bluesmuso Member 144 Member For: 17y 4m 17d Gender: Male Location: South Australia Posted 15/08/09 10:20 AM Share Posted 15/08/09 10:20 AM (edited) My car goes very well (203rwkw's on recent dyno) under heavy throttle but has always felt 'doughy' on light to medium throttle applications in day to day driving, you really need to bury your foot and then it flies.Is this just normal "turbo lag' (the gt40 is a big turbo charger) or could it be something else?It also gets poor economy with the average on the trip computer showing 18-19 litres per 100km's with average speed of a low 32 kph, I do lots of stop start driving etc, but it feels as if it will not get moving with the traffic unless I have at least half throttle, I'd much prefer a more "crisp" throttle response.I am going to do the K & N panel filter and F6 snorkel thing and then get a tune, maybe that will help it, I have not yet replaced the stock air cleaner but upon inspection it seems ok and pretty clean.It is more than likely turbo lag of which I can do nothing about but it would be nice not to have to really get up it to keep up with traffic, any tips would be much appreciated Bluesmuso Edited 15/08/09 10:21 AM by bluesmuso Link to comment Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 17y 11m Gender: Male Location: SW Sydney Posted 15/08/09 10:30 AM Share Posted 15/08/09 10:30 AM make sure you check all inlet connections from the airbox all the way to the throttle bosy, generally a small boost leak will hurt your throttle response Link to comment Share on other sites More sharing options...
bluesmuso Member 144 Member For: 17y 4m 17d Gender: Male Location: South Australia Posted 15/08/09 12:03 PM Author Share Posted 15/08/09 12:03 PM Yeah I'll do that, I think the connections are ok but I should also look at the inlet manifold bolts. Another thing I should have mentioned is that I've cut the hole in the air filter box ready for the F6 snorkel so that may well be sucking in hot air until I install the F6 secondary intake, but it was already weak in throttle response before I did that anyway. cheers Bluesmuso Link to comment Share on other sites More sharing options...
berzerker Donating Members 767 Member For: 17y 17d Gender: Male Location: Brisbane Posted 15/08/09 12:19 PM Share Posted 15/08/09 12:19 PM Ive also thought the car was a slug until woken up with a heavy foot, but assumed that this is how these cars are.. Link to comment Share on other sites More sharing options...
XROO7 Member 35 Member For: 15y 7m 16d Gender: Male Location: Adelaide Posted 15/08/09 12:43 PM Share Posted 15/08/09 12:43 PM Give your boost solenoid a service and see how it goes.Try one thing at a time so you know what fixes it.good luck Link to comment Share on other sites More sharing options...
berzerker Donating Members 767 Member For: 17y 17d Gender: Male Location: Brisbane Posted 15/08/09 02:12 PM Share Posted 15/08/09 02:12 PM lol, dont do the boost solenoid... my car took 3 weeks to get back to normal after id done this.. idle was all over the place.Not sure whether the boost solenoid is in any way connected with the idle, but soon as I did it, idle was up and unitl I assumed the WD40 had dried up in the pipe. Link to comment Share on other sites More sharing options...
discostig Manual mode ________________________ All day, erryday Donating Members 13,798 Member For: 17y 1m 14d Gender: Male Location: Probably above atmospheric pressure Posted 16/08/09 02:05 PM Share Posted 16/08/09 02:05 PM I've done the WD40 into the solenoid twice and had no ill effects, in fact I'm about to do it again!! That and clean the throttle body, also something I'd recommend doing to give the car a bit of a pick me up. Try them one at a time though just to see how each affects the car Link to comment Share on other sites More sharing options...
turbo.vixen Hey guys, Tab is here... Oh i feel sick Lifetime Members 8,459 Member For: 16y 7m 15d Gender: Male Location: sunshine coast Posted 16/08/09 07:52 PM Share Posted 16/08/09 07:52 PM sounds like you've gotten use to the power, there's only one way to fix it, time for some mods Link to comment Share on other sites More sharing options...
wados Member 617 Member For: 20y 2m 21d Gender: Male Location: brisbane Posted 17/08/09 07:08 AM Share Posted 17/08/09 07:08 AM sounds like you've gotten use to the power, there's only one way to fix it, time for some modsLOL....once you pop you cant stopatleast try what the other guys have said, if not get a tune then you can get it the way you like it Link to comment Share on other sites More sharing options...
RSK Member 340 Member For: 17y 3m 25d Gender: Male Posted 17/08/09 01:00 PM Share Posted 17/08/09 01:00 PM (edited) Time for an edit. Sadly when stock I always thought my car was like this. 4spd didn't help. After the edit 1/4 throttle and you've left just about everyone dead from a set of lights. Edited 17/08/09 01:03 PM by RSK Link to comment Share on other sites More sharing options...
Recommended Posts
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 accountSign in
Already have an account? Sign in here.
Sign In Now