Using JZ's igniter in 7M-GTE (+)
- Thread starter Mr. Y
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I have owned msd and crane ignition systems and both were reliable, even in a high vibration off-road environment. I've seen poorly installed/wired MSD units fail. The HKS unit does not need any adaptors because it just uses transistors to switch capacitors to the coil primary wires to increase the dwell time. The MSD unit has it's own power supply and just triggers off of the stock ignitor but it makes a far higher voltage output. Also, multiple sparks at low rpm and longer duration spark at high rpm. I can understand how you may need several adaptors for the MSD because the adaptor just simulates a coil, but they did not mention it.
Is all this necessary? Probably not. But if that is the case then just about any mod on any of our Supras could be called unnecessary. All I know is that I popped my hood the other day and another 7m-gte Supra owner saw my engine with the 1j coils and said "what engine is that?" and I got a big smile on my face.
I have also been working on a circuit design to run a 1jz or 2jz ignitor on a 7m and another one to run two 7m ignitors with 6 individual coils. Both would be much less money then MSD or HKS.
Is all this necessary? Probably not. But if that is the case then just about any mod on any of our Supras could be called unnecessary. All I know is that I popped my hood the other day and another 7m-gte Supra owner saw my engine with the 1j coils and said "what engine is that?" and I got a big smile on my face.
I have also been working on a circuit design to run a 1jz or 2jz ignitor on a 7m and another one to run two 7m ignitors with 6 individual coils. Both would be much less money then MSD or HKS.
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I'm pretty sure NASCAR teams know how to hook up an MSD properly, even if they are rednecks. :icon_razz
I'm not trying to judge what you are doing bigaaron, sorry if any of my posts came off like that. Modifying your car is all about making it how you want it to be.
I'm not trying to judge what you are doing bigaaron, sorry if any of my posts came off like that. Modifying your car is all about making it how you want it to be.
or just making something work that no one has ever done before.
Like my brothers HICAS swap....some people thought it was useless and garbage...really people just didnt know how on earth it worked and didnt realize what real benefits it had if it was upgraded.......
I see the same coming out of this mod.
I need to get some 1jz coils now. Anyone know where I can find them?
-Jonathan
Like my brothers HICAS swap....some people thought it was useless and garbage...really people just didnt know how on earth it worked and didnt realize what real benefits it had if it was upgraded.......
I see the same coming out of this mod.
I need to get some 1jz coils now. Anyone know where I can find them?
-Jonathan
about $1XX per coil I am guessing NEW from Toyota....Ron Rameriez used the 2jz coils...they hit the spark plug perfectly and fit perfectly in the 7m head. I believe the 2jz and 1jz are the SAME coil packs.
I will see if that is right...Jay Marks Toyota may have that answer.
-Jonathan
I will see if that is right...Jay Marks Toyota may have that answer.
-Jonathan
I have an extra set available, let me see if this works out and I can maybe sell a set. BTW, they don't have any mounting provisions, I welded studs to the center cover on the head and used a nut in the center of each coilpack. My beta test harness is halfway done already. :naughty:
I'd rather find a set then just one, makes everything easier to me. You can have it Happy now Siman?
Happy now Siman?
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/\ that sentence made no sense :icon_conf LOL
never mind, there wasnt punctuation between one and makes. :biglaugh:
never mind, there wasnt punctuation between one and makes. :biglaugh:
No problem bro. You have been very helpfull. Maybe it broke because the car only turned left and the right side of the MSD unit overheated? hehe
I guess deep down am a little bit of a cheapass but I like to find inexpensive ways to tackle expensive projects by using some inginuity. I have more time then money :icon_bigg
I guess deep down am a little bit of a cheapass but I like to find inexpensive ways to tackle expensive projects by using some inginuity. I have more time then money :icon_bigg
chevyeater said:
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thats the best way to figure out things.....cheap and with your brain.
Some of the best invetions have come from someone with a cheap and technical mindset. :icon_razz
Some of the best invetions have come from someone with a cheap and technical mindset. :icon_razz
Yeah I am eager to see how it runs. can you also give us a pic of the setup in your engine bay. Pretty please!
Well.... I wish I had better news to report. It runs, but barely. I am going to check all the inputs and outputs with my oscilliscope to see where the problem lies. I think I might have to have to build a buffer circuit for the ecu outputs iga, igb and igt in order to run the two ignitors in parallel.
So if that doesn't work are u going to build a circuit to run a 1jz/2jz ignitors? Probably have better luck running one of those. Sorry to hear it not going to well but still keep me and Siman posted.
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