360 kms full tank? DC5S? tell me whats up

**Tofu** · 13-09-2007 09:16 AM

vtec doesn't engage properly when the car's not warmed up anyway.

**Dr.k20z1** · 13-09-2007 01:41 PM

ive realised that lately u need to warm the car up for a good 10 minutes b4 the vtec kicks in hard so yeah.. but im using 5th and 6th heaps now as soon as i hit 60kms im in 6th so yea.. and ive got 210 ks its its not even half tank yet, its actually half of half a tank so yeah im hoping to get around 500-600, i only got the car recently so yeah i didnt know much abt the gears and that and now noticed that changing b4 3000 revs is a good idea cos haha im gettin heaps of ks

wooooooooooo

cheers guys for the help

**Shraka** · 13-09-2007 02:06 PM

Umm... Vtec kicking in hard? It should just swap the cam or not swap the cam. There is no real middle ground. It shouldn't be hard or soft. Just there or not there.

You should be warming the car up at least until the needle is at the 'middle point' (it should be slightly below middle on a VTiR DC2) before you rev the engine. Before your engine is warm, the metal components are actually different sizes, and there isn't as much oil lubing the system. That plus 6500rpm = good way to stuff your engine.

**adis** · 15-09-2007 08:09 PM

I dont know what car you guys are driving but my car does 480 easy with normal driving, i think about 8.6L per 100KM. Very happy, and when you need a bit of balls, just extend the revs over 5000 rpm, and you are rokinn.

**yfin** · 15-09-2007 08:15 PM

Originally Posted by m0nk3y

my fuel light came on today at 490kms, so theres something going on on your car - eventhough mine is a dc5 lux, not an S, fuel tank size should be the same. Few squirts as well. maybe you're a leadfoot

I don't know how you can say something is going on with his car if you are comparing it to your dc5 lux with 118kw. The S and the lux may look the same and the fuel tank may be the same size but the engines are not the same specification. The ADR fuel test I can see for the lux is 7.6 combined and the Type S is 9.4 combined. Big difference.

**steebs** · 15-09-2007 11:52 PM

u guys are lucky,
just recently got a dc5r, mods are i/h/e+lighten flywheel+hd cltuch
fuel is shockin.
just did half a tank = 125km, this is shifting at 2500-3000rpm
tho this is on a stock ecu, aftermaket ecu is playing up atm, so waiting on a retune.

recently changed oil/oilfilter/plugs = no change
tyres are on 35psi all round (previous owner had put 225/50 on stock front ITR rims, dunno is this could be an issue?)

any ideas?

**bennjamin** · 16-09-2007 09:02 PM

up you PSI abit and see if that helps. deflated tyres will take 10-15% off your fuel economy

**XP02ED** · 17-09-2007 08:34 AM

Ok.. did 2 weeks of testing (1 week = 1 tank for me)

anywais i did a service..
Changed oil, filter, fuel filter, cleaning air filter.. then restarting ECU
Using BP Ultimate for both weeks.

1st week full tank till the lights came one.. i got 400kms.. driving hard.. and i mean hard.. ie vtecing every gear.. but not throughout the week..

2nd week.. full tank again... this time driving normal.. vtec occasionaly.. i hit 480kms till lights!

previously wasnt getting this much..

**m0nk3y** · 17-09-2007 08:59 AM

Originally Posted by yfin

I don't know how you can say something is going on with his car if you are comparing it to your dc5 lux with 118kw. The S and the lux may look the same and the fuel tank may be the same size but the engines are not the same specification. The ADR fuel test I can see for the lux is 7.6 combined and the Type S is 9.4 combined. Big difference.

i'm aware that the engines have different specs, the OP was asking how big the fuel tank sizes were, and i answered that in my post.

**mr_spook** · 17-09-2007 04:54 PM

Refuelling is a pain in the ass. I hate refuelling. Not because of the cost or anything, it's just a downright pain in the ass especially when you have to go round looking for fuel. I mean I love BP ultimate but I gotta drive round ages to look for one. So I take anything 98.

Anyway, I reckon you're not upshifting to the highest possible gear. Big differences when I just got the car and learnt manual when all I shifted to was about 4th. These days, I'm going 5th gear on about 60kph, 6th gear if I can be stuffed to do so. Also, make sure ur on highest gear anytime over 100 eg. like on Motorway. The gf can't seem to find 6th gear and the car keeps a constant 4000 - 4500 rev.

That or ur neighbour goes to ur car at night and siphons ur tank.

**Tofu** · 18-09-2007 09:53 AM

Originally Posted by Shraka

Umm... Vtec kicking in hard? It should just swap the cam or not swap the cam. There is no real middle ground. It shouldn't be hard or soft. Just there or not there.

not true for the K20 engines.
if you part throttle to vtec point (around 5600rpm) the vtec changeover is not as aggressive compared to if you were at full throttle.

**Shraka** · 18-09-2007 10:01 AM

Originally Posted by Tofu

not true for the K20 engines.
if you part throttle to vtec point (around 5600rpm) the vtec changeover is not as aggressive compared to if you were at full throttle.

Aggressive? I've never heard of a VTEC switchover point being described as aggressive. Unless you're just talking about the sound it makes? In which case of course at a half throttle position the amount of noise the lumpy cam will make.

If you want aggressive try driving a 14psi Supra RZ. Those turbos come on pretty damned aggressively!