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Re: Mark's 1G Winter Projects
A point is almost 9% difference, I doubt your injectors have that much variance, but maybe that combined with airflow differences per cylinder I suppose it could happen.
Maybe the widebands are reading wrong, it might be easier to swap what cylinders the widebands are on to see if the readings follow the sensor. Good luck this weekend! |
Re: Mark's 1G Winter Projects
So is your plan to try to tune it with the downpipe wideband then use single cylinder widebands for fine tuning?
Boost by speed should be sweet! |
Re: Mark's 1G Winter Projects
Woot! Good luck this weekend.
I wish they had classes for us 4 cyl. guys. |
Re: Mark's 1G Winter Projects
Progress is good! I hear ya on the cam/crank signals, I've been battling them on my car for quite awhile. Signal overlap combined with noise on the line gets frustrating. Mines still just a VR sensor setup running in a 24-1 configuration, what's your new setup?
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Re: Mark's 1G Winter Projects
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Re: Mark's 1G Winter Projects
there are settings in the AEM to compensate for timing drift with a hall effect sensor vs cam/crank pickup, the main issue is the factory 1g cam sensor has to deal with timing belt slop and the hall effect sensor with the speed of light being slow....
With the 2g dsm/evo cam/crank pick ups are mag pick ups, so nice square wave triggers. Using the kiggly crank trigger, square wave, and the dsm cam signal hall effect could be an issue with the EMS that needs be figured out. I know if you run the 1g hall effect you use a different timing and drift offset vs the 2g/evo cam and crank trigger setups. so it may be a thing of using the factory dsm cam trigger drift offset, and the 2g crank trigger offset values in the EMS. The only other thing I can think off is you said the timing numbers were spot on, I know with my car being waist spark and a black top cas, I put the timing light on the #4 cylinder and when we sync timing it does not go over 10deg(the timing #we set to look for) at idle or at 7,000+rpm I would estimate it jumps around at least 1deg, and I make sure it does not go over our target number. so at 10,000rpm and 45psi I know the number on the map is no more then indicated. That would be the lure of a solid, no mater what timing number, if the car could use 1 more deg, but not 1.25 you can make that change and be sure its correct. ~John |
Re: Mark's 1G Winter Projects
A little update, the car is awesome with the dog box! Shifting is the best, the only issue now is launching it with the tall first gear. The clutch is hard to figure out at this point, it took three passes to get some serious power to the ground off the line, then in second gear my rear end broke That pass was a 1.37 60'!!!!! No parts shot out but I can spin one tire at a time in the rear!
The first pass off of the trailer I tried to launch and just about killed the car, ran a 2.3 60 foot then ran the car out and hit 165MPH at the traps on a 10.3 second pass! It weighted 2420 on the BIR scale with full exhaust on it, carpet, door panels, passender seat and harness, with all of my safety gear in it. This winter paid off in the weight savings department. I have a rear end with me so I'm going to swap it out and try again tomorrow. Does anyone have any 4 bolt lsd rearends? I need to get another back up. |
Re: Mark's 1G Winter Projects
Nice! You rock man, good luck!
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Re: Mark's 1G Winter Projects
165 is moving.
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Awesome trap, hopefully you can pair that bad ass 60ft with that trap :) |
Re: Mark's 1G Winter Projects
Holy shit 165!? That quite the improvement. This thing has 8's in it for sure, Good luck!
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Re: Mark's 1G Winter Projects
weren't we going for like 158 last year?
Damn dude. Good luck, 1.37 60ft is no joke esp. in a manual DSM. |
Re: Mark's 1G Winter Projects
Nice work! I say it will be somewhere in high 8s with a successful pass.
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Re: Mark's 1G Winter Projects
What did the car weigh last year? 165 mph is moving in the quarter. Hope you get a clean pass out of it tomorrow.
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Re: Mark's 1G Winter Projects
I have 3 extra 3bolt rear ends, I swap the 4 bolt carrier in and use the 3 bolt ring/pinion.
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Re: Mark's 1G Winter Projects
Wow! Couple that killer 60' with that trap and you will put up some killer numbers! Good luck tomorrow.
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Re: Mark's 1G Winter Projects
fucking badass, I cant wait to see you get a clean pass
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Re: Mark's 1G Winter Projects
I was hoping to see the car run today but just saw it on the trailer. Did something break again?
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Re: Mark's 1G Winter Projects
UPdates?
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Re: Mark's 1G Winter Projects
I replaced the rear end, drove the car around and all was good. I noticed a cracked weld in my intercooler piping. More than likely due to my messed up launch the first two passes. The car bounced very hard. I could not find a tig welder on site, so I shut racing down for the weekend and enjoyed the event. :beer:
The car will be ready for the MAP event, easy fix! Like I said before in three passes I went faster, and cut my best 60 foot ever! It was a very successful weekend even though I didn't put it all together for an epic pass. I know it will happen soon!!! There was a crazy N/A powered (No nos) '68 pro-outlaw Camaro out there with a Fuel Injected Sonny's 892CI that ran a 6.44 at 210+! Wild car, I looked up the engine and it makes something like 2200HP - N/A. Also there were some crazy twin turbo firebirds and mustangs. I had a great weekend! |
Re: Mark's 1G Winter Projects
Good to hear!
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Re: Mark's 1G Winter Projects
So the N/A car basically had a ProStock engine from Sonny's. Aren't those north of $100K?
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Re: Mark's 1G Winter Projects
Jump on Sonny's sight, they now have a 1000+ CI motor, and from what I recall the bigger stuff from them cost 100k.
Great to hear in the progress._ |
Re: Mark's 1G Winter Projects
The car is 98% ready to go for the MAP event! I just need to replace a drive shaft U-joint that has some play in it. I found a backup 4-bolt rear end too. I'm in the market for more of them! I also have an extra big transfer case. I'm concerned the rear end breakage caused shock load to damage the T-case that's in the car.
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Re: Mark's 1G Winter Projects
Make sure you don't go cheap on them joints. The cheap stuff doesnt last long. What series joint and what shaft?
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Re: Mark's 1G Winter Projects
I don't think mark is the cheap parts type. :D
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Re: Mark's 1G Winter Projects
LMAO. that is the best post in this thread.
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Re: Mark's 1G Winter Projects
Had a good first pass at BIR in the heat!! More to come tomorrow.
http://i412.photobucket.com/albums/p...705_135636.jpg |
Re: Mark's 1G Winter Projects
Damn near 40mph in the back half!
That is getting in!! Wooooo!! |
Re: Mark's 1G Winter Projects
jeebus
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Re: Mark's 1G Winter Projects
Got damn!
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Re: Mark's 1G Winter Projects
Nice, goodluck today!
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Re: Mark's 1G Winter Projects
Goddamn dude nice!! Go fast!
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Re: Mark's 1G Winter Projects
Good luck today. Hope you break into the 8s
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Re: Mark's 1G Winter Projects
Agreed!! Holy hell man
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Re: Mark's 1G Winter Projects
Any vids???
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Re: Mark's 1G Winter Projects
Close to the elusive 8, the changes over winter made a big difference for sure.
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Re: Mark's 1G Winter Projects
The car is ready to go for the MAP PG2. I tweaked the tune, check out the timeframe at the bottom. The pull started at 29mph, and I had the car in full street trim with a passenger too.
http://i412.photobucket.com/albums/p...TuningPull.jpg |
Re: Mark's 1G Winter Projects
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Re: Mark's 1G Winter Projects
Here is the video from my 9.16 pass.
http://www.youtube.com/watch?v=_iYHVn9ERrI&hd=1 The tires were doing some work! I can see how rear shafts break. Once again the announcer that cannot pronounce Mitsubishi slammed the parachute before the pass, saying it was a "look and style item" but you only need it if you have a car that goes over 150. http://i412.photobucket.com/albums/p...allsTalon2.jpg |
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