hey guys n gals. quick question. was at a tuning shop this week, and talking to a few car tuners in there. He said if i decided to put the hal-tech computer in my 300 that the rev-limiter would be removed and i could run much higher RPM. however in order do that that, and get more power properly, he said i should invest in come ignition coils. he couldnt point me in the right direction for people that sell them for 300zx's so i gathered i would ask. where can i source some for a 300zx? would they make, that much of a difference? if buying these i gather i need iridium spark plugs like spit fire of something? thanks alot in advance guys. kindest regards. rod.
I don't think there will be any gain at all. The Nissan coils are good quality and unless they are breaking down I don't see the point in changing them spend the money elsewhere.
yeah i didnt know that. thanks. but there is no where else to spend money without compromising drivability. mild cams etc are good, but to source them etc would take forever. just wanted to know if they were worth updating and buying good ones with iridium plugs. just need to get my tuned length headers. then i will start looking at spark.
No sense upgrading coils at your power level. Splitfire is the brand of the if you are still keen. Mild cams are a step in the right direction and are easy to get through Coz. They will effect driveability very little.
That is the key point here. It is hard, to near on impossible to increase power without effecting driveability especially in a NA. Extactors are about the limit, but they come with noise issues. Essentially, you can't have your cake and eat it too. Want more power? work out what you are going to sacrific. Some are happy to loose a little low end power for more poke at the top end. But how much> you only know after you have spent the money. Firstly as a bit of an insight I would be very surprised that aftermarket coils would be needed on an NA, regardless of its power. Probably just new standard ones are required. A lot of people build crazy engine cars that squash the torque curve up so it is horrific at low revs. Learn from other mistakes.
i don't have a haltech but i've had in the past a 7500rpm limiter as well as splitfire coilpacks. let's just say there's little point going past 7 and i've also gone back to stock coilpacks. take from that what you will.
Listen to Mike and Dave, they know what they are talking about regarding NA's. And don't go try and spin the engine too quick. No power up high without new cams, all you will do is blow it up.
Rod, a word of wisdom ..... Send all your savings & future income to my a/c; I'll invest it wisely + only release funds upon Forum peers say so for sanctioned upgrades. :zlove:
actually thats a funny story. lets just say, "it may already be done?" maybe watch for a thread in technical soon ok, should do some more reading on this me thinks. thanks alot for the reply. want to re-search mild cams etc. thanks dave ! tuned length is on my plate at the moment. so dealing with the noise issues there, then will go to engine related power / sacrifice. ahh ok. thanks mike. realised quite quickly that there is no point now. try to spin the engine to quick? what do you mean by this chris? so in order for power, i really need cams? hahaha rob... your a funny man but sorry
Whilst, flattering do not take what I write as always the thing to do. I am just passing on what I have found along the way, with modding cars.
Maybe you could try to find a set of coilpacks from a later model zed. I managed to score a cheap set and they are (supposedly) an upgrade from the series 1 coilpacks, but I didn't really notice any difference (my old coilpacks were dodgy). If your current coilpacks are fine (ohm test them) I would just stick with them + series 2 ptu and a good set of spark plugs. He probably recomended the splitfires to you because a lot of skylines and silvias actually need the splitfires since their OEM coilpacks aren't as good.
Money burning a hole in your pocket. Don't spend it trying to get mega power out of an N/A ... it isn't going to happen. Either do a T/T swap or sell the NA and buy a T/T
Spin the engine too quick = revvin' it's tits off. What your tuner is saying you can do if you chuck the Haltec in. If you have done extractors, exhaust, intake, UDP, thermofan, lightweight fly, 1 piece tailshaft the only real next step is cams. Aza has the JWT milds in his and it pulls HARD. Noisy as, but quick Sounds a bit like a two stroke though You're too modest Dave
no rest for the wicked. thanks matt haha. yeah, just need to get my hands on a series 2 PTU. ahhh ok! makes sence now. was a few silvias etc there. I dont know to much about the coils (obviously) but seems thats the zed ones are fairly able to handle the power levels. going to test ohm on them tomorrow morning then will post. thanks sandeep. mega power? it's unused power more honestly. i find turbos, i dont know.. a waste? take time to spool up, yeah they have a kick and produce power much more easily and less from the engine as say a supercharger, but the SC has low down, more or less instant, i find usable power. the turbo's have spool. so 1 - 3.5k revs is almost wasted ? and nahhh. TT's ont interest me at the moment. more content on this project then will go the turbo route. lol gathered so. no point removing the red line, wouldnt want to go much past 6k anyways, there is no real power as you say, falls off. just going to get onto dr400z's? ford thermo fan mod, get my extractors finalised and then i think i will grab a set of the JWT milds. will PM aza and see what he has to say about them anyways. thanks alot guys. appreciate all the time put into the answers. kindest regards. rod.
bullcrap. your trying to tell me a TT will spool faster than an SC? or a TT set up has no lag... i quite clearly remember going for a ride in both martins and kirills TT. both modified in some way be it little or not they both had lag.
