fairy nuff, but my own understanding of turbo engines is that for the little power increase just upping your boost by 6 psi gives its not worth the effort. But each to there own and again I know nothing.
fairy nuff, but my own understanding of turbo engines is that for the little power increase just upping your boost by 6 psi gives its not worth the effort. But each to there own and again I know nothing.
Kev Davies (Village Idiot)
1999 Galant estate Purple Grey
WITH
White engine bay
K+N
Rimstock wheels with hedge seeker tyres
Lowered on Spax springs and VR-4 shocks
VR-4 Subframes and roll bars and Chassis brace
fail lift front bumper
vr-4 skirts
AND NO FECKING POWAH
AND I STILL MISS MY SUPER
Thing is, 6psi is more than enough to make your car go bang!
For an additional 6psi of boost, you could get a peak power increase of a single horsepower but your car could now run like a bag of spanners! If your combined components cannot handle the 6psi efficiently, there is no point in having the 6psi is there? By all means, feel free to ignore the advice, but these things have been tested time and time again.
1997 Mitsubishi RVR HSGR : 2.0 4G63T, 4 seats and the seating position from a truck
2009 Ford Mondeo : 2.2TDCi, 4 wheels, some plastics, some metal and some seats
Former owner of The Mongrel (RIP 2011) and The Rednum (RIP 2014)
i never said i was ignoring the advice atik, its just that i have worked with turbo engines petrol and deisel all my working career, and I am proficient in tuning engines. Horses for courses mate. Maybe prevention is better than cure its just my opinion doesnt conform to the cliques yet again
Thats what it is! The recommendation is that prevention is better than cure. A set of 7 series plugs for £40odd and the few hours to replace them? OR fix a broken engine cos the extra boost couldnt be handled by the current components?Originally Posted by steelie600
Call in an electrician to fix the damaged light fitting? OR attempt it yourself, get electrocuted, short out the electrics in the house, then call the electrician in?
Originally Posted by Atik
Thank you, this is the sort of info I was after.
Looks like I'll be fitting a boost controller sometime soon
Chiro: Maybe fit a boost controller of some kind (and boost gauge too preferably), organise a dyno and then put your car on with stock boost and do a couple of runs with continued increase in boost until you hit fuel cut - then you will see what a difference (in HPatw) terms it makes.
This thread is amazing. Truly amazing.
Chiro, as Atik says, 6psi is a fairly hefty increase, and as such will transform the car: you're moving into the peak efficiency range of the turbos, which means a LOT more flow, decent temps and a lot more "area under the curve" on the dyno, which in turn makes a much faster car.
Atik, a couple of (minor) corrections:
7's are a colder plug than 6's. I'm nit picking, though!
Whilst an MBC and an EBC will give you very similar results, the general advantage of the EBC (and the reason it's about £150 more expensive) is that you can adjust the curve to get MAX boost without peaking for as long as possible. A mechanical controller tends to overshoot a little, and then fluctuate around the target a little more.
Again, I'm being nit picking.
Steelie......you run 6's and you might be fine. Of course, if you're NOT fine you'll end up with a misfiring bag of nails that's nasty to drive, and over heat your plugs and have to change them all anyway. Unless one of them fails and drops it's anode into the bore whilst the engine is at 5000rpms. That can be considerably more expensive than upgrading the plugs to start with.
Frankly, it's not "your opinion differing from the Clique" in this instance: your opinion was simply straight wrong. It's no more prevention than putting in the right oil or fitting strong enough big end bolts.
Last edited by Turbo_Steve; 17-02-2010 at 12:05 AM.
Turbo_Steve > < ME
I knew they were one way or the other
i changed my plugs to a grade colder before i even upped the boost.....i thought everyone did!
LOL @ Atik.....I still can't see the logic in it.
Colder plugs...run..hotter cylinder temps? Right? ARRGH!
LOL, see your technical knowledge is so much better than mine! I was just trying to make my point and got it the wrong way round, so sue me! At least I dont ride a pushbike with a basket on the front
So new sparks before upping the boost then, got some quite useful infomation in the end
Yep, get some new plugs and get the car serviced and all oiled up with good spec oils etc. Then you can start playing with power mods without worrying too much of running 'cold plugs in a hot cylinder'
Of course you know its harder to call an electrician in if you are dead!Originally Posted by Atik
'97 EVO 4 GSR