[Damo]

Quote: Originally Posted by 1320autos (original)

The spreadsheet is showing the following values at each rpm.

Ignition Timing; your ignition timing

Boost pressure; is in KPA 100KPA is 14.5 psi so if you insert column in row G and add this formula in the formula bar =SUM(F7-100)*0.145 then you'll see that you made 16.92 psi @ 6753

Intake Air Temp; is what your map sensor is telling the ecu the temp is in your intake manifold usually after 50ish degrees the ecu will start pulling timing out.

Cheers So I'm assuming the timing figures show everything is okay to? But then you say never assume anything

[MINI-Morgan]

-100? is that ambient Kpa at your workshop 100kpa?

Dont suppose you did any wideband logging?

I was expecting a little more advance on the ignition. Have you logged any preface lifts and seen higher?

[1320autos]

Most std headed will see this ssort of timing on a stock map, though when a good cylinder head goes on we see 28-30 at the top end, I would believe this more a result off the combustin chambers being smoothed off all its sharp edges and less chance of the engine detonating.

Until someone put a stock head with polished and smoothed chambers who knows for sure

[Rigsey]

Quote: Originally Posted by alski (original)

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

Its interesting how much difference the manifold makes to shifting the peak torque lower down the rpm curve; me 191.2 @ 4638rpm and Alski 187.6 @ 5909rpm

I know each car is different but thats some change....

[-G-]

Quote: Originally Posted by alski (original)

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

Ive got the Janspeed manifold and high-flow cat on mine at the moment along with a Milltek exhaust I bought from Luca and its bloody loud mate haha
In fact its so loud its coming off today and the JCW item is going back on!

[Damo]

Just the JCW Cat back is going back on or the full Mani and cat back?

Would of loved the Miltek but not anytime soon as can't afford out

Sure someone will bite your hand off for it though

[-G-]

Quote: Originally Posted by Damo (original)

Just the JCW Cat back is going back on or the full Mani and cat back?

Would of loved the Miltek but not anytime soon as can't afford out

Sure someone will bite your hand off for it though

Just the JCW cat back was put back on today mate! Left the Janspeed Mani & High Flow Cat on. Not driven the car yet so not exactly sure how much difference its made to the noise!
To be honest I wasn't happy with the fit of the Milltek anyway due to the rear bumper being different on my GP than a normal Cooper S.
Keep your eyes open for a Milltek Cat Back System & a Janspeed De-Cat Pipe in the classifieds sometime soon haha

[alski]

[quote=alski;3343264]july 05 build mcs- [nb gently run in + additional mid service oil change] by me from new
summer 06 GTT220+ kit inc optimised bypass valve + high temp iridium sparkplugs + GTT 17%supercharger pulley + shorter 'stickier' drive belt + GTT twin bearing idler pulley. + GTT 'cold ram' induction kit
spring 07 uprated intercooler fitted
autumn 07 BBK + belt change + milltec cat back

nb, still using std manifold, std map and injectors, ie no other performance mods...
- running tesco 99 + 1/2 tank v-power every other month [ dont ask why ]

today milage at 28k service now due at bmw [oil + filter] mostly daily driver with 15 miles motorway each way, not thrashed untill up to temp, chrono pack gives me oil and water temps
near enough + oil pressure

damo not had chance to check tyre pressures so no idea yet on loss on rundown
quote]

my ebay tyre guage cost 3.00, got 2 but other one never worked, says 31psi in fronts, 215/40 tyres, avon zz3, newish about 2k on them max....

paul will have to say if sigificant or otherwise for run down?

[Richard Crofts]

Quote: Originally Posted by -G- (original)

Just the JCW cat back was put back on today mate! Left the Janspeed Mani & High Flow Cat on. Not driven the car yet so not exactly sure how much difference its made to the noise!
To be honest I wasn't happy with the fit of the Milltek anyway due to the rear bumper being different on my GP than a normal Cooper S.
Keep your eyes open for a Milltek Cat Back System & a Janspeed De-Cat Pipe in the classifieds sometime soon haha

Be minful. Bhozar has had a lot of issues with big back pressure off the JCW exhaust breaking joints and gaskets on his set-up. I think he even broke his manifold a few times too.

I have had issues with big back pressure too and have also noted lots of leaks that come and go, and broken and burned gaskets... also i defo broke my manifold!