Blowing out spark Car is water injected we are at 30psi 7000rpm
ignition setup is a crane hi6
I am injecting 700cc of water
any Suggestions ?
do we think the ign-1a coils can out do what I have currently

 

I'd give them a shot. I haven't heard of anyone having spark issues with the IGN-1A.

 

Highest power on ign1a coils that I am aware or is 850rwhp. This was race gas however.

We have the coils in stock if you want to give them a shot.

 

The IGN1-A coils are very good and offer advantages over CD ignition in that you get similar or better spark energy and increased spark dwell.

If in fact it's the capability of your ignition that's holding you back then you certainly should try the IGN1-A coils, but first you should make sure there's not another problem. What kind of plugs, and what gap? You're sure the mixture is good, not too rich? People tuning the AFR TO 10:1 can run into the limit of the AFR gauge, and actually end up much richer and flood the combustion.

 

I use a crane Hi-6 and LX-92 coil per leading plug (so 2x each) and I didn't have any problems at 28psi and afrs >10:1. Didn't get to try higher boost as I ran out of fuel.

It can be so rich it chuffs soot out the WG like a diesel and it pulls through fine. We made little drawings in the soot...

 

Blue tii what fuel are you using and are using wi
If so what quantity ?

 

No, just straight 116.

Edit- that was on the dyno so straight 104 unleaded.

 

So, you need the ign-1a for the internal ignitor?

Because I looked at the ign-1a and LX-92 coils and they have some different stats (and Crane recommends LX-92 for use with Hi-6).

Are you using 1 or 2 Hi-6 units? Do you have big gauge wire to the Hi-6(s)?

I have literally had my car stumble start on engine assembly lube fumes after a rebuild with just fuel inj/pump disabled building oil pressure, so now I disable ignition as well.

But then I guess there is a difference between big spark and sparking under big pressures.

What plugs you run?

 

Sorry mate but you cannot compare a WI tune to anything else.
I have tuned cars with the Hi-6 to 45psi on Meth with no missing what so ever.

WI puts exteme loads on the ignition system.

If i was to use the IGN-1A i would not use it in conjunction with the CDI.

 

Got my hands on 2 IGN-1A coils. I have bypassed the cranes and wired them in.
Initial impressions on the road is that they feel the same/Maybe alittle better. Ill see if i can get it on the dyno tonight to get a real comparison.

 

 

nice argument for a decent HEI over CDI

 

Dyno wasn't available tonight. Hopefully tomorrow.

I think the IGN-1A is powerful enough to cater for most cars. Pretty impressive for what they are.

 

Well we put that one to bed quickly. Slightly better but not enough.

M&W Pro Drag 2 going in tomorrow.

 

^Keep us posted!

Have you tried the popular MSD DIS 2 (1 for leading & 1 for trailing) and MSD DIS Blaster Coils?

 

I have not.
The prodrag is next and im hoping it will get us accross the line so the customer can have his car back. His getting itchy lol. Im having more fun then he is.

 

What coils are using with the M&W?


J.

 

We used the LX92 coils with the M&W CDI.

Putting the M&W CDI fixed our missfire although it didn't fix the power drop.
Power drop ended up being an exhaust restriction.
Dropping the exhaust resulted in 645rwhp on the same boost.
Best i could do with full 3.5inch exhaust was 588rwhp. (Which is obviously the power figure that counts, can't drive around a road car with no exhaust).
Now to figure out how to fit a 4 inch exhaust on the next project.

I would dare say if we had addressed the exhaust issue, all 3 ignition systems would have been sufficient. I guess I won't find out till the next project. This one is now done and the customer is giving it a work out.

 

Now, those are some #'s. Congrats on getting the issue resolved.

 

Are the waste gates routed back into the exhaust? I just can't see a 3.5 inch exaust being that much of a restriction if they ate being dumped to atmosphere.

 

Are the waste gates routed back into the exhaust? I just can't see a 3.5 inch exaust being that much of a restriction if they ate being dumped to atmosphere.

Are you accounting for the huge amount of water vapor from the aux injection adding to the mass of exhaust flow?

 

Yes it is being dumped to atmosphere.

By the time I was at 8000rpm exhaust back pressure was near 9psi. whereas it hovered around 1-2psi for the rest of the run.

And seeing as i dropped the exhaust and it started making power, do you think that something else was causing the issue?

 

Something doesn't quite add up. I've made 850rwhp with a 3.5in exhaust, bigger turbo, more boost, inductive ignition, water injection/pump gas.

I'm assuming your muffler is of a true straight thru design?

 

Does the 3.5 exhaust further taper down to a smaller diameter perhaps going into a silencer or baffle?

 

What was the final boost pressure for 64x rwhp run. Nice work btw and thanks for sharing.