
Everything posted by 240260280
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Datsun-240z Vs Fairlady-z432
@Gav240z, one of the earliest export Z's had same tail lights & front turn indicators for the Aus. market... apart from the LHD it is a car for you! Plus as rear spoiler. The red car in the brochure above does not seem to have any external mirrors? Usually there were wing mirrors in your market.
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HLS30-00304 Up For Auction on eBay
Lots of original parts in good form. It seems to have been blue from the factory. Here is its next in line HLS30-00305 which is also blue.
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240Z pulling to the right when braking
Usually this is due to caliper (on right side in your case). Sometimes the brake hose is at fault if it is old. Drive around without braking hard for 10 min then touch the wheel/hub/rotor with your hand on left and right sides. If the right is noticeably warmer/hotter than the left then that caliper is dragging and has an issue with the piston sticking.
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Datsun-240z Vs Fairlady-z432
Side Slip Test: http://www.240260280.com/History/Testing/Testing Japan/RollOver11Mb.mp4
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Lucky day for VIN 147 (HLS30-00147)
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triple Webers linkage ( or convert to throttle linkage ? )
https://www.classiczcars.com/forums/topic/60259-putting-su-carbs-on-l28-efi/
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For Jim and the gang in Alberta.. Stand up to watch!
We has an Arizona summer here in NS hot and dry. It was beautiful!
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Lucky day for VIN 147 (HLS30-00147)
Just sourced a red dot mirror for $40 ?
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Home Built Z 'Full video build'
Great pun!
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Weber selection and initial jet tuning
It is hard to tell. I have yet to see graphs of a/f for 40DCOE on an L28 so it may be the same case. From the graph below, a 40DCOE is adequate for 2.8 litre street use (with a 33mm choke). A 45DCOE is more suited for higher rpm racing with 36mm choke. Blodi currently has a 35mm.
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Weber selection and initial jet tuning
Thanks! I hear you. These problems do not seem to exist on 40DCOE but I have not looked in such detail as this thread has done on the 45DCOE.
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For Jim and the gang in Alberta.. Stand up to watch!
https://www.ctvnews.ca/video?clipId=1505549&playlistId=1.4120573&binId=1.810401&playlistPageNum=1&binPageNum=1
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You got Trump, May, Macron, et al... we have Trudeau
Ever wonder what a job application or university application looks like in Canada now that we have Trudeau as a leader...note the least important question at the bottom? Applicants are encouraged to complete this questionnaire as it informs the Employment Equity through Affirmative Action Policy. Employment Equity is a program designed to ensure that all job applicants and employees have a fair chance in the workplace. Employment equity also aims to correct historic underrepresentation in employment by Aboriginal people, persons with disabilities, racially visible persons, and women. You may self-identify in more than one category. For the purposes of this survey, aboriginal persons are people who identify as First Nations (Status, non-Status, Treaty), Metis, Inuit or North American Indian. Do you consider yourself to be an aboriginal person? Do you consider yourself to be Mi’kmaq? Racially visible persons For the purposes of this survey, racially visible persons are people (other than Aboriginal persons) who are non-white in colour and non-Caucasian in race, regardless of their place of birth or citizenship. Do you consider yourself to be a racially visible person? If yes, please indicate the group(s) below which best applies to you. Historically/indigenous Black Nova Scotian? Person of African (Black) heritage? East Asian (Chinese, Japanese, Korean, etc.)? South Asian (Indian, Pakistani, Bangladeshi, etc.)? South East Asian (Cambodian, Filipino, Thai, Vietnamese, etc.)? West Asian or Arab (Iranian, Lebanese, Afghan, etc.)? Latin, South or Central American? Persons with a disability For the purposes of this survey, persons with a disability are people who have a long term or recurring physical, sensory, mental, psychiatric or learning impairment and includes people whose functional limitations due to their impairment have been accommodated in their current job or workplace (e.g., by the use of technical aids, changes to equipment or other working arrangements) Do you consider yourself a person with a disability? Gender Do you self-identify as a woman? Sexual Orientation, Gender Identity and Expression Do you consider yourself to be a person who is lesbian, gay, bisexual, queer, two-spirited or a similar term? Do you consider yourself to be a person who is trans, transgender, transsexual, gender queer or a similar term? Are you a Canadian Citizen or Permanent Resident? btw this forum has flag icons ?️??️??️??️??️??️??️?
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Weber selection and initial jet tuning
@Chickenman Wow, you know your stuff!!! Any thoughts on the rich dip at the start of the main that seems ubiquitous on most 45DCOE applications? It is very difficult to address. Etube, jets, fuel level, acceleration circuit, etc barely make a dent in it. In the thread in the post #376 (two posts) above, the chap also tried different aux venturi and chokes with no luck. The carbs did not seem to be able to address it. The thread digressed and was never resolved but the racers threw out timing, exhaust reversion/exhaust geometry, resonance, and cam overlap as possible causes.
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Weber selection and initial jet tuning
Not just us with that 45DCOE rich dip: http://speedtalk.com/forum/viewtopic.php?t=45148
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Weber selection and initial jet tuning
More thoughts. The rich dip at 3500rpm could be a few non-carb things: 1. Valve, cylinder, and cam geometry with valve opening overlap allowing unburned fuel to escape into the exhaust causing a richer a/f ratio 2. A too short manifold with too large an opening preventing the air and fuel to mix well resulting in unburned fuel in the chamber. 3. Non-ideal air horn length. (longer may help with air velocity and low rpm resonance to help mix the air and fuel). For @Chickenman 's great flat curve, I wonder if a manifold/header bung was used as the sensor mount or if the Dyno-shop used a sensor in the tail pipe. Some A/F transient smoothing does occur in the passage to the tail pipe.
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Weber selection and initial jet tuning
Waiting for paint to dry so I decided to compare your last run against @Chickenman 's great Holley (page 13 post #316) and against the Australian video Motorbike EFI system (page 13 post #315)
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My Rockers seem to be a little off, or I'm off my Rocker(s)
The eroded patches seem to be more on the passenger side of the pad where the pressure is greatest and the lift starts.
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Weber selection and initial jet tuning
Great. No need to rush! Good luck with the dyno tests.
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All brains on deck - an unusual problem
I had deposits on my 77 EFI on plugs 3&4. It was due to cracks in head. The exhaust ports on 3&4 are the only two adjacent exhaust ports and heat builds there. Maybe exhaust valve lash is too tight on 3 & 4allowing reversion. Here is 3&4 exhibiting darker colour on cracked head (EFI):
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Weber selection and initial jet tuning
F19 165/175 Range of 1.7 points. Note: this is close (but better) than the elusive June 28, 2017 plot that suddenly went too rich on subsequent runs. It was never repeated. The configuration then was (F16 165/215).... so the F19 runs leaner than the F16 and needs a smaller air corrector.
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Weber selection and initial jet tuning
What you mean?
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Weber selection and initial jet tuning
Two coats on the dining room and Janet is happy! The only thing left to play with is to mess with the acceleration circuit as you see fit. You can try to quench that common lean gasp at the start. You know the parts and what they do so I'll leave it to you now that you are a Weber Experten! ?
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Weber selection and initial jet tuning
You know this thread started Oct 2016... two years of work, down time for the head problems, so many runs and Etube changes and we finally seem to have nailed the 45DCOE on larger L engines. Perseverance and finally a gift to the Z folks out there! F19 eTubes are the cat's meow! ?? Cheers and a big thanks for your hard work! YIPEEE YAAAAHOOOO
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Weber selection and initial jet tuning
WOW THAT LOOKS SWEET 11.5 to 13.5... RIGHT where it should be. 13.0 +/- 0.5 for most of the run then dropping to 12.5 at the high end.... WOW WOW WOW. I am painting inside right now. I'll try to plot tomorrow. Hold there. it looks great!