Ignition breakup and alternate IGN-1A mounting locations
#1
Ignition breakup and alternate IGN-1A mounting locations
I'm having issues with ignition breakup & water injection. When the water is on, I can only get to about 6.5K in 3rd, for example, until it just kinda hangs there. If I turn the water off, it's fine.
I'm running stock coils (original, 26-year-old) with about 35K miles on them, and a Twin Power.
I've read that this can happen with water, especially with a richer mixture, and that higher boost also exacerbates the problem. My boost isn't very high yet, but it will be soon.
So, I'm looking into IGN-1As. I see IRP and SBG both make PnP kits that mount where cruise control is in the engine bay. That's fine, except I just finished this little fuel pump/intercooler fan speed switch that I'm rather fond of.
Are there any other common mounting locations for these coils? I've seen them under the plenum but that's not an option for me as it's a CA car and needs to retain most smog things to avoid making my life any harder at testing time.
I'm running stock coils (original, 26-year-old) with about 35K miles on them, and a Twin Power.
I've read that this can happen with water, especially with a richer mixture, and that higher boost also exacerbates the problem. My boost isn't very high yet, but it will be soon.
So, I'm looking into IGN-1As. I see IRP and SBG both make PnP kits that mount where cruise control is in the engine bay. That's fine, except I just finished this little fuel pump/intercooler fan speed switch that I'm rather fond of.
Are there any other common mounting locations for these coils? I've seen them under the plenum but that's not an option for me as it's a CA car and needs to retain most smog things to avoid making my life any harder at testing time.
#2
Non Runner
iTrader: (3)
I recently bought Sakebomb's chassis leg mounting kit for the AEM coils, although looking at my chassis leg I reckon an AC pipe might be in the way of the mount. I'll snap a pic of it mounted when it arrives.
Not sure how much space you guys have down there as you'll also have the steering column passing up that side being LHD.
Not sure how much space you guys have down there as you'll also have the steering column passing up that side being LHD.
#5
Eats, Sleeps, Dreams Rotary
iTrader: (17)
Some people have had great results with the HKS twin power on NEW oem coils, some over 500 whp.
I used Sakebomb's RHD frame mount kit on my LHD. It's a tight fit but it does fit and clears the steering column and everything just fine, just have to be mindful of the wiring routing to make sure it doesn't rub on anything. I used to have the cruise mount but I wanted to have my cruise control back.
You can also use DriftinJim custom kit he sells on ebay, also offers cruise or frame mount. I got this kit too but ended up using SB's instead, it's FS to anyone interested.
Some other vendors offer frame mounts. I went with Sakebomb because I've used their products before and their service is great.
Last edited by neit_jnf; 12-03-20 at 08:51 AM.
#6
Couldn't stay away
iTrader: (5)
Some people have had great results with the HKS twin power on NEW oem coils, some over 500 whp.
I used Sakebomb's RHD frame mount kit on my LHD. It's a tight fit but it does fit and clears the steering column and everything just fine, just have to be mindful of the wiring routing to make sure it doesn't rub on anything. I used to have the cruise mount but I wanted to have my cruise control back.
You can also use DriftinJim custom kit he sells on ebay, also offers cruise or frame mount. I got this kit too but ended up using SB's instead, it's FS to anyone interested.
Some other vendors offer frame mounts. I went with Sakebomb because I've used their products before and their service is great.
I used Sakebomb's RHD frame mount kit on my LHD. It's a tight fit but it does fit and clears the steering column and everything just fine, just have to be mindful of the wiring routing to make sure it doesn't rub on anything. I used to have the cruise mount but I wanted to have my cruise control back.
You can also use DriftinJim custom kit he sells on ebay, also offers cruise or frame mount. I got this kit too but ended up using SB's instead, it's FS to anyone interested.
Some other vendors offer frame mounts. I went with Sakebomb because I've used their products before and their service is great.
I can certainly appreciate that moment when you've made some bespoke one off part then find out it's not going to work the way you wanted it to. I like to tig weld aluminum parts for myself and have done this too many times. Don't trip over that pitfall. Those switches can easily be relocated, that is a good spot to put the coils.
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#7
I'm really torn between trying with some new OEM coils + my Twin Power, or just jumping on a Driftinjim frame rail mount kit with some IGN-1As. It's hard to see exactly how that mount fits in the photos / YT video:
@F1blueRx7 is placement reasonable? Does it interfere with anything else such as replacing plugs?
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#8
Sponsor
iTrader: (41)
The issue with the twinpower is that it still reuses the factory coils, wires, and ignition harness. All of these together would cost more than a good ign1a kit. Additionally the twinpower is discontinued. If it fails (and they occasionally do) It may be difficult to source a replacement. Switching ignition systems requires a retune to remain safe. My coil kit can be mounted in either the factory cruise control location or in place of the ac compressor if you delete the compressor. Correct grounding with these coils is critical and unfortunately many other offerings on the market are not properly grounded. They need both a battery ground and a separate ground for each rotor housing for optimal function. Unfortunately most of the other kits share grounds for cost/simplicity reasons or just for a lack of understanding. It is also a direct plug and play with no depinning of the factory ignitor connector required. https://www.irperformance.com/produc...nition-system/
Last edited by IRPerformance; 12-03-20 at 02:52 PM.
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F1blueRx7 (12-03-20)
#9
As the owner of an SBG kit that's now sitting on the shelf, +1 to the Driftinjim kit. I could sling around words like "Overpriced" "Missing critical instructions that will fry your coils if you re-located your battery" "Insufficient grounding paths to the battery" etc, but there are plenty of other posts on the forum that cover those topics in depth with pictures of melted coils. The bracket is the only part of the kit I still have on the car, very expensive bracket. If your future plans ever include an ECU that uses it's own engine harness you won't use any of the harness in their kit either. Just items to consider.
I can certainly appreciate that moment when you've made some bespoke one off part then find out it's not going to work the way you wanted it to. I like to tig weld aluminum parts for myself and have done this too many times. Don't trip over that pitfall. Those switches can easily be relocated, that is a good spot to put the coils.
I can certainly appreciate that moment when you've made some bespoke one off part then find out it's not going to work the way you wanted it to. I like to tig weld aluminum parts for myself and have done this too many times. Don't trip over that pitfall. Those switches can easily be relocated, that is a good spot to put the coils.
Anybody with the Driftinjim frame bracket care to comment on fitment?
I can remove my switches... but I haven't given up yet!
#10
Couldn't stay away
iTrader: (5)
I'm really torn between trying with some new OEM coils + my Twin Power, or just jumping on a Driftinjim frame rail mount kit with some IGN-1As. It's hard to see exactly how that mount fits in the photos / YT video: https://www.youtube.com/watch?v=e6GqH9wdSRM @F1blueRx7 is placement reasonable? Does it interfere with anything else such as replacing plugs?
There are also coil on plug brackets out there as well. I have no experience with them in terms of fitment, but if you haven't seen them before take a look.
#11
Eats, Sleeps, Dreams Rotary
iTrader: (17)
I have both the SBG and Driftinjim frame brackets, currently using SBG. Their designs are different but both go under the steering column on the frame above the engine subframe, exact position is slightly different. Spark plug wires end up very short and the coil wiring harness can be routed neatly to be tucked away. Here's one from SBG's page and one from Driftinjim's.
#12
Somehow I missed that the RHD SBG was mounted down there. I was talking to Heath @ SBG earlier and he assured me it was 100% PnP (which again helps me out at smog time). So that all sounds good -- my only concern now is grounding. Looks like the @SakeBomb Garage kit has a signal ground but only one power ground...
#13
Sponsor
iTrader: (41)
According to Mercury Marine, each bank (in this case rotor housing) needs to have its own ground. While tying the ground together technically somewhat works, it is far from optimal. As these cars age I see more and more electrical gremlins pop up. On some cars you can get away with it. On others I've seen misfires so bad they hurt the motor.
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#15
Senior Member
iTrader: (2)
I spoke to Chris at LMS about AEM location the other day as I don't want to pull Cruise control from my car. He said another place he mounts them is on the frame rail below the power steering column. I don't quite have a visual on it yet. @neit_jnf is this the location you are referring to in your post?
I think Chris is on this forum but not sure what his user name is.
I think Chris is on this forum but not sure what his user name is.
#17
Eats, Sleeps, Dreams Rotary
iTrader: (17)
I spoke to Chris at LMS about AEM location the other day as I don't want to pull Cruise control from my car. He said another place he mounts them is on the frame rail below the power steering column. I don't quite have a visual on it yet. @neit_jnf is this the location you are referring to in your post?
I think Chris is on this forum but not sure what his user name is.
I think Chris is on this forum but not sure what his user name is.
and is it C. Ludwig? He made my ignition harness
#18
Man I love that program... if for nothing else its auto tune feature.
According to Mercury Marine, each bank (in this case rotor housing) needs to have its own ground. While tying the ground together technically somewhat works, it is far from optimal. As these cars age I see more and more electrical gremlins pop up. On some cars you can get away with it. On others I've seen misfires so bad they hurt the motor.
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#19
It Just Feels Right
iTrader: (11)
FWIW, B2A makes a top mount
https://www.built2apex.com/product-p...t-coil-bracket
That said, one of reasons to relocate is to get the coils away from engine heat. And then there's B2A's lead time and communication (or lack thereof) if you're interested in that option
Probably would not be too difficult to fab something up with aluminum sheet.
https://www.built2apex.com/product-p...t-coil-bracket
That said, one of reasons to relocate is to get the coils away from engine heat. And then there's B2A's lead time and communication (or lack thereof) if you're interested in that option
Probably would not be too difficult to fab something up with aluminum sheet.
#21
Eye In The Sky
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Join Date: Feb 2001
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If the engine runs fine without WI and runs like crap with WI, most likely ignition is not your problem.
You may be running too much water.
Have you actually measured your flow amount ?
True amount with an inline flow meter or max amount with the nozzles in a bottle.
You may be running too much water.
Have you actually measured your flow amount ?
True amount with an inline flow meter or max amount with the nozzles in a bottle.
#22
I just so happen to have a massive boost leak at the moment. Long story short, a while back I had a mechanic replace the paper LIM gasket for me (that really wasn't a job I felt like doing). In the process, he did me the "favor" of removing the AWS pipe that goes from the back of the UIM to the intake elbow, replacing it with a block-off plate. That plate has since rattled off, leaving a huge boost leak (he also left the AWS solenoid disconnected -- so I assume it is presently in a partially open position). Perhaps this boost leak is influencing how my motor is reacting to water injection?
I did notice that even on a modest 200-mile freeway journey, staying easy on the throttle because of other recent changes that were not tuned for yet, I went though about 1/2 gallon of water which surprised me.
#23
Eye In The Sky
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My single turbo setup is a short runner FP HTA GT3582R 1.06 hotside.
When I was running 50/50 water meth at 18.5 psi boost, my flow rate was 425 cc/m into a bottle.
Since I am back at water injection only, my WI rate is now about 325 cc/m.
You are flooding out your spark!
Go to Aquamist site and search for posts about flow rates vs power.
When I was running 50/50 water meth at 18.5 psi boost, my flow rate was 425 cc/m into a bottle.
Since I am back at water injection only, my WI rate is now about 325 cc/m.
You are flooding out your spark!
Go to Aquamist site and search for posts about flow rates vs power.
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alexdimen (12-07-20)
#24
My single turbo setup is a short runner FP HTA GT3582R 1.06 hotside.
When I was running 50/50 water meth at 18.5 psi boost, my flow rate was 425 cc/m into a bottle.
Since I am back at water injection only, my WI rate is now about 325 cc/m.
You are flooding out your spark!
Go to Aquamist site and search for posts about flow rates vs power.
When I was running 50/50 water meth at 18.5 psi boost, my flow rate was 425 cc/m into a bottle.
Since I am back at water injection only, my WI rate is now about 325 cc/m.
You are flooding out your spark!
Go to Aquamist site and search for posts about flow rates vs power.
#25
Couldn't stay away
iTrader: (5)
According to Mercury Marine, each bank (in this case rotor housing) needs to have its own ground. While tying the ground together technically somewhat works, it is far from optimal. As these cars age I see more and more electrical gremlins pop up. On some cars you can get away with it. On others I've seen misfires so bad they hurt the motor.
The following users liked this post:
IRPerformance (12-07-20)