Jump to content
SAU Community

Recommended Posts

I did use the search function but all I found is built thread with people saying they have a DLI installed lol..

I bought a HKS DLI with the idea to buy a brand new set of coilpack to replace my 20yr old oem coilpacks. I know OEM coilpacks can be good up to 800whp. ( If I break the 500whp I will call it a day lol). I also know that brand new coilpacks can give you an extra 3-6whp.

1) Can coilpacks, after times ( in my case 20 yr old lol), becomes less efficient? Would a HKS twin power boost the spark and make them act like brand new coils?

2) Can I really see a gain if I get brand new OEM coils + the HKS DLI ? Or I'm better with only a new set?

If both situation get the same result, I rather buy a set of coilpack then keep old coilpacks and add an extra metal box in my motor.

Is it wise to change the coilpack loom while I'm there too?

Edited by cobrAA

I did use the search function but all I found is built thread with people saying they have a DLI installed lol..

I bought a HKS DLI with the idea to buy a brand new set of coilpack to replace my 20yr old oem coilpacks. I know OEM coilpacks can be good up to 800whp. ( If I break the 500whp I will call it a day lol). I also know that brand new coilpacks can give you an extra 3-6whp.

1) Can coilpacks, after times ( in my case 20 yr old lol), becomes less efficient? Would a HKS twin power boost the spark and make them act like brand new coils?

2) Can I really see a gain if I get brand new OEM coils + the HKS DLI ? Or I'm better with only a new set?

If both situation get the same result, I rather buy a set of coilpack then keep old coilpacks and add an extra metal box in my motor.

Is it wise to change the coilpack loom while I'm there too?

Personally, I'd buy a new set of OEM coils and install the HKS DLI if I have any spark issues (ensure your gaps and heat range are correct) but 500whp is pretty stable for new OEM coils. If you have it though, you could always install it I guess.

As for your ignition harness, if it's crispy or you have some connectors that are starting to break, I have one with less than 1,000km on it, bought last year. Shipping from someone close ;)

I had my stock coil packs start to break down over 20psi (370ish rwkw)....while using the Twin spark. Went and bought a new set of stock coils and all good.

Personally in your case I would buy a new set of coils.... and if you still have issues then chuck a twin spark at it.

I had my stock coil packs start to break down over 20psi (370ish rwkw)....while using the Twin spark. Went and bought a new set of stock coils and all good.

Personally in your case I would buy a new set of coils.... and if you still have issues then chuck a twin spark at it.

This exactly.

You've purchased stuff backwards.

Replace the coils first, if issues persist then use the DLI

instead of paying well over $1k for an OEM coil pack, get a set of spitfires.

I run Spitfire coils and a HKS TwinSpark. No spark issues. @ 620hp atw.

we tested brand new oem vs splitfires and found we could run more boost with the oem ones.. even SR20 ones.

New oem ones are now cheaper than splitfires....

ATM the coil packs average $55usd each brand new...

  • Like 1

instead of paying well over $1k for an OEM coil pack, get a set of spitfires.

I run Spitfire coils and a HKS TwinSpark. No spark issues. @ 620hp atw.

that,s the thing.. At my local dealer, they sell 6 coilpacks for 300$ tax included LOLLLLL 2x cheaper than spitfire or 150$ less than yellowjacket.

and my friend needed money quick and sold me his twin power for least than half the MSRP. I couldn't say no. Worst case, I will simply sell it back.

Edited by cobrAA

we tested brand new oem vs splitfires and found we could run more boost with the oem ones.. even SR20 ones.

New oem ones are now cheaper than splitfires....

ATM the coil packs average $55usd each brand new...

Very good point... OEM are great but when they are 10-20 years old they need replacing!

I was unaware you could get them that cheap now days, last time I looked they were about $200 each :(

we tested brand new oem vs splitfires and found we could run more boost with the oem ones.. even SR20 ones.

New oem ones are now cheaper than splitfires....

ATM the coil packs average $55usd each brand new...

lol when did that happen? i remember buying my splitfires cause they were cheaper than new OEM's (and JDM tyte y0)

locally you can't get them that cheap, Nissan Aus i don't believe have altered pricing.

For some odd reason, Nissan US have some items much cheaper in some instances.

Yeah all my parts now come from the US, generally 5 day from order to door.

Sux i know not to support local business but if its half price in another country including freight then im sorry... your not competitive.

Just get onto a supplier, some stuff is cheaper - some stuff just isn't.

NFI what governs pricing, but its likely as a GTR was sold here (32) they are putting it up.

They weren't locally delivered there so perhaps not so much profiteering going on.

I mean just for a CAS, there is a $400 "Nissan" markup over what Mitsu charge them for it

I upgraded to LS2 Truck Coil Packs. No more ignition problems and they outperform the others.

just makes for an untidy engine bay and introduces plug leads into the equation which is another point of failure. Put new oem coilpacks in and ignore them for another 10 years :P

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • And finally, the front lower mount. It was doubly weird. Firstly, the lower mount is held in with a bracket that has 3 bolts (it also acts as the steering lock stop), and then a nut on the shock lower mount itself. So, remove the 3x 14mm head bolts , then the 17mm nut that holds the shock in. From there, you can't actually remove the shock from the lower mount bolt (took me a while to work that out....) Sadly I don't have a pic of the other side, but the swaybar mounts to the same bolt that holds the shock in. You need to push that swaybar mount/bolt back so the shock can be pulled out past the lower control arm.  In this pic you can see the bolt partly pushed back, but it had to go further than that to release the shock. Once the shock is out, putting the new one in is "reverse of disassembly". Put the top of the shock through at least one hole and put a nut on loosely to hold it in place. Put the lower end in place and push the swaybar mount / shock bolt back in place, then loosely attach the other 2 top nuts. Bolt the bracket back in place with the 14mm head bolts and finally put the nut onto the lower bolt. Done....you have new suspension on your v37!
    • And now to the front.  No pics of the 3 nuts holding the front struts on, they are easy to spot. Undo 2 and leave the closest one on loosely. Underneath we have to deal with the wiring again, but this time its worse because the plug is behind the guard liner. You'll have to decide how much of the guard liner to remove, I undid the lower liner's top, inside and lower clips, but didn't pull it full off the guard. Same issue undoing the plug as at the rear, you need to firmly push the release clip from below while equally firmly gripping the plug body and pulling it out of  the socket. I used my fancy electrical disconnect pliers to get in there There is also one clip for the wiring, unlike at the rear I could not get behind it so just had to lever it up and out.....not in great condition to re-use in future.
    • Onto the rear lower shock mount. It's worth starting with a decent degrease to remove 10+ years of road grime, and perhaps also spray a penetrating oil on the shock lower nut. Don't forget to include the shock wiring and plug in the clean.... Deal with the wiring first; you need to release 2 clips where the wiring goes into the bracket (use long nose pliers behind the bracket to compress the clip so you can reuse it), and the rubber mount slides out, then release the plug.  I found it very hard to unplug, from underneath you can compress the tab with a screwdriver or similar, and gently but firmly pull the plug out of the socket (regular pliers may help but don't put too much pressure on the plastic. The lower mount is straightforward, 17mm nut and you can pull the shock out. As I wasn't putting a standard shock back in, I gave the car side wiring socket a generous gob of dialectric grease to keep crap out in the future. Putting the new shock in is straightforward, feed it into at least 1 of the bolt holes at the top and reach around to put a nut on it to hold it up. Then put on the other 2 top nuts loosely and put the shock onto the lower mounting bolt (you may need to lift the hub a little if the new shock is shorter). Tighten the lower nut and 3 upper nuts and you are done. In my case the BC Racing shocks came assembled for the fronts, but the rears needed to re-use the factory strut tops. For that you need spring compressors to take the pressure off the top nut (they are compressed enough when the spring can move between the top and bottom spring seats. Then a 17mm ring spanner to undo the nut while using an 8mm open spanner to stop the shaft turning (or, if you are really lucky you might get it off with a rattle gun).
    • You will now be able to lift the parcel shelf trim enough to get to the shock cover bolts; if you need to full remove the parcel shelf trim for some reason you also remove the escutcheons around the rear seat release and you will have to unplug the high stop light wiring from the boot. Next up is removal of the bracket; 6 nuts and a bolt Good news, you've finally got to the strut top! Remove the dust cover and the 3 shock mount nuts (perhaps leave 1 on lightly for now....) Same on the other side, but easier now you've done it all before
    • OK, so a bunch of trim needs to come off to get to the rear shock top mounts. Once the seat is out of the way, the plastic trim needs to come off. Remove 2 clips at the top then slide the trim towards the centre of the car to clear the lower clip Next you need to be able to lift the parcel shelf, which means you need to remove the mid dark trim around the door, and then the upper light trim above the parcel shelf. The mid trim has a clip in the middle to remove first, then lift the lowest trim off the top of the mid trim (unclips). At the top there is a hidden clip on the inner side to release first by pulling inwards, then the main clip releases by pulling the top towards the front of the car. The door seal comes off with the trim, just put them aside. The the lighter upper trim, this is easy to break to top clips so take it carefully. There is a hidden clip towards the bottom and another in the middle to release first by pulling inwards. Once they are out, there are 3 clips along the rear windscreen side of the panel that are hard to get under. This is what the rear of the panel looks like to assist:
×
×
  • Create New...