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Post by DJHancock on Apr 23, 2007 18:18:06 GMT -5
dont do image shack, they got that whole pop up thing when you click on the image, use photobucket.com, free and like a Montero Sport, it's the best.
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Post by cwic on Apr 24, 2007 13:37:58 GMT -5
well last night i took my graph from passen and plotted it over the most recent graph (something i shuda done a long time ago). it seems that the cams did not do a whole lot and the adjusting of the gears did even less. yeah i picked up 5 peak hp But at a loss of of 5fltbs. and i gained 5 and 5 up top not the 25 i thought before. now with the gears in i dont see any change and the only change i can feel is a sluggish low end which is what i was trying to get rid of by advancing them. the only thing i can hope is that the cams are the reason for the big torque jump on the juice otherwise i dont think the cams and gears were worth it in the end since they r so hard to tune without a lot of time and money. Clay
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Post by cwic on Apr 30, 2007 18:34:14 GMT -5
well i have changed my tune some what. i decided that next year i will break down and pay to have the front of my engine torn down to get to the cam gears. this is the prob i am facing in that u cannot get to the gears to tune them on a dyno. i was told that i may not see a diff with the gears and i went ahead with it anyways. hardheadedness got me into it so i will continue the trend and have them pull the covers, reassemble the engine with the gears exposed so i can tune it, then have it torn down again to reinstall the covers when it is finished. didnt have enough time to think of all that the last time around. I think i am also going to have a set of cut outs installed so it will all have to wait till i rebuild my bank. Clay
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Post by cwic on May 3, 2007 19:29:53 GMT -5
who was it on here that had a aftermarket downpipe installed ?
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Post by cwic on May 7, 2007 12:36:43 GMT -5
graph are up, thanks Jay. the last graph shows my graph from april of 06 and my most recent in may of 07 after the gears were supposed to be advanced. Clay
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Post by cwic on May 14, 2007 6:12:24 GMT -5
well i went to the track on sat and determined that i almost have to get the ecu reprogramed to get the most out of my cams. there was a stiff head wind so everyones times were slow.i barely beat my previous best even with the spray. i looked at my car chip when i got home and saw that during the runs i averaged 20 degrees of timing and a 80% engine load at full throttle. not very good so i will be calling jet performance today. Clay
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Post by cwic on Jul 20, 2007 20:08:48 GMT -5
well i went back to the track today. the perfect day to do so as the temp at the track was 72*. i ran a best time of 15.8 at 89.63 mph. i may go back when i get the ecu back in a coulpe weeks but i may wait till i get the headers installed. i should prob add that my truck track weight was 4660 w/ me in it. clay
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Post by cwic on Aug 16, 2007 6:26:25 GMT -5
new update... now with the ecu reprogramed and running on 93. i went to the dyno. took 10 pulls to lean it back out cause as i expected they made it pig rich (my mpg was terrible) when they adj the fuel curves. i would recomend that any one who does this get a fuel tuner or adj fuel pres regulator. anyways we finally got back to the correct fuel trim(~13:1) and managed to get the power back to where it was before. the only big diff was the temp. it was 98 w/15% humid on mon at the shop. the conditions before were 83 w/ 34% humid so the results were inconclusive. i will be going back in a few weeks when i get my headers put on (which the ecu is tuned for according to Jet) to see what it does then. Clay
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Post by lmtdfun on Aug 16, 2007 20:22:36 GMT -5
cwic,
sorry i wasn't able to get the reprogram done, yet- i haven't done much with the truck because i became swamped with work. But sounds like the repogram needed some important tweeking- so i guess it wouldn't be just a plug and play swap- how bad did you mpg dip- they told me i'd get better mileage- do you think the reprogram is worth it? i suppose that not a fair question because you have so many other mods you've done to your ride that i have not- but sounds like your going to have one badaasss MS when your through. actually reading your post is making me motivated to get back working on the MS. Also, looking forward to your updates
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Post by cwic on Aug 19, 2007 8:39:52 GMT -5
well the adjusted the fuel trims which might not be a prob on a lightly modded vehicle, but since i have been tuning mine with the fuel pres regulator and apexi it had a different outcome. i only got 260 miles with a full tank. with it tuned properly i get around 350-380.. still the jury is out as to weather or not its worth the jump to 93 octane, although i had to run on 89 to avoid knock before the reprogram was done. Clay
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Post by DSM on Sept 9, 2007 10:41:48 GMT -5
Clay, i would reccomend a datalogger.
if you're using an APEXI SAFC, tuning off counts of knock and timing advance will obtain you the most HP available.
basically put, you start to lean it out accross the board until you get the most timing advance without pre-ignition counts. I've tuned cars this way for years. You need to look into seeing if a 3000GT data logger will work on your montero sport and if not, find something that will allow you to log timing and knock that is accessible after each run.
You would make a dyno run, look at the log and see if you have any count of knock, then lean it out a little across the board and see what happens, do it in small incriments obviously, but once you've found knock, you're on the verge of real power. I suggest running it on 93 octane or better all the time, NEVER put anything lower in if you're tuning your car on 93, if it see's anything lower it will retard the timing and it will stay that way until the ECU is reset
hope some of that helps... if you already knew all that, sorry.
-Josh
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Post by cwic on Sept 10, 2007 0:12:14 GMT -5
prob is that the apexi cant get knock counts from this truck and i cant get to the gears to adjust at the dyno so i cant really tune it to perfection. it is tuned to 91 now according to jet but i need call then as it does not seen that the ignition timing adjust to load fast enough. at 3/4 throttle it keeps up fine but is slow to rise at full throtle i will be putting headers on soon and in think it will make a sig difference. when i do this i may get a wideband installed to tune it to the limit (13:1 off the spray 12:1 on). i can say that going from13.1:1 i gain some torque. since a dyno sniffer is usually .5-.7 richer there is a potential to pick up some power there but right now we are allowing the saftey factor and not tuning higher than 13:1 on the dyno sniffer. Clay
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Post by DSM on Sept 10, 2007 14:07:35 GMT -5
that's why i was saying get a logger, it logs the data, such as timing advance, knock, injector duty cycle, etc etc...
and it's viewable in real time.
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Post by cwic on Sept 11, 2007 9:09:41 GMT -5
prob should have instead of the car chip. i guess i could try to get 1 used but prob not till after i get the headers in. Clay
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Post by cwic on Dec 27, 2007 20:17:20 GMT -5
no new dyno yet still waiting on my headers. i did have a compression test done though cause they were going to change my plugs. i have had a random missfire since i got my cams so when i started getting it after my new plugs and wires were put in i didnt think anything of it till is started kicking #1 cylinder. plug was bad along with #4&6 these were due to broken wire in the boot. now i have to wait and see what magnecore wants to do to fix it. oh well the good news is my compression test came out perfect. each held 150psi. I also looked at my carchip to see if my timing has changed since it is running better and it seems to be advancing a couple points more now than before . Clay
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