LewisL Posted July 16, 2008 Share Posted July 16, 2008 Hi all, Never tuned a NA car! always had turbo'd cars! Dont want to go crazy as Ive waisted far too much on cars in my life as it is! lol So just looking @ bolt on items! If i was to fit a inducton kit(cold air fed) & a zorst(possibly de-cat) would i need a ECU upgrade of some form!? if so what 1s are about!? or can the standard ECU be tinkered with!? what sort of power gains should i expect from these mods!? Would i benifit from a oil breather/catch tank!? or is the standard setup sufficent!? Going to get a gorunding kit just in case it does help a little! are there any other mods avaliable!? Quote Link to comment Share on other sites More sharing options...
GIXXERUK Posted July 16, 2008 Share Posted July 16, 2008 plenum spacer is really the only thing that gives any effect, everything else is cancelled out by the ecu the ecu upgrade is expensive with little gains for big gain that are worth any value you need to go FI, everything is just adjusting the soundtrack to your car e.g. exhaust, intake etc the grounding kit in some cases makes it smoother (worked for me ) Quote Link to comment Share on other sites More sharing options...
M13KYF Posted July 16, 2008 Share Posted July 16, 2008 the ECU unfortunately cancels out any power gains. Anything fitted is for sound and looks really unless you put on a piggy back ECU. Plenty on info on here to read with the search button. Quote Link to comment Share on other sites More sharing options...
martinmac Posted July 16, 2008 Share Posted July 16, 2008 Hi bud, the first and pretty simple answer is that any such power gain from intakes and exhausts are cancelled out by the ECU. Its cosmetic/sound only. Cold air intakes are available for about £85 upwards. Exhausts from about £400 upwards. All a matter of choice of sounds. Grounding kit improvements, different members have had differing results but none bad. If you are looking to upgrade the ECU do a search on here, it has been discussed too many times to link. Quote Link to comment Share on other sites More sharing options...
N15MNO-Daron Posted July 16, 2008 Share Posted July 16, 2008 Hi bud, the first and pretty simple answer is that any such power gain from intakes and exhausts are cancelled out by the ECU. Its cosmetic/sound only. Not if u got a 02/03 import Quote Link to comment Share on other sites More sharing options...
GIXXERUK Posted July 16, 2008 Share Posted July 16, 2008 In laymans terms its all about suck bang blow but the ecu puts a condom on it all unless you have a 02/03 import Quote Link to comment Share on other sites More sharing options...
N15MNO-Daron Posted July 16, 2008 Share Posted July 16, 2008 Nice description GIXXERUK! Quote Link to comment Share on other sites More sharing options...
IanS16 Posted July 16, 2008 Share Posted July 16, 2008 In laymans terms its all about suck bang blow but the ecu puts a condom on it all unless you have a 02/03 import Quote Link to comment Share on other sites More sharing options...
LewisL Posted July 17, 2008 Author Share Posted July 17, 2008 ok cheers lads! does putting a zorst air filter on effect performance in a negative way then!? i assume it snot worth de-cating then!? plenum spacer aye!? what increase do you see from doing this!? how much are they!? & are ther enay aftermarket cpmplete plenums!? Dont want to turbo it just yet lol! dont think the mrs will enjoy me pulling this 1 apart on the driver & sinking stoopid amounts of money into it! what piggy back ecu's are there & who tinkers with them!? should of kept my old pectel T2 ecu Quote Link to comment Share on other sites More sharing options...
3FIDDYZ Posted July 17, 2008 Share Posted July 17, 2008 Not decat, put hi-flow cats on. Decats can mess with the cat sensors... Decats have also been found to have a negative effect... Plenum Spacer, CAI, hiflows and zorst with new y-pipe will give the best sound track. Plenum spacer gets air to all 6 cylinders rather than more to 4 and leaving the other 2 gagging!! Simple upgrade really... Where you based? Quote Link to comment Share on other sites More sharing options...
GC350z Posted July 17, 2008 Share Posted July 17, 2008 does putting a zorst air filter on effect performance in a negative way then!? I've never ever seen comparison dyno's of before and after but yes mod's of this type can have a negative effect on performance. Quote Link to comment Share on other sites More sharing options...
Adam@Z1auto.com Posted July 17, 2008 Share Posted July 17, 2008 ok cheers lads! does putting a zorst air filter on effect performance in a negative way then!? i assume it snot worth de-cating then!? plenum spacer aye!? what increase do you see from doing this!? how much are they!? & are ther enay aftermarket cpmplete plenums!? Dont want to turbo it just yet lol! dont think the mrs will enjoy me pulling this 1 apart on the driver & sinking stoopid amounts of money into it! what piggy back ecu's are there & who tinkers with them!? should of kept my old pectel T2 ecu Doing test pipes (decat) will net more power than high flow cats, but they do emit more odor (nothing there to absorb the gas fumes) and are louder Plenum spacers are a nice, cost effective way to get some more power throughout the rev range. Intake wise - pick your poison. None really amount to anything with basic bolt ons. A full exhaust will net decent NA gains as well. True dual or Y pipe + catback,. again pick your poison type of deal. All net similar gains, it comes down to sound/budget/looks. Overall the tune is mandatory to reap the most benefits. The exhaust mods coupled with the spacer and a solid tune will net you in the 20-30 whp range gains consistently, sometimes even a bit higher. On my own car, I went from a base line of 224 whp to 269 whp with just these basic mods. Of course that was not enough, so I then went further to a full NA build Quote Link to comment Share on other sites More sharing options...
LewisL Posted July 18, 2008 Author Share Posted July 18, 2008 Based in Bristol Adam when you say with a solid tune do you mean a re-map on the ecu(piggy back) or can you play around with the timing a little etc fropm standard!? 20-30whp is a pretty good gain so i would consider doing a few mods for that sort of gain! Getting a bit older now so not really after stoopid loud exhaust i really wouldnt want to go much louder than the standard system is! perhaps i will just try & spacer & see what goes form there! & just start hiding £££ from the mrs til i got enough for FI! Quote Link to comment Share on other sites More sharing options...
N15MNO-Daron Posted July 18, 2008 Share Posted July 18, 2008 if u going FI.. just save £6.5k minimum for that, get it done and enjoy 360-400hp nismo exhaust isnt too loud.. and looks reasonably stock in comparison to others.. and i added a K&N induction kit..also i dont think it made too much difference to the noise level. Quote Link to comment Share on other sites More sharing options...
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