[Aberdeen Al]

Quote: Originally Posted by Rigsey (original)

I agree, you probably have a noddy problem that a MINI specialist could find pretty quickly - not what you want here I know

Looks like I may not have a choice!

What would I need to specifically look at if I were to check the by-pass valve?

[Paul Webster]

Can the company you were using measure and record on the dyno sheet boost pressure, air fuel ratio, have they got a scanner that could read whatthetiming is doing??

What we have to remember that while fitting the head they could of solved your problem and that the head hasn't actually gained you much.

Did Janspeed give you an estimate of what improvement you should see?

[alski]

AL
if you got a head estimate i bet it was based on a std car or just with a 15% pulley
i would be surprised if anybody looked at Al's spec [as was] and promised to give an extra 20 more ponies [250hp?] happy to hear if any body offers this service

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

Can the company you were using measure and record on the dyno sheet boost pressure, air fuel ratio, have they got a scanner that could read whatthetiming is doing??

What we have to remember that while fitting the head they could of solved your problem and that the head hasn't actually gained you much.

Did Janspeed give you an estimate of what improvement you should see?

I've now got my car back - I may use a local guy to do the boost pressure & a/f ratio. I assume that this can be measured with a wide band thing? Can this be fitted to my GTT manifold?

The car didn't feel like it did approx. 6 weeks ago. Something has definitely happened because I felt the negative difference.

I based my figures on the GTT 250 package as that is what I have in essence.

[MINI-Morgan]

I would be expecting your 30-70 times to fall to atleast <5.8secs too

[Aberdeen Al]

Quote: Originally Posted by MINI-Morgan (original)

I would be expecting your 30-70 times to fall to atleast <5.8secs too

Ha ha ha - I wish!! Did a couple of runs yesterday best I got was 7.4 secs............although I did have a full tank of petrol and 2 x cylinder heads in the boot!!

[Paul Webster]

Quote: Originally Posted by Aberdeen Al (original)

Ha ha ha - I wish!! Did a couple of runs yesterday best I got was 7.4 secs............although I did have a full tank of petrol and 2 x cylinder heads in the boot!!

Thats because you've lost so much trq in the rpm range you use to go 30-70

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

Thats because you've lost so much trq in the rpm range you use to go 30-70

Yip - that as well!

[roland2003]

Hi Guys, I know for a fact the garage didnt mark up the chain & sprocket before removing from cam. Hopefully they,ve not put it back one tooth out.... that would move the power band for sure.
Whenever you use 3 or 4 brands of product and 2 or 3 tuners its pretty common for things to go wrong. Use one tuner, bring it back once a year for belt change & check up, and there will be no problems. Things that lose even alot of power (mostly stock parts failing) can be pinpointed and fixed easily and cheaply. I know its difficult for Al as hes a long way away.
We can supply a dash mounted boost gauge & pod, this is realy handy ,you know immediatly at any time if your down on boost or vacuum.
-Bypass valve leaking doesnt give a fault code btw.
Best Regards Roland GTT

[Loui]

Quote: Originally Posted by roland2003 (original)

Hi Guys, I know for a fact the garage didnt mark up the chain & sprocket before removing from cam. Hopefully they,ve not put it back one tooth out.... that would move the power band for sure.
Whenever you use 3 or 4 brands of product and 2 or 3 tuners its pretty common for things to go wrong. Use one tuner, bring it back once a year for belt change & check up, and there will be no problems. Things that lose even alot of power (mostly stock parts failing) can be pinpointed and fixed easily and cheaply. I know its difficult for Al as hes a long way away.
We can supply a dash mounted boost gauge & pod, this is realy handy ,you know immediatly at any time if your down on boost or vacuum.
-Bypass valve leaking doesnt give a fault code btw.
Best Regards Roland GTT

Mine which has got a number of different tuners an manurfacturers parts makes good power. Dont see how having to always take it back to the same person is always necesary tbh, as long as the people your using know what there on about

[Aberdeen Al]

Quote: Originally Posted by roland2003 (original)

Hi Guys, I know for a fact the garage didnt mark up the chain & sprocket before removing from cam. Hopefully they,ve not put it back one tooth out.... that would move the power band for sure.
Whenever you use 3 or 4 brands of product and 2 or 3 tuners its pretty common for things to go wrong. Use one tuner, bring it back once a year for belt change & check up, and there will be no problems. Things that lose even alot of power (mostly stock parts failing) can be pinpointed and fixed easily and cheaply. I know its difficult for Al as hes a long way away.
We can supply a dash mounted boost gauge & pod, this is realy handy ,you know immediatly at any time if your down on boost or vacuum.
-Bypass valve leaking doesnt give a fault code btw.
Best Regards Roland GTT

I'm aware of the chain & sprocket issue - I believe they set the cam / timing up to 114 deg which I believe is the setting for the Schrick cam. This was checked and ok'd by some Mini Cooper Challenge mechanic guru who they know very very well. I understand that it's not the same way as you would do it Roland but I appreciate the time and advice that you shared with the guys.

IF the chain was one tooth out I would assume that there would be more apparent problems than just the power and shifting?

All my parts except the throttle body and cylinder head (although from previous posts I see that you rate the Janspeed product) are GTT.

I have a boost gauge - unfortunately it's in a box on the garage floor - the joys of having a demanding job and a very young family tie up most of my time - never mind I'm sure I'll get it fitted soon!!

I really appreciate all the feedback / ideas that have appeared on the thread - although sometimes confusing (which I may add is down to my lack of knowledge) - it's good to know that people are willing to share their thoughts .

[MINI-Morgan]

Ooooo so you've done the cams tooo! Right... didnt know that! What is the power band for the new cams? 4K+?

I really hope you get this sorted soon so you can go back to enjoying it instead of trying to find problems. Should be a seriously quick MINI

[Aberdeen Al]

Quote: Originally Posted by MINI-Morgan (original)

Ooooo so you've done the cams tooo! Right... didnt know that! What is the power band for the new cams? 4K+?

I really hope you get this sorted soon so you can go back to enjoying it instead of trying to find problems. Should be a seriously quick MINI

The powerband seems to be around the +5k and it's noticeable but by then wife's Seat Leon FR TDi is gone - it now seriously kicks my MCS butt !!

I hope I get it sorted quickly too - my mpg when I drove to & from Knockhill today was calculated at 23.64 mpg - at a steady 70mph.

Never mind it's started to snow here in Aberdeen - that makes up for it all !!

[Paul Webster]

So you would burn 30 gals of fuel there and back coming to us then again you might go away with a lot more horsepower and torque than you've got now, but then again..................:

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

So you would burn 30 gals of fuel there and back coming to us then again you might go away with a lot more horsepower and torque than you've got now, but then again..................:

It's the "...but then again..."

[Ant FR]

get a trailer, bang it on the back, use the Leon Tdi, to tow it down to someone here and then take it home all fixed.

Christ knows what it will be like when you lot get the devolution you want, there will be broken down cars all over scotland......lol

[Aberdeen Al]

Quick update on my car problems!!

A fellow Mini2er (Martin Sullivan) plugged his OBD tool into my car and found 3 x faults:

1. P0304 - Cylinder 4 mis-fire
2. P0304 - Cylinder 4 mis-fire
3. P0420 - Catalyst efficiency below threshold (bank 1)

The fault codes were cleared and the ECU re-set - will check them again next week to see if they've re-appeared.

Car feels slightly better but not as smooth as it was approx. 8 x weeks ago.

Cheers,

Al

[roland2003]

Something is very wrong here. I realy think the cam is timed wrong. .....misfires (never had these codes unless the engines blown up)...and power coming in a t 5K.
The Shrick cam on our GTT250 has at least as much low end grunt as stock.

[Aberdeen Al]

Quote: Originally Posted by roland2003 (original)

Something is very wrong here. I realy think the cam is timed wrong. .....misfires (never had these codes unless the engines blown up)...and power coming in a t 5K.
The Shrick cam on our GTT250 has at least as much low end grunt as stock.

The cam was set up using the traditional method of TDC etc. as mentioned above it was set for 114 deg.

Is there any way of checking the timing easily / quickly?

[Aberdeen Al]

Quote: Originally Posted by Aberdeen Al (original)

Quick update on my car problems!!

A fellow Mini2er (Martin Sullivan) plugged his OBD tool into my car and found 3 x faults:

1. P0304 - Cylinder 4 mis-fire
2. P0304 - Cylinder 4 mis-fire
3. P0420 - Catalyst efficiency below threshold (bank 1)

The fault codes were cleared and the ECU re-set - will check them again next week to see if they've re-appeared.

Car feels slightly better but not as smooth as it was approx. 8 x weeks ago.

Cheers,

Al

OBD check done today again - no fault codes reported - I can only assume that these codes were recorded prior to my cylinder head / cam / injectors work. I'll keep an eye on them for the next fortnight or so.