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Type: Posts; User: porkbun

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  1. Replies
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    No actual dyno, All my results have been from my...

    No actual dyno, All my results have been from my butt dyno. BSR works and works alright but the opening on the sides is probably around the same size as one of the 4bbl butterflies. An SU butterfly...
  2. Thread: Idle tuning

    by porkbun
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    6
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    485

    I just learned it from tinkering around with my...

    I just learned it from tinkering around with my car. When I got the car it had a stock 390cfm but was also advanced as far as the distributor would go. When I went back to stock timing I noticed that...
  3. Thread: Idle tuning

    by porkbun
    Replies
    6
    Views
    485

    The problem with advancing the timing is that it...

    The problem with advancing the timing is that it requires a leaner mixture. If you have a perfectly good running car and just advance the timing it will run very rich. Retarding the timing will make...
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    318

    The way I understand it (which could be...

    The way I understand it (which could be completely wrong), total timing should be around 34 so initial timing depends on how much your vacuum and mechanical advance advance. Ive heard people with...
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    Are you using a regular 1850 or one of the...

    Are you using a regular 1850 or one of the holleys modified for blowthrough? I was pricing out the blowthroughs and it seems like my money would be better spent doing an L28et swap especially if the...
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    Bob Sharp Manifold was less than satisfactory....

    Bob Sharp Manifold was less than satisfactory. Great when daily driving but no oomph when flooring it. I think its pretty hard to cram 195cfm let alone 300cfm through this tiny opening
    72585
    ...
  7. Im hoping this is the ticket! My temporary pipes...

    Im hoping this is the ticket! My temporary pipes right now are thrush glasspacks and theres not really any rasp at all so ill try my hands at a different brand and double them up. Ill figure it all...
  8. Hmmm. That does sound pretty similar and maybe if...

    Hmmm. That does sound pretty similar and maybe if I double up those twice pipe glasspacks I can get that extra rasp. At higher rpms the sound was really harsh. Going to get my friend to upload...
  9. Yup I think its part 99996-E1045? I think the...

    Yup I think its part 99996-E1045? I think the header is salvageable as its pretty thick and the pipes probably could be saved but I feel like that woud cost more than getting them replaced.
    This is...
  10. I didnt install it, im guessing it was installed...

    I didnt install it, im guessing it was installed back in the day at some dealership along with the Racer Brown cam aka "Slalom camshaft" in the comp. catalog. I know 2" is probably too big and true...
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    Burping out of the carbs is usually timing and if...

    Burping out of the carbs is usually timing and if your timing is set properly then that means you are too lean. I dont know how much the "2.5 turns" applies to you since youre running a 2.9L stroker...
  12. Definitely going to hard to find if anyone...

    Definitely going to hard to find if anyone anywhere still makes them but the sound was like nothing youve ever heard and sounds completely different than every other car on the road. 2" is the...
  13. Do they still make glasspacks like this? (pics)

    Im replacing/refurbishing my Datsun Competition exhaust and im not sure I can replicate the exhaust sound. Old exhaust is rusting apart so I think its time to save what I can and replace what I dont...
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    2,305

    Sounds exactly like my 260Z with round tops when...

    Sounds exactly like my 260Z with round tops when the valve lash was out of whack. You want to have your car completely tuned up before you try and tune your carbs. If your valve lash isnt set...
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    2,982

    With those fuel economy numbers I think I need to...

    With those fuel economy numbers I think I need to get a blowthrough setup!

    Here's a post off of hybridz from a guy who went from fuel injection to a 4bbl and dyno'd both and compared them:...
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    Ahh yes the "other" brand which is sold by like 5...

    Ahh yes the "other" brand which is sold by like 5 different companies. Even had the little nub at the end of my throttle cable pop off. I love spending hours outside trying to rig something up in 30...
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    But that post actually got me thinking. With SUs...

    But that post actually got me thinking. With SUs the air goes in through the grille and is pulled in at a 90* angle where it enters the intake and is distributed amongst the cylinders. With a 4bbl...
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    LOL ...

    LOL


    https://www.youtube.com/watch?v=BcBuS9JhUhw
  19. Replies
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    Went off the deep end and have a 600cfm on the...

    Went off the deep end and have a 600cfm on the way. Already have an idea of how it will perform but I still want to test it out. Will post results when its all setup
  20. Replies
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    Dont tempt me! Im going to go back to SU's and...

    Dont tempt me! Im going to go back to SU's and try and get it setup using a throttle cable (also going to ask a guy I know who restores E-types if he has any 2" SUs). Ill probably go back to a 4bbl...
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    Its been a while since I updated! Regarding the...

    Its been a while since I updated! Regarding the manifold design, I emailed Dave @ AZC. The BSR has a lower divider, narrower runners, and those ribs before the #3 and #4 runners. Dave said "...The...
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    Ive seen some ads for NOS pumps for ~$90. Most...

    Ive seen some ads for NOS pumps for ~$90. Most annoying part is that the original pump was working fine but the diaphragm cracked while sitting in the back of my car. Maybe pouring some oil inside...
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    Reviving this old thread to add some information...

    Reviving this old thread to add some information to help those who are also looking to replace their mechanical pump. I pulled my Kyosan Denki pump in August with a Carter M60107. I bought it because...
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    Took some shots of the plugs today at 17 initial...

    Took some shots of the plugs today at 17 initial timing. I just cleaned up both electrodes before I reinstalled them last time. The white/grey looking stuff is anti-seize
    (especially on #6!) that...
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    Zed Head, your post caused me to look up how my...

    Zed Head, your post caused me to look up how my distributor actually works :). I read a couple places that advancing the timing a bit more could get me better fuel economy around town but I think it...
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