who said it did...about 11% loss between both sets of figures....low for a fwd car i know...but hey...both sets of figures on same rollers, same conditions.
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few problems just had my car itb'd
- Thread starter Nick r26r
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who said it did...about 11% loss between both sets of figures....low for a fwd car i know...but hey...both sets of figures on same rollers, same conditions.
andybutlers
ClioSport Club Member
Focus rs, Audi, Clio
my cars a phase two and is a ripper paul haha.. my 205 was def alot quicker than nicks and quicker than my cup. Apparently nicks clio is 30bhp more now and yet my slower car is still pulling away it doesnt work out
Adey.
ClioSport Club Member
err u did there? Unless I'm not understanding what ure saying
It's great to see you're making such an effort to get this sorted Matt! Don't know why you seem to be getting so much of a flaming. Hope its sorted easily
Hi chap, its all aprt of the plan to get it running spot on!
Don;t think theres too much flaming, alot of people on here are very helpful, and some just don;t seem to know what they're on about lol!
Matt
lift number 1 @ btm
You're saying that the difference between fly and wheel is the trans losses, and is completely seperate to the map?
Makes sense to me.
You're going to have a hell of a job setting the timing with a DTI, the cams fall out when you remove the cover...
I'm sure the VVT actuator should click, have you tried measuring it's resistance?
I'm sure the VVT actuator should click, have you tried measuring it's resistance?
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Adey.
ClioSport Club Member
Yeah, the more power you have the bigger the losses but the map makes no difference to this flywheel @ the wheel figure wether it be a good or poor map
Havent tried measuring its resistance, but it is drawing current according to our scope. No audible click, will use the steth tomorrow...
In that case, Danny has timed the enginewith his renault tools to be as per OEM, and we have lost 50bhp... arghhh! lol
Plus if you look at thre torque curve on the graph (or any of my graphs) you will note that I can indeed, map an engine (6 years of doing so which among the masters isnt alot, but its alot more than most!!)
But yes, the flywheel power is worked out by the dyno, using principles such as SAE80DIN to give a percentage loss. A crap map or a good map will give the same differences between the two...
Only the really good mappers can reduce the transmisiion losses with a laptop, thats usually done inbetween fitting cams to RX-7s, and gasflowing the pistons lol
Matt
I think it'd be tempted to pull it out.
from the manual:
The camshaft phase shifter (1) is located on the inlet camshaft. Its role
is to alter the timing pattern. It is controlled (to operate or not) by the
injection computer via a solenoid valve (2) on the cylinder head cover.
The solenoid valve is closed at rest. It authorises
the passage of oil to control the phase shifter in
line with the operation of the engine:
- if the engine speed is between 1,800 and
6,500 rpm,
- if the throttle potentiometer is not at no-load.
WARNING: if the solenoid valve is jammed in the
open position this will result in an unstable idle
and the pressure in the manifold at idle will be
too high.
NOTE: to replace the solenoid valve seal, refer to
the procedure descried in section 11 "Top and
front of engine".
I think my next port of call will be catcams on monday.....
Adey.
ClioSport Club Member
Pmsl, ported pistons
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lift number 1 @ btm
That's what I mean. It doesn't make sense!
I'm meaning the 422's need verniers, I think the 428's should be fine on normal pulleys.
Hopefully Cat can shed some light.
lol you must of fitted a few cams to RX-7s? All the best tuners are nowadays.... I only say this as I have actually had a young chap ask me what sort of cams are available and the expected gains!! Oh dear.....
Thanks for the input, roll on Monday! I too am intrqigued by this little french two litre four pot!
so a car going in with 250 bhp at the wheels...and coming out at 270 makes no diff to the actual flywheel figures??
i see. the map miraculously just gets rid of transmission losses.??
lift number 1 @ btm
I think you are both making the same point.
As in the ratio won't change. for more power you will have more losses, but it will still be the same scale.
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it's not as simple as that, it isn't a straight ratio
lift number 1 @ btm
Really? What else is going on there?
I'm actually interested.
That was what they were both trying to say though.
Jap Shed
only 100 less than KTEC for a conversion
Ktec is plus fitting as well.
going of topic a bit here, but this kind of points you in the right direction:
http://www.max-boost.co.uk/max-boos...wer - engine dynos and rolling road dynos.htm
One more thing to think about, you've no doubt seen a RR printout showing power at wheels, coastdown and by adding the 2 together a calculation of flywheel power. Look the coastdown curve, does it look like a percentage of anything?
182cup & 172 racecar
http://www.max-boost.co.uk/max-boost...ad dynos.htm
I have just read all that,it was like talking to Matt at TDF,very interesting.
I have just read all that,it was like talking to Matt at TDF,very interesting.
Hi chaps,
Well we've bneen a bit manic as we have a drift car and a kit car to finish building for japfest this weekend. Nick, I did get a missed call from you, best thing is to ring the office (01373 30 30 33) during working hours!!
I've spoken to GMC and they have confirmed stock timing for these cams, so I'm going to try a few things out now we have confirmed cam timing and compression are A-OK.
Roll on 200bhp
Well we've bneen a bit manic as we have a drift car and a kit car to finish building for japfest this weekend. Nick, I did get a missed call from you, best thing is to ring the office (01373 30 30 33) during working hours!!
I've spoken to GMC and they have confirmed stock timing for these cams, so I'm going to try a few things out now we have confirmed cam timing and compression are A-OK.
Roll on 200bhp
No worries mate, we just literally had the MOT bay arrive today, so its a bit mad at the mo. Danny popped in again and he too was scratching his head (and hes the renault master!) I'm sure he wil be online to post up his thoughts...
await matts reply , not 100% sure what he said exact as i was at work ...
lift number 1 @ btm
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