Shine

Gentlemen
I almost believed it's one shot event.......
The feul indicator worked fine these days, the mechanic examined the "3rd generation" feul pump,better coverage of the
floating sensor with gold coating junction.
Today I read 3/4 full of tank from the indicator,it confused me again.
it should be much less than that, so I went for gasing my car.
47 liters filled out of 63 liter full tank !!!!!

Left 1/4 tank to me, and showed me 3/4 full ?!
I'm going to tell my dealer & ask for a new one replaced.

Shine

The shop recalled my car.
Kleemann got a tricky to improve the boost of feul pump
said,it increases from 6 bar to 8 bar
I'll drop my car a few days later.
Anyone here measure the boost of your feul pump ?

nong

Will appreciate it if you could let us know how Kleemann's "trick" work

Thanks

Shine

Nong
I was told thru the phone
a feul pump (or any pump) designed a release valve to control
the desired pressure,if you "limit" that release valve, the boost is up
That's a simple way, trick.

Shine

The Kleemann finished my recall.

(1) Feul pump is now able to boost over 7 bar
vs 6 bar before recall.
(2) Coolant temp. reads 90 Celcius
Full throttle my car and watch the digital reading of temp
jump to 96 C, as soon as I easy my car, the reading down
to 90 C very quickly, the efficiency looks good !
A friend's V6 Kleemann S/C is unable to cool down as efficient
as mine, I'm not sure if it's the baseline between V6 & V8.

nong

Congratulations

Pls let me know:
(1) Is Kleemann still using the "rising-rate" regulator to boost up the fuel pressure ??
(2) Did Kleemann change the stock fuel pump for your car ??
(3) Are you still hearing the SC's whine at idle ??

(4) Did Kleemann adjust the resistance back to stock after the recent fuel pump modification ??


Thanks

Shine

(1) The trick is "block the release valve" of feul pump,excessive
boost can't be released then.
(2) Keep the stock pump.
(3) Yes, whines in idle,The mechanic checked that, and concluded
it's "normal" ! Quite noisy to me !
(4) Keep the setting, the resistence has a wide scale, can't tell
the difference if you only adjusted a little.

nong

Thank you

Sleestack

It shouldn't whine at idle... I haven't heard a Kleemann SCed car that does... hmmm.

Shine

I'll keep complaining to the Kleemann agent here.

linh

That's is an old trick which i did in the old day the same way by plugged the fuel pressure regulator vaccum hose, therefore,no fuel can be return which in turn, created higher fuel pressure. It work, but long term, the fuel pump won't last. If i was you, i would install fuel pressure gauge to monitor your fuel pressure at all time because if that pump suddenly stop working or get weaker, your engine could run very very lean and you don't even know it. By the time you find out, your piston is melted or engine head cylinder is cracked. Does it sound like it happen to me? Yes, it did happen to me with my Toyota Celica ALL-TRAC Turbo.

Just ask yourself this question? Why is there a release "valve" on Turbo/SC? To release the accesive pressure when the "throttle" is close. The release "valve" fuel return work the same way. You know what happen when pressure is trapped, something is going to give in soon or later my friend.

Shine

Linh, thanks for ur advice.
I tested my car this evening,pulled it to 160 mph(pcs of cake for 500 hp) then checked the coolant temp, digital reading from the conditioner 92-> 89-> 84 C very quick time of cooling
while 90~92 C is the normal working temp.
I'll monitor it thru the digital reading of temp these days.
By hard acceleration again & again, to see if any overheat found
in my car.

p.s Oil cooler is also equipped in my car by the time kleemanized.

linh

[QUOTE]Linh, thanks for ur advice. I tested my car this evening,pulled it to 160 mph(pcs of cake for 500 hp) then checked the coolant temp, digital reading from the conditioner 92-> 89-> 84 C very quick time of cooling.

Shine,

What i told you in my last post is a totally different thing then just monitor your engine temp to make sure everything is running fine. You can have an engine "detonation" due to drop in fuel pressure and the engine temp is showing normal. That's how fast your engine can be destroy before the engine temp pick up the true reading. Trust me, i since my ALL-TRAC Turbo and my M3 engine temp was showing normal went my ALL-TRAC Turbo black smoke coming out of my exhaust (melted one piston) and when my M3 head cracked but there's no sign of engine running hot.

You can check the coolant temp inside the car? That's cool. But seriously, i don't care how fast the engine can cool down. The most importance thing is never let the engine run hot in the fisrt place because it does not take long once the engine get to that hot point to melt piston and crack head. If your engine temp reading it true at 92C then you should be Ok.

Shine

Linh, I'm aware of those analog thermometer in the console
they're not "sensitive" at all, always post you the reading unchanged and very rough scale to tell you how exactly the temp is ? over 80 the next indicator is 120, you've to guess the temp
is somewhere between 80 ~ 120 C......
I happen to know the digital reading from the conditioner
much more accuracy, it tells you 90,91,92 ....exact numbers
I'm now count on it.
A friend put a sensor to read temp of exhaust, that's the temp
directly from engine, 870~930 C for an Mercedes V6 while
coolant varies from 90~100 C.
Well, as you said, a little more overheat found in the reading of coolant, for example
108 C may probabily reflects 1000 C in the engine and that's heat enough to melt everything, pistons, crank.....
I enjoy discussing with you, thanks for any opinion.