threads
Page 22 of 28
Mazda Projects \  spy pics

spy pics

Mazda Projects
views 34026
replies 278
following 47
 
immortal1 (linn)   +1y
Thought I heard a big YEEEEEEEEEEE HAAAAAAAAAAAAaaaaaaaaaaaaaa!

That is great - definitely love the second video!!! Sounds pretty good - throttle response is a pretty snappy. Idle still seems a bit rough but then again some of that might depend on the cam overlap and how much vacuum your getting to the carbs at idle.

Eitherway - great news!!!!
plumbous blimp   +1y
that thing shakes like a paint mixer at idle, WICKED!

my dad's got a '69 nova and i've set out three goals for it:
-it has to shake like a paint mixer at idle
-it has to sound like death
-and it has to go like stink
nytrdr24   +1y

Lol, sounds like a kool nova, nothing like whop, whop, whop idle to make the sticker peck up lol haha!!
mine shaking is due to needing some tuning in the idle, my cam is a 262, so it should have a slight lope, but not quite paint mixer style shaking....in the last vid about 1/2 way thru (the engine had gotten to normal ot), the idle was nice & smooth but still slightly higher idle than I'd like...normal is 800 rpm, and I couldn't get it down and idling smoothly below 1k, it'll take some work, but I'll get it purring like a hungry cat before long!!
sosatheshark   +1y
the truck i seen it on was at 95 lowrider show ,it was a multy purple candy mazda ,everything was chromed out ,and was so sick,but nvever heard it run ,even at end of show ,i waited and waited ,but pushed onto trailer .im glad you got it running very impressive man
nytrdr24   +1y
You know Sosa, That may be the same one I remembered seein them on....pushed on a trailer...all sho & no go, that sux.

IMO, the measure of any great project, be it vehicle, bike, hotrod, or w/e, is a total of form & function. If it looks aesthetically pleasing, but doesn't run, what good is it? (kinda like a good looking woman that you can't get along with) but if it looks like it is going 100 while sitting still, and can back it up with performance, now that is when the bar is raised to the next notch....

I was able to breath a sigh of relief when it cranked & ran, you know how it is when you put so much into something & it doesn't work it makes you feel like poo, but when the plan comes together, it makes all the effort worth the while....
hocbj23   +1y
I hate to tell u this but my cam is same overlap as yours with the single Weber and stiffer springs and it wont idle below 1k revs either.Remember these are 4 cylinders which dont idle all that smooth anyway.If u put a cam with any sort of overlap,it just wont turn fast enough below 1k revs to keep from shaking.If u figure a way how to do it let me know.plus mine sounds wicked at about 1k with that cam.lol.bj
nytrdr24   +1y
Thx for the info/pointer BJ....As I mentioned in the reply to Linn, the vac advance is pulling perhaps too well at idle, and when I pulled it off, the engine wanted to stall unless I bumped the throttle....I was doing a little more research in one of the weber books last night, and it showed vac diagrams for specific spots in the carb
cyl bores & mani....in effect, from what I know it should pull very little to no vac at idle (x), yet pull vac under acceleration to w/e point the throttle levels out (be it mid throttle for steady speed, or at wot) so if it pulls x amount of vac at idle, then during acceleration, it would be x+, then at w/e point the throttle levels out, be it mid throttle, or wot, the vac should return to the steady x....with that in mind, the spot where I've tapped the mani on the carb mounting flange, according to the book it will pull max vac at idle with the throttle closed, and loose vac as the throttle is opened.....I did this as the only other way I was told that vac could be referenced on the carbs was to drill & tap a spot on one of the carbs, which with brand new carbs, I wasn't too thrilled at doing....the book did show a spot on the carb bores right behind the aux venturi that with the throttle closed, pulled little vac, and as the throttle opened, it would increase.....so I may have to figure a way to reference vac from that point....still not enthused about drilling into the carb.....so the R&D process continues.....
fakehawk   +1y
thread post photo


thread post photo
hocbj23   +1y
Or u could use one of those small brass fittings that fit into the vac hose or fitting to reduce the venturi size of the hole and see if that makes a difference as regards the amt of vac that it pulls and how it idles.Bwahahahahah.The totally mad Maz Scientist strikes again.bj.
zig   +1y
damn just checked out the vids that thing sounds pretty mean. very niiiiiice!!!!!!!!!!!!