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Post by Green92gsx on Mar 16, 2007 15:41:57 GMT -5
I don't know Randy,I think school is making you think way to much. ;D I think the choice of coil has alot to do with it. Here's a snippet of a conversion with my brother about it because I don't like writing novels. Unlike him:
It is true that most OEM setups COP coils (and the 300M) are designed to be run in sequential spark and not wasted spark (firing every 720 instead of every 360). However, that does not mean that these coils can't be ran in waste spark though. In fact, they are still run in waste spark mode even with the AEM for DSM's. The AEM by itself doesn't have enough coil outputs to do sequential spark. That is why they are wired in series, it is the correct way to wire them for a waste spark setup. Wiring them this way effectively makes them perform the same way the stock coil setup works. The AEM can still do individual cylinder tuning like a sequential setup though, even though it is wired in waste spark. It also allows you to adjust dwell time to match the coil. Anyway, the "issues" there might be with COP setups and the stock ecu is a possible mismatch of dwell time and overloading the stock power transistor. The stock ECU dwell (charge time) might be too long for what the coils are designed for, causing them to possibly be overcharged, overheated and burn up(fail). From what I've read, wiring these coils in series helps offset the difference in dwell time while also reducing the current the power transistor has to sink from the coils preventing the power transistor from failing. How do you think Buschur and everyone makes these kits with the same coils and sells them to people to use with the stock DSM ecu? With a CDI like the MSD, any dwell time mismatch doesn't matter because of how the CDI works. It fires the coils with it's own very short dwell duration high voltage. This helps prolong the life of the coils while also preventing problems with misfires at high boost. The sad fact is most COP coils(especially motorcycle stick coils) aren't even as good as stock coils. The coils we used are comparable to stock from what I've read when wired in series. The CDI also eliminates any spark energy short comings a COP coil might have. Really the main advantage of COP is eliminating the problematic plug wires for us, along with packaging advantages I guess. Luke-
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Post by Green92gsx on Apr 22, 2007 8:03:42 GMT -5
Well I made some progress yesterday with the car. Everything came together nicely. I had to reuse my old dump tube for the wastegate and some scraps I found in the garage. I ran all over Kalamazoo and nobody had 1" 1/2 od piping that wasn't galvanized. For the first time ever I heard my brother say: " Man, I'm kinda scared now, your gonna' break some shit for sure" ;D I want to tint the windows this year,does anyone have a hookup on a good installer? I would try it myself but I know I would mess the back window up.
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Post by wishihadatalon on Apr 22, 2007 15:10:59 GMT -5
Woot this is exciting
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Post by Green92gsx on May 9, 2007 20:04:18 GMT -5
Update:
Slacking severely. The engine bay is done and everything is installed. I need to finish wiring the dash and fire it up. The only thing that sucks is I have no room for a 4"in intake pipe at all. That SP cover tucks back behind the lower water pipe further than I thought it would. I can though just squeeze a 4" to 3"in coupler to use my 3" intake pipe with the 2g mass. I know it's far from optimal having a reduction like that in front of the turbo but it's just short term till I know the car runs well with my 2g mass/ race gas tune I have always ran. I'll make a few passes like that to see were I'm at with just the turbo swap. Then I'll switch over to the speed density program that I'll use with the e- prom/ecu.
My goal/mission is to race Fri night the 18th. I'll post some vids dialing the car in with the in car camera soon!
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Post by autox4fun on May 9, 2007 20:35:53 GMT -5
I was able to make fit... it took a crap load of cut and weld, cut and weld...You can DO IT R
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Post by Green92gsx on May 10, 2007 19:16:46 GMT -5
I thought you have the FP 4" cast intake Randy? I'll end up just running a screen over the inlet with the speed density. Anyone ever seen a modified lower hose that was re-routed? I can see how it can be done but man I don't want to start anything else that I'll get into too deep at the moment. I'm moving into and finishing the top half of my house at the end of the month so June should free up alot more free time to play. Paul and Dan we should meet up for some highway pulls! It would make for some good dsm footage. Three wide !
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Post by autox4fun on May 12, 2007 7:12:22 GMT -5
You have a pm!
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Post by Green92gsx on May 18, 2007 20:46:15 GMT -5
Well it's all buttoned up and running vary well. The car is a whole new animal now. The first pull I did pegged 25psi and scared the hell out of me, I got right out of it. Got the logger working and Luke and I did two 2-3rd gear pulls at 20 psi and man the car hauls ass! Feels way faster than my old 18g at 30 psi. This is at 12.5 afr with only 13* of timing. I'm not used to the new power band. I get full boost at just under 5000K so I'm pretty happy with it. I hope it'll stay together so I can start enjoying it again and make a bunch of passes this summer.
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Post by wishihadatalon on May 19, 2007 6:09:39 GMT -5
Are you on race gas running that afr? I can't wait to see it run
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Post by Green92gsx on May 19, 2007 13:52:13 GMT -5
I run cam2 race gas. I think it's only 110oct. I need to try some c16 or some vp import. The funny part is that it hauled ass even with my 2 1/2 in press bent bottle neck exhaust after my 3'in race pipe for street driving. I want to make it to a awd dyno so I can dial in my VE tables when I convert to speed density with a wideband. Right now I'm just altering the afr with the stock fuel map as a base. As of right know it's still: Stock head,cams, intake manifold,and 2g mass.
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Post by Green92gsx on May 21, 2007 21:37:36 GMT -5
Well my retaired pops been so damn bored lately,intead of going to the "Bluechip" I gave him a task for the car. Tint my car! He was in the glass biz for like 15 years. He did a better job than I would have.
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Post by dizzum_D on May 21, 2007 21:40:21 GMT -5
Pics don't work bud.
But hey guess this. I got tint on my car about 2 months ago. 5% on the back 3, and 20% on the front 2. I got busted last tuesday for a fix it ticket on it. Today, I pulled out the non tinted windows in the parts car laser and put them in the GSX. I'm going to show a cop tomorrow and then going to put my tinted windows back in.
It was actually really easy to do it too.
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Post by Green92gsx on May 21, 2007 21:55:20 GMT -5
There showing just fine for me?! I bought the non-adhesive kind just in case of that situation. I can just rip the tint off when/if necessary. Really man I never drive my car on the street anyway. It's just a sun,heat blocker for the track. I thought Michigan law stated that tint is ok but the front windows have to be less than 10%. Dude, If I got pulled over I'd get alot more fix it tickets other than just the windows.
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Post by dizzum_D on May 21, 2007 22:02:04 GMT -5
No the pics dont' work for me? All I see is [image]
Actually the law is you can have any tint you want in the back windows, but only are allowed a 4" strip on the top of the windshield and front 2 windows in any %. Anything lower than 4" down is illegal in any %.
I get pulled over quite a bit, and my car is no where near legal. But MI cops don't give a shit about not having a cat an poluting the air, they don't even car about it being loud, b/c half the shit around here the mufflers are rusted off so they don't car, but OMG they will bust your ass in 2 seconds if you got your windows tinted.
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Post by Green92gsx on Jun 1, 2007 19:48:12 GMT -5
Hey guys I wanted to give a quick update with the car. I made the first shakedown passes tonight at Martin. With the car exactly setup from the 18g besides the turbo swap here are my results. First pass, 22psi netted me 126mph with 98 at the 1/8. That was with a total bog at the light. 11.80 et with some knock that started to show up in fourth gear with about 7 counts. Second pass at 26 psi netted 127mph with 99 at the 1/8 with some major knock about a 20 count with timing threw the traps at only 10* Third pass I tried to crank up the boost to around 34 psi but only reached 28 psi. I added 8% fuel to combat the knock but to no avail. Trapped 128 with 20 counts of knock again at 10* of timing. I ran a 11.4 with a sorry launch again even after a quick burnout.
I looked at the logs and the reason for all the knock I think is from overrunning the 2g mass. With double htz logged I was pegging around 2900hz. My pulse width started getting flaky at the same time. Either that or I have some shitty gas. I've never had a problem with knock with my car. I could lean it out till I melted the plugs before showing any knock.
Still pretty damn happy though. With just the turbo swap a gained 5 mph on the big end. I'm going to switch over to the speed density,get some cams ordered,and get some better gas for sure. C16 or some VP import. Luke keeps bugging me to run meth but I don't even want to get into that yet. I better get my shit together or Dan's going to blow my ass away. ;D
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