[blaze6]

Quote: Originally Posted by k-huevo (original)

That inlet temp is not too outrageous for this combo on a dyno and the GP IC is far from inadequate. Reported boost is on the high side for a 19% equipped Eaton M45, so I think perhaps the head is not flowing well and/or the exhaust side is isn’t up to the task. The mention of lean A/F was probably giving the most cause for concern here. The OP has decided to try a marginally larger pulley, but it also will not perform optimally without addressing downstream inefficiencies; don’t get hung-up on the 19%’s IAT as the root issue, I’ve experienced very good performance in the past with a 19% despite much higher peak IAT than mentioned here. Of course a proper tune with appropriate scaling for the injectors is beneficial. Can fuel quality be ruled out in this case?

only ever run tesco 99 - 99 octane / shell 97 octane

[blaze6]

paul took the car for a spin today, low down torque he said "wasn't quite right" so they're going to check the cat & compression test the engine. interms of IAT's temps were below 50 celsius up to 5000 revs. over 5000 they were hitting 69 celsius by 7000 rpm. no afr readings unfortunately but he did say power significantly dropped off over 5000revs. so car was probably leaning out/timing retarded. i'm thinking bigger injectors and cleaning the intercooler. then see what's happening to IATs and get the fuel mapping looked at as some have suggested. gt tuning have mentioned a fuel pump regulating mod which apparently gives a smoother delivery, richer fuelling and helps protects the engine at higher revs- anyone had experience of this? as far as injectors go, anyone know if gt tunings 440cc injectors are an different from those supplied by 1320autos/jan? ...just wondering, i know they're both 440cc injectors by bosch, is one a more recent model???.....
speaking to a couple of tuners, opinions are actually consistent on a few things which helps.

[blaze6]

having spoken to a few tuners,
i suspect i'm heading for bigger injectors plus :-

either what gt tuning suggest - automatic fuel pressure regulator as a start point

or what 1320 autos suggest - a remap with 17% pulley.


if this isn't enough, what makes the 17% pulley more expensive is that i would need to buy a new supercharger. as the present 19/?20% pulley just won't come off that easy - gt tuning had one and they had to cut it off! so possibly a new intercooler-may be cheaper- but not enough.

fitting new supercharger+ pulley=3-4 hours labour + supercharger(£200) + pulley (£120) which i have but was going to sell on. ?£500

custom remap - £340 from 1320autos

injectors from jan:- £220 +vat
total:£1000+

alternative:
gtt: 440cc injectors+AFPR+live testing of AFR/AITs = £540


plus or minus the cost of the intercooler- prob GRS - £400 & 17% pulley anyway (£500)

so i'll probably spend the same amount either way.

SO I'M FEELING BUGGERED

COSTS SO FAR:

DYNO:£40
COMPRESSION TEST:?£25-30?? (if i'm getting 19psi it's highly unlikely i've got an air leak)


OTHER POTENTIALS: NEW CAT BACK - MILTEK £400 OR GET SOMETHING ELSE.

[Bhozar]

I have the GTT AFPR and ThinkMini 450cc injectors. The car gos like a shot now.

I picked up a brand new in box supercharger for £150 on eBay. They do come up sometimes.

Sometimes a GRS comes up on the classified adds or eBay. Could be worth trying stuff before changing from the 19%. I imagine you will need an intercooler for a 19%, and it helps with any others too.

[blaze6]

okay, well i've made a decision:

step one: get bigger injectors (either thinkmini's 450cc injectors or gt tunings 440cc injectors) and an AFPR (again either from gtt or thinkmini i'm assuming they're the same product so i guess price is the key factor) thinkmini quoted £500 and gtt £540 this included setting up the car. monitoring AFR/IATs live

get my present intercooler cleaned, compression test the engine & check my belt isn't slipping. -the car has a modified cosworth idler and some kind of adjustment needs to be made when fitting a belt?not fitted properly.??? check the cat
fit performance cooper s radiator from minimaniauk - had other stuff on order from them which i cancelled and got this instead. -no extra money spent

step two:
drive the car with IAT & AFRs monitored and see what happens - hopefully i'll just need a custom map and won't need to upgrade the GP intercooler. I'll try and keep dynoing to a minimum because of the nature of the pulley i've got on the car.

hopefully then i'll be able to keep the my 19% (roland has measured bbr's pulley and apparently it's closer to 20%..... ) and enjoy some low end grunt and who knows, maybe some high end power too.

just need to figure out where to get the work done, i guess getting parts sent to 1320 will make the most sense? thinkmini and gtt are >100 miles from 1320 which is where the car is right now.

ps:it's hard work posting on 2 forums. what's the deal with that?

[Jaw_F430]

Quote: Originally Posted by sayanthan (original)

okay, well i've made a decision:

step one: get bigger injectors (either thinkmini's 450cc injectors or gt tunings 440cc injectors) and an AFPR (again either from gtt or thinkmini i'm assuming they're the same product so i guess price is the key factor) thinkmini quoted £500 and gtt £540 this included setting up the car. monitoring AFR/IATs live

get my present intercooler cleaned, compression test the engine & check my belt isn't slipping. -the car has a modified cosworth idler and some kind of adjustment needs to be made when fitting a belt?not fitted properly.??? check the cat
fit performance cooper s radiator from minimaniauk - had other stuff on order from them which i cancelled and got this instead. -no extra money spent

step two:
drive the car with IAT & AFRs monitored and see what happens - hopefully i'll just need a custom map and won't need to upgrade the GP intercooler. I'll try and keep dynoing to a minimum because of the nature of the pulley i've got on the car.

hopefully then i'll be able to keep the my 19% (roland has measured bbr's pulley and apparently it's closer to 20%..... ) and enjoy some low end grunt and who knows, maybe some high end power too.

just need to figure out where to get the work done, i guess getting parts sent to 1320 will make the most sense? thinkmini and gtt are >100 miles from 1320 which is where the car is right now.

ps:it's hard work posting on 2 forums. what's the deal with that?

Are you the first person to get one of these bigger rads? Would like to hear your thoughts on it once you have it fitted to see how well they cool

Try posting on 4 forums!! Its like deja vu all the time

[blaze6]

Quote: Originally Posted by Jaw_F430 (original)

Are you the first person to get one of these bigger rads? Would like to hear your thoughts on it once you have it fitted to see how well they cool

Try posting on 4 forums!! Its like deja vu all the time

possibly am the first person i think. - according to adam it's a "silent protector" i don't know if it's hocus pocus or not. it should help reduce cylinder head temperatures. i'm trying to do everything i can to acccomodate my crazy bbr 20% pulley.
will post once it's fitted and tested.

[roland2003]

Hi Sy, ...£450+vat (£528 inc vat).

[MINIMANIAUK]

I would suggest you replace the pulley - it could end up like trying to support a drug addict !

[MINI-Morgan]

Quote: Originally Posted by sayanthan (original)

okay, well i've made a decision:

step one: get bigger injectors (either thinkmini's 450cc injectors or gt tunings 440cc injectors) and an AFPR (again either from gtt or thinkmini i'm assuming they're the same product so i guess price is the key factor) thinkmini quoted £500 and gtt £540 this included setting up the car. monitoring AFR/IATs live

get my present intercooler cleaned, compression test the engine & check my belt isn't slipping. -the car has a modified cosworth idler and some kind of adjustment needs to be made when fitting a belt?not fitted properly.??? check the cat
fit performance cooper s radiator from minimaniauk - had other stuff on order from them which i cancelled and got this instead. -no extra money spent

step two:
drive the car with IAT & AFRs monitored and see what happens - hopefully i'll just need a custom map and won't need to upgrade the GP intercooler. I'll try and keep dynoing to a minimum because of the nature of the pulley i've got on the car.

hopefully then i'll be able to keep the my 19% (roland has measured bbr's pulley and apparently it's closer to 20%..... ) and enjoy some low end grunt and who knows, maybe some high end power too.

just need to figure out where to get the work done, i guess getting parts sent to 1320 will make the most sense? thinkmini and gtt are >100 miles from 1320 which is where the car is right now.

ps:it's hard work posting on 2 forums. what's the deal with that?

You need a complete health check really and you can defiantly trust Roland for that. You need get the CAT checked to make sure you havent melted it and thats whats causing your high boost and IATS. But at the moment your boost is too high for the fuel pressure regulator to adjust enough and the adjustable fuel pressure regulator and big injectors from Roland will sort that correctly and maintan the boost vs fuel pressure. 19psi with a flowed head is still suprising to me! Im sure you'll be sorted very soon

[blaze6]

Quote: Originally Posted by MINIMANIAUK (original)

I would suggest you replace the pulley - it could end up like trying to support a drug addict !

well, lets wait and see. i accept that with a 19% pulley the usable power is low down and i'm happy with that. this car is my daily driver and i don't have it over 6000rpm that often so i'm unlikely to see the inefficiency of the supercharger at the high end in real world driving except on the dyno.

as for superchargers getting knackered, i'll deal with it when it happens, i'm planning to have the oil changed on it every 30000 miles and hence the water pump will be inspected at those intervals.. - i had a word with stiegemeier who routinely service them in the states as well as rebuild and port them and they had no concerns about a 19% pulley on the M45 supercharger, only that maintenance is essential. they recommend oil changes on superchargers anything between 30-60000 miles depending on whether you have a 19-15% pulley. so i'll take my chances. when a supercharger does come up on ebay for a goodprice , i will snap it up and keep it in reserve.

my understanding is that SC's only get knackered if the oil levels go low./there's a leak. there are people who have run 17%/19% pulleys on NAM for 100000 miles with no issues! but i agree the chances of me having problems is potentially higher.

as i've said, get other potential issues with the car ironed out first, then if i need bigger injectors, i will be getting them, i think the AFPR is a nice touch. i'm going to be a stubborn ******* and see if i can hang on to the pulley that's already fitted if i can help it and lets see.....

thanks for all the advice i've received, you guys have been great!

[MINI-Morgan]

Also IAT temp, How was it measured?

[blaze6]

Quote: Originally Posted by MINI-Morgan (original)

Also IAT temp, How was it measured?

i don't know how they measured IATs, they had a probe in the exhaust. a laptop hooked up to my obdii port and i think although i'm not sure about this there was some sort of sensor in the engine bay.

[jhiggs26]

Has you car thrown any codes lately Sayanthan?

Have you changed your fuel filter yet?

Jeremy

[blaze6]

Quote: Originally Posted by jhiggs26 (original)

Has you car thrown any codes lately Sayanthan?

Have you changed your fuel filter yet?

Jeremy

my car (R53 post facelift) doesn't have a fuel filter as such, i got lohen to have a look at what was there and there a metal mesh of some sort which they have cleaned-there was a lot of crap in it. so that's been done. there isn't a fuel filter for my car - this is according to lohen. - are you saying there is? my car throws only one code and that's daily for the last few weeks - the code for exceeding the boost threshold - with the asc light staying on.

[MINI-Morgan]

Quote: Originally Posted by sayanthan (original)

my car (R53 post facelift) doesn't have a fuel filter as such, i got lohen to have a look at what was there and there a metal mesh of some sort which they have cleaned-there was a lot of crap in it. so that's been done. there isn't a fuel filter for my car - this is according to lohen. - are you saying there is? my car throws only one code and that's daily for the last few weeks - the code for exceeding the boost threshold - with the asc light staying on.

fault code P108 im guessing?? "Manifold pressure input to high"

Ummm so far as I know you have two saddle tanks with a level sensor in each side. Each level sensor also has another purpose e.g. one being the fuel filter and the other being the pump. On the pump side there should also be a gauze to stop the big stuff entering the pump.

[Lucky Dave]

Quote: Originally Posted by MINI-Morgan (original)

at the moment your boost is too high for the fuel pressure regulator to adjust enough and the adjustable fuel pressure regulator and big injectors from Roland will sort that correctly and maintan the boost vs fuel pressure.

Hurraar somebody who understands the boost vs fuel pressure issue!!

Good words Dave

[blaze6]

Quote: Originally Posted by MINI-Morgan (original)

fault code P108 im guessing?? "Manifold pressure input to high"

Ummm so far as I know you have two saddle tanks with a level sensor in each side. Each level sensor also has another purpose e.g. one being the fuel filter and the other being the pump. On the pump side there should also be a gauze to stop the big stuff entering the pump.

let me get this right - the fuel level sensors act as fuel filters as well and there are two?
how often would i need to change these if these are fuel filters.

lohen cleaned the mesh/gauze and felt this was the fuel filter.

[MINI-Morgan]

Quote: Originally Posted by sayanthan (original)

let me get this right - the fuel level sensors act as fuel filters as well and there are two?
how often would i need to change these if these are fuel filters.

lohen cleaned the mesh/gauze and felt this was the fuel filter.

I could be wrong but from when I was looking into my fuel level problem that vanished a while back I found out that there is a cartrige that inserts into each tank. One does the fuel level and filtering and the other is level and the pump. One filter, one pump. The pump has a mesh to filter out the larger rubbish in the tank.

Fuel Filter + level sensor: RealOEM.COM * BMW R53 Cooper S FUEL FILTER WITH FUEL LEVEL SENSOR RIGHT

Fuel Pump + level sensor: RealOEM.COM * BMW R53 Cooper S FUEL PUMP AND FUEL LEVEL SENSOR

[MINI-Morgan]

Quote: Originally Posted by Lucky Dave (original)

Hurraar somebody who understands the boost vs fuel pressure issue!!

Good words Dave

Thanks Dave Still piecing the MINI Ecu and fueling system together.