October 30, 2020 Already jizzed up 2 of the engine mounts, will do gearbox side tomorrow. Big difference as these were crazy soft you could move them heaps by hand. Now much better  And im not sure what best practice is for a horrifically undersized manifold pipe with a shitty entry. But ive put a radius on it out to the full size of the port. Then blended the sharp edges. Will be interesting to see if it makes any difference. 9 Quote Link to comment Share on other sites More sharing options...
Truenotch Posted October 30, 2020 Share Posted October 30, 2020 It's like induction for exhausts!  Quote Link to comment Share on other sites More sharing options...
GARDRB Posted October 30, 2020 Share Posted October 30, 2020 16 minutes ago, Truenotch said: It's like induction for exhausts!  Outduction?  3 3 Quote Link to comment Share on other sites More sharing options...
Popular Post AllTorque Posted November 1, 2020 Popular Post Share Posted November 1, 2020 That turbo Vitz I mentioned appeared at work today.  “Golden Eagle” intake manifold. 19 2 Quote Link to comment Share on other sites More sharing options...
kws Posted November 1, 2020 Share Posted November 1, 2020 There is a turbo 2NZ IST on facebook currently. Really high mount turbo and interesting pipe runs, claims its a Greddy kit. https://www.facebook.com/marketplace/item/359378875400482/ 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Roman Posted November 2, 2020 Author Popular Post Share Posted November 2, 2020 Hah, sweet. I managed to get the exhaust manifold off to fit up the other one, and holy shit. It's even worse. (Standard echo one on the right) No attempt at equal length or anything like that haha. But could probably lop it off up high and put a turbo manfold flange on it! Anyway, the new one bolted in without a fuss, the exhaust bracket didnt fit but I expect a 1NZ one would have, or some spacers under the bolts on the block and it would fit. Sooooo when I had the super restricted intake it hated having cam timing advance because of high vacuum in the intake and presumably high-ish exhaust pressure. So when I freed up the intake, it started liking having some cam advance and could make useful use of overlap. So I figure if I'm reducing restriction in the exhaust it would like more overlap again. So an initial drive around and first thing I notice is that it's louder like the midrange is, for longer up in the rpm range. Not sure if a good or bad sign. I figure best to do the cam angle tests again and see what it now likes best. As per below: Yeah that's right, exchaust manifold deal with it So its now showing signs of what the Carina does, where its got a big flatspot type thing with a dip at 3500. I think this is probably a sign that there's a tuned length something something actually working now. Which might make sense as this new manifold is actually a decent attempt at an equal length 4-1 and the old one most certainly isnt. Still need to fix up AFR and a few other bits before any meaningful conclusions yet, but I think the fact it's wanting more cam advance is probably a good sign. These two graphs below arent quite apples for apples because they are a relative comparison to a baseline figure. But you can see the new weird dip behaviour. 14 1 Quote Link to comment Share on other sites More sharing options...
Roman Posted November 3, 2020 Author Share Posted November 3, 2020 Interesting results from the manifold swap. The fuel map didnt change one single bit! Like not for better for worse anywhere. Less than 1% which is margin of error. Which is interesting especially as I'd adjusted cam angle too. That aside, on virtual dyno it looks to have done nothing good at all: (red line is new mani) This reminds me that I havent adjusted to suit increased vehicle weight from new wheels, and the low pressures might be hurting the amount of power that makes it to the ground. Not that it's any good making power at the motor if it doesnt reach the road. I'll tidy up the entrance to the original manifold too, and then try do some A-B tests on the same day/weather/wheels/etc. I'll feel a bit better about this if it's a zero power change rather than a loss. It might be a case where backpressure is so high that a different manifold cant help as much as it would otherwise. But this also might be an interesting indication of something else too - maybe power loss from different wheels and tyres. I'm skeptical of that much of a power drop at the engine without it running any richer or any other indication in the ECU. If there's a few HP worth of a drop in power from soggy tyre pressure I'll have to weigh up whether a slightly better launch is worth losing some speed down the rest of the quarter. Slow gutless car has its own set of challenges haha. Also, I managed to get the front Bilstein springs too so I've got the full set now. Will hopefully be able to swap them over tomorrow. 7 Quote Link to comment Share on other sites More sharing options...
Spencer Posted November 3, 2020 Share Posted November 3, 2020 you need that 3" zaust to match. 6 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Roman Posted November 3, 2020 Author Popular Post Share Posted November 3, 2020 New comparison to that same older test but with tyres at 40psi all round again. Looks like that might have been the difference This is 30psi front from yesterday vs 40psi from today. Pretty amazing difference  EDIT: And Bilstein springs in. ride height hasnt changed toooo much but it's much nicer to drive. Some better shocks would help a whole bunch too, I'm sure. Might help keep a bit more weight over the front off the line. 12 Quote Link to comment Share on other sites More sharing options...
Popular Post Roman Posted November 7, 2020 Author Popular Post Share Posted November 7, 2020 On 14/10/2020 at 18:45, Hyperblade said: Set of TRD headers on TM for the low price of $1000... Claims 7.4kW(10ps) improvement...  https://www.trademe.co.nz/2814713140 Its pretty wild when a motor was released in the US and has a big market haha. This below is somehow $60 USD and probably no meaningful difference from TRD one: It's got the full sized pipes not the strangled down ones. It's hard to know how well it might go, because the only dyno stuff I can ever find for these cars is where people are using the garbage inlet manifold which kills it.https://www.ebay.com/itm/Stainless-Steel-4-1-Exhaust-Header-Manifold-for-04-06-Scion-xA-xB-BB-1-5-1NZ-FE/333425100376?hash=item4da1af4658:g:-Q4AAOSwwgRfWYP1 Ordered one, should be here before drags. If so I might make an attempt to sort rest of exhaust too. Can also get aliexpress conrods and stuff like that. Living the dream Also I've found out the Vitz RS model has better ratios and a 4.3 final drive. So I'll have to nab one of those at some point. But probably a while off yet and will get it ready with a prius motor. EDIT: Also printing some longer trumpets but I'm out of space, so try some tipped ones. 13 Quote Link to comment Share on other sites More sharing options...
h4nd Posted November 7, 2020 Share Posted November 7, 2020 1NZ hybrid version is only 6400RPM? https://en.wikipedia.org/wiki/Toyota_NZ_engine#1NZ-FE Will that throw a spanner in the works? 1 Quote Link to comment Share on other sites More sharing options...
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