kpr Posted August 25, 2013 Author Share Posted August 25, 2013 Some more cam/tuning stuff if anyone is interested. But first, I had to fix some stuff before i could get back to tuning. everything is falling apart around this 4age as usual. also swapped one of the master cylinders to a smaller bore. now running 5/8 front and rear, feels way better than the 3/4, 5/8 combo. since i dont have a dyno handy, this is how im dialing in the cams. got afr ballpark after a few runs, so advanced the inlet cam. using the adjust cam timing, then turn the engine over very slowly by hand and hope it doesn't stop method. (i cant be assed with all the work to find out piston to valve clearances) dialed in the max the cam gear would advance without skipping a tooth. about 22degrees advance. no contact. backed it off to10 degrees advance. took it for a run, went lean to around 7000rpm then matched from there onward. generally means power gain once afr corrected. log, pink line is 10degree advance. pics are big so will leave as links http://garage4ag.files.wordpress.com/2013/08/kp-10-deg-advance.jpg after correcting afr; confirmed power gain by doing another run on same bit of road, then overlaying the rpm graphs. 10dgrees advance plot overtakes the base setup. mean. doesn't feel much better below 5k though. has lost quite a bit over stock cams, was hoping it wouldn't loose this much. but still have igntion timing set low, so should pick up a bit. will try another 5degrees advance on the inlet tomorrow, and maybe retard the exhaust cam. also its starting to sound like a 4k with a 3/4 race cam/ fucked points again, at idle, choice fuel map from the stock cams http://garage4ag.files.wordpress.com/2013/08/kp-stock-cams.jpg compared to the 280's, can see how hard it comes on just by looking at the fuel map. fuel map roughly follows the torque curve. can see peak torque has shifted near 1000rpm up the revs. http://garage4ag.files.wordpress.com/2013/08/kp-10-deg-advance-fuel.jpg some longer trumpets on the itb's, would probably smoothen it out and give some back below 5k. Edit: yuck new page and no pictures. heres one of me hardparking at hampton downs 6 Quote Link to comment Share on other sites More sharing options...
kpr Posted August 29, 2013 Author Share Posted August 29, 2013 Just to update the cam situation. I retarded the exhaust cam 10degrees. along with the inlet still advanced 10 degree. Got roughly half the gain, on top of what the inlet gave. More mid range and same deal as inlet, doesn't seem to have lost any up top. Usually would lose power in the last useable 500-1000rpm, advancing inlet or retarding the exhaust, but don't think its pulling enough rev's to get to this point. Would likely rev to 9500 without falling over too much. All sorts of bad stuff is spose to happen over 9000rpm on these engines, without robbing a bank. so have it limited to this bottom ends, rape proven 8800rpm locked the cam timing in, as needed to get a good tune on it for this weekend. corrected afr and dialed the ignition timing back in. pretty happy how it goes! seem to have gained back quite a bit down low messing with the cam timing. pulls ok from 4000-4500, is on song by 5000rpm and chases down the limiter from there on. its pretty useless below 4000rpm, but what 4age isn't. as for actual power it was using 40% of 540cc injectors, now its using 50%, you do the math / half of that is probably coming out the exhaust! Taking it to pukekohe on saturday, see if i can break it, again.. 6 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted August 31, 2013 Author Popular Post Share Posted August 31, 2013 click hi res 10 Quote Link to comment Share on other sites More sharing options...
kpr Posted September 2, 2013 Author Share Posted September 2, 2013 Brother caught some 4age action, 4x 4age action. crank up the sound its a bit quiet for some reason 9 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted September 10, 2013 Author Popular Post Share Posted September 10, 2013 Been giving the engine bay a bit of a tidy up. need some poser spec COP's 17 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted September 12, 2013 Author Popular Post Share Posted September 12, 2013 got a camera mount, to try out some in car next time on track. its a bit crappy, or car just vibrates too much. i captured some noise testing it, none the less. 2nd part is the stock tacho giving up at 8k. can't even clock it! try full screen 10 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted September 16, 2013 Author Popular Post Share Posted September 16, 2013 Dear markku; Here is your in car, as requested 27 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted September 18, 2013 Author Popular Post Share Posted September 18, 2013 Close your eyes, hope for the best. 17 Quote Link to comment Share on other sites More sharing options...
kpr Posted November 10, 2013 Author Share Posted November 10, 2013 Got back on the angle grinder today. Making some aftermarket ae86 diff links fit, so i can align the diff better. The top ones were way too short. but that was ok, as i didn't want to run rose joints both ends. Brought the longest bolts i could get and cut some stuff up leaving the left hand thread rosejoint in place, they will still work how they should. factory arms are just butt welded, but added some gussets, to make sure they are extra strong. banana shape on one side is to clear diff at full travel 3 more to go. 8 Quote Link to comment Share on other sites More sharing options...
kpr Posted November 24, 2013 Author Share Posted November 24, 2013 Bad day yesterday. Even worse for the starlet. Went to a drift day at hampton downs. Drove shit, collected a concrete wall, initiating dift on the coned out manji section. most anoying part is its something ive a thousand times before. spent the next half hour or so beating it in the pits, to get it driveable again. managed to get back out and stopped driving like a pussy. started doing ok towards the end. was chasing another kp around for awhile which was pretty choice. if someone can come rark me up before each drift day, that would be nice. need to be angery to drive this thing. missed the best runs toward the end, due to sd card being full! but got a few ok incars; bung eye/ beater if anyone has any front end kp parts, let me know! hopfully i can peice it together good enough, to make it to the os drag day. its pretty beaten up but there isnt any chassis rail damage 6 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted December 18, 2013 Author Popular Post Share Posted December 18, 2013 This engine setup seems to be a success. Haven't got around to it and cant really be assed, taking it back to the dyno. But for comparison; The old big cam setup with the 193-d kelford's and shit/no headwork and v2 itb setup, it was doing 160km trap speeds at meremere, with best et of 14.0. Current setup with the better v3 inlet manifold, blacktop throttles. diy porting and smaller 193-b cams. it done a string of 162km traps at the hot hot os drag day. more power with smaller cams, plus it pulls from lower rev's as good as a 4age can! Only drama on the day, was not being able to do any decent burnouts. with the willwood pedal box, have dialed in as much usable rear brake bias as possible which ain't no good for b-owts. well only clutch burnouts. used to do sweet skids with the factory master, as the back brakes didnt really work at all! Pretty much ran 14.1 -14.3 all day. Went out on what i though was my last run of the day. done a 14.04! felt robbed as a 13 has eluded me for so long. thought track was shutdown, so parked up. Seen clint hoon past so chased him to the start line. managed to find some grip and pulled a 13.87@162. stoked. was expecting cletus to go flying passed, but was just rewarded with a valiant doing 11's half way down track in my rear veiw! Awesome end to the day. 25 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted January 4, 2014 Author Popular Post Share Posted January 4, 2014 got some more of these spent hours trying to kill the old boys bench grinder polishing them. then some antique gold 27 Quote Link to comment Share on other sites More sharing options...
kpr Posted January 12, 2014 Author Share Posted January 12, 2014 Finished doing the adjustable 4 link. bottom links were a bit long, as they are ae86 links. but they were threaded far enough down the tube, to cut 15mm off each end. same deal as top links, rose joint one end urethane the other. Took it down to Mackaz and had a burn on the wheel alignment machine. ended up with 1.4mm toe in per side and about 1.3 deg camber. Front hadn't really changed after hitting the wall at Hampton. It's fairly obvious that its been in a accident, at some stage in its life.(like most kp's) Was hoping it may have bent the chassis back to where is spose to be! managed to even up the castor to around 4.5 degrees a side. but need to mod the lower arm mounting point on the left, to get the camber around 2 deg per side. Last time out at Pukekohe, still had drive shaft issues, after correcting the angles as best as possible. and spending $$$ on the single piece shaft, rebalance, new uni etc. Kinda like my legs attached to my body, so 2 piece time. Brother had some hilux stuff stashed away, so grabbed that and introduced it to my drop saw and angle grinder. ^ Top is the one off the car. middle hilux, was going to use the ae86 yoke of the bottom one rather than cutting up the one i just spend a wad of cash on, but.. The corona wag (left) one is far superior and has clip in uni Hilux hanger bearing didn't quite fit in the kp tunnel. probably should have put some effort into finding a hanger that would fit, but needed to do some cutting and welding anyway. got to cut out the molestered bit at the bottom of the notch, weld in some tube for exhaust tunnel. was previously clearanced with a sledge hammer! 8 Quote Link to comment Share on other sites More sharing options...
kpr Posted January 19, 2014 Author Share Posted January 19, 2014 Got the front half pretty much done. Made these hanger bearing mounts, to push through from inside the car. rather than trying to weld under the car. like so Still sucked to weld. 3mm to tinfoil with tig isn't much fun. probably would have mig'd it, if had it here Was planing on making the whole drive shaft before mounting the hanger. but need to track down about 350mm of drive shaft tube, to finish the rear section 7 Quote Link to comment Share on other sites More sharing options...
kpr Posted February 1, 2014 Author Share Posted February 1, 2014 Got shaft dialed in pretty much spot on, after messing around with it for ages. but front half of the rear shaft pulled a bit when i done the final weld. wasnt too happy with it as was being a picky cunt, still well within acceptable runout though. got it ballanced this week. guy said it was all good. So must make me a recognised driveshaft manufacturer?! Cut a hole in the floor for the exhaust. only steel i had was some 3" exhaust tube. cut and opened it out to shape of said hole. worked out pretty good. looks a little like this from below. Just need to finish welding it in. then slam it all together. 6 Quote Link to comment Share on other sites More sharing options...
kpr Posted February 2, 2014 Author Share Posted February 2, 2014 Finished this today. All good on a mild speed test run. need to get out on the track. Whos keen for a pukekohe open day!? 6 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted June 22, 2014 Author Popular Post Share Posted June 22, 2014 time to try get this back on the road. and maybe the track. sump has taken a few hits, so made up a sump guard. its fairly light weight so may get bent up, but will at least take some direct punishment away from the sump. doubles as a brace. well that's what i'm telling myself. so can deal with adding weight. hopefully wof man is kind, after all the holes i cut in the floor. 10 Quote Link to comment Share on other sites More sharing options...
kpr Posted September 16, 2014 Author Share Posted September 16, 2014 Haven't done anything to this other than drive it, managed to get it legal again awhile back. Drove 2 1/2 hours each way to a drift day on Sunday. No drama's! Exhaust wore out, but thats normal. I was a bit rusty to start with since haven't done any drifting for close to a year. but kept it off the walls this time! Managed to win the mini comp, (track was kinda bias towards my car!) taking home a radiator, which was pretty choice end to the day. brother got a couple or short vids. will put them up later 5 Quote Link to comment Share on other sites More sharing options...
Popular Post kpr Posted September 16, 2014 Author Popular Post Share Posted September 16, 2014 The speed and grip between wet and dry in this thing, always seems a bit silly to me. 12 Quote Link to comment Share on other sites More sharing options...
kpr Posted October 11, 2014 Author Share Posted October 11, 2014 Nothing happening here, but bit of a pic dump from the above day 7 Quote Link to comment Share on other sites More sharing options...
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