Robo's

Mine has a few burnt marks like that, not that bad though, but you can see the odd color

Is a hi temp silicon ok?

i studied them for about an hour under some good light. I might just do it for the sake of it anyway

Check the signature

What are the symptons of this. Im getting a total power loss for a split second and then full power then loss again. Its only in the midrange between 4000 to 5000 at max boost. Up high its fine!! Can i read the maximum signal off the SAFC?

I couldnt find any cracks on the body of the coil as shown in your pic. I found a few little marks on the clear part though. If thats the case i pull them out one by one and try and fix them. Its annoying

Well after trying to fix my coils with coating the clear part of the coil with silicon, it did fix it somewhat with no mid range misses. So ive upped the boost and seem to get a few other problems , but thats another story. I decided to leave the coil cover off, and when i got home in darkness had a look underneath for spark. And to my discovery, ive saw lightning on about 4 coils. Will check it again tomorrow night for a better check. Looks like im up for a new set.

Ive upped the ante on the 2530, raising it too 17psi, and now i get a sudden total loss of power in the mid range. As i accelerate hard in 3rd from 3000rpm, i get 1 or 2 sudden losses in power for a split second and then it comes back, its between 4000-5000rpm. Im thinking its the standard AFM to Turbo rubber pipe being sucked in fully and then re-opening under hi boost. Opinions?

HKS 2530 SAFC 2 13.8psi Ultimate

Oops

Here is the dyno sheet, notice the missfire at 4500rpm

Ive noticed there $501 on the Nengun website

At the moment im disconnecting connectors so it doesnt start, even fooled me once, until i organise some new barrels or locks. And also ive got a car parked in front of the garage.

I dont mind it dropping off boost up top if i can get that extra mid range urge. I felt it and i like it, but i cant live with it missing at 4500rpm. It does it every single time. Even with the stock turbo it would miss at 4500 at 14psi, so we moved it back to 13psi. What did you do to fix your coil packs? Silicon or Araldite? Ideally, my spark plug is too small at .66, to me this is only a bandaid fix to eliminate the miss, so i would like at least a 0.8 gap as this is an ideal gap for performance.

How did you guys go with the areldite? Still successfull?

Where do you silicon, between the rubber boot and the base?? I need to do something with mine and if this is a short cut, i will try it

There a drop in replacement from the standard ones.

Obviously people arent too interested in cruising. The Commodore club have a show of around 200 cars at each meet, and even the LS1's get a good strong regular crowd as well and they have meets nearly every week.

No alterations to the fuel system as yet.

I can adjust the preload of the actuator where i want, but still its going to have that midrange peak of boost. Lithium, Down low it is virtually eye for eye with the stock turbo, above 5000rpm is where it improves. But, when running 17psi in earlier testing, midrange before 4500rpm was pulling like a train. At 100k in 4th, you could just boot it and it would take off, nice!!

Just came off the dyno tuning my R33 with a HKS 2530 with mixed results. Firstly peak power we got was 220rwkw @ 13.8psi. A good result considering the boost we could run. Now the problems!! (Standard turbo i was getting 207rwkw with exactly the same setup) 1) Running a HKS actuator, we are still loosing a shit load of boost up high. That power run of 13.8 dropped down to 9.2 at 6400rpm where we got max power. I had the bleed valve nearly turned off on this run, so im going to take it off and run no bleed valve just too see if there is a leak. 2) Secondly, we couldnt run anymore boost as we got savage missfires at 4500rpm on every run. So the only way to eliminate the missfires was too reduce boost . I wasnt impressed as earlier i was running near 17psi, and could feel the stronger low down torque before the missfires at 4500rpm. Air Fuel ratios where spot on, so the missfire is not fuel related. 3) Missfires, this is interesting, i gapped new plugs the night before to .66 so it cant be the plugs. Now im only running a SAFC 2 for tuning, so either a) The standard ECU is giving me too much timing at the 4500rpm mark where max boost is reached? But why doesnt it ping then? I am showing or hearing no detenation at this point. And it doesnt ping up high either. B) Coil packs, i am thinking i have weak coils and the spark is being blown out by the max boost at this point? Overall, im sort of happy with the result as the top feels much stronger, but i know with some extra boost there is alot more left in it.

Never mind, i think i found the problem, 2 cracked plugs. Will know tomorrow when its dynoed.

We all know to reduce spark plug gap on the standard turbo, but do we have to reduce it more when running an aftermarket turbo running more boost. Ive installed the HKS 2530 and running 17psi, i get a strong missfire around the 4500rpm mark. Im getting it dynoed tomorrow to check the A/F ratios, but ive had a quick road tune and neither do rich or lean make any difference to the miss. Im going to pull the plugs out now, there brand new and i gapped them too .7 .

Sounds like the stock coils are pretty weak.

Ive just got a set to get me through and mobile!!! Once im sorted out, locks and alarm will be changed.