Be18again Posted March 23, 2011 Author Share Posted March 23, 2011 Can't sniff at that!After reading this forum, I'm very confused. It seems 'performance' mods make the 1.8 VTi LOSE power!Quite dissapointing. Link to comment Share on other sites More sharing options...
noodels Posted March 23, 2011 Share Posted March 23, 2011 Link to comment Share on other sites More sharing options...
cal Posted March 23, 2011 Share Posted March 23, 2011 the exhaust to me is the major restriction. found mine to feel so much better after changing it. manifold, de cat and exhaust.after reading some of john's posts also the ecu is pretty poor i.e the map Link to comment Share on other sites More sharing options...
Be18again Posted March 23, 2011 Author Share Posted March 23, 2011 Considering stripping the interior (everything behind the front seats) and changing the front seats to lightweights.So, am I right in saying the best mods I could do are:S80 'boxECU swapIntegra TR airbox and filter?All other mods would lose power?Or do they only lose power if mapping isn't optimal for modifications applied? Link to comment Share on other sites More sharing options...
anthony5 Posted March 24, 2011 Share Posted March 24, 2011 de-cat made an amazing difference to my vti-s, would go as far as to say it transformed the way it drove Link to comment Share on other sites More sharing options...
Gav_ek4 Posted March 24, 2011 Share Posted March 24, 2011 my vti-s has an oem middle and rear exhaust, de resonated airbox with loads of 8mm holes drilled in the front half, decat and some decent plug leads and an s4c ek9 gearbox and it pulls hard all the way to the limiter in fifth without problem Link to comment Share on other sites More sharing options...
ryan.. Posted March 24, 2011 Share Posted March 24, 2011 If you are really worried about making sure everything you do making a difference you must have the ecu mapped each time anything is done. Changing the intake.....the air/fuel mix will change so that needs a re-map, same goes for all other changes. The standard ecu is designed to run the engine as it is, start messing with things and you will probably loose power. Only thing which wont need a re-map really is changing the gearbox which is a must if you want faster acceleration out of it ek9 or ek4 boxes are the ones to get I think Link to comment Share on other sites More sharing options...
johngreen537 Posted March 24, 2011 Share Posted March 24, 2011 I'd go for decat, and bigger bore exhaust, then ITR 96 JDM spec exhaust manifold.Or, for about the same price, Y21, S4C or S80 box. These are the best performance mod for the money. Link to comment Share on other sites More sharing options...
jonnyricer Posted March 25, 2011 Share Posted March 25, 2011 you should nt be going above 70 mph naughty naughty Link to comment Share on other sites More sharing options...
knight Posted March 25, 2011 Share Posted March 25, 2011 you should nt be going above 70 mph naughty naughty Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.