JMC's 1.9l G60
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James H
ctwg60
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dirtytorque
junkie
mic_VR
mrbeige
jmc
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OddUnit :: The Workshop :: Projects
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Re: JMC's 1.9l G60
I don't really know what to make of your results. Hmmm! How is your airbox modified? Is it really loud?
ctwg60- .:Stroked:.
- Number of posts : 770
Re: JMC's 1.9l G60
It is louder than standard but not hugely so, and attached is a pic (although I have been running a paper filter for ages).
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jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
Just scanned trough Jezza's thread on CF and he tried a number of things to get more power, larger diameter exhaust, methanol injection etc but as you say found power from more free air!! I think I'll be buying a a 2nd airbox to play with.
ctwg60- .:Stroked:.
- Number of posts : 770
Re: JMC's 1.9l G60
That makes sense that you get a good chunk of torque at top end Jonathan: Prodigal has done the same thing on his G60 and he says it pulls better top end too. His is standard apart from a small pulley and possible Stg 4-ness.
boost panda- .:Bored:.
- Number of posts : 307
Re: JMC's 1.9l G60
Yeah just as I expected really, the gains are all at the top end. Good work though! More people should do what you do rather than taking peoples' word for it!
Nice chop job! Unfortunately it does let a lot of crap in from the wheel arch, which is the pain to balance the pleasure
Nice chop job! Unfortunately it does let a lot of crap in from the wheel arch, which is the pain to balance the pleasure
kevhaywire- .:Stroked:.
- Number of posts : 605
Re: JMC's 1.9l G60
Found your air filter test on CF weird the paper filter out performs the KnN Filter. I'll be swapping that as well at head swap time. Good Work!
ctwg60- .:Stroked:.
- Number of posts : 770
Re: JMC's 1.9l G60
I've found with mine it's not too bad Kev - I even have a tube coming up from behind the lower grill. Even with that, after nearly a year the air filter still looks pretty good.
I must admit that was an odd one CTW - although it something Darren had mentioned to me. He was always adamant that the standard paper filter was better than the K&N panel filters for the G60. So as I had both I tried it, and yes it seemed to be right. To be honest my K&N was not new/perfectly clean, but even so the difference was pretty striking.
While I was at SRR we did a bit of a naughty experiment as well (never to be repeated) - no filter but with the standard airbox. I made virtually no difference, showing how good the paper filters do flow.
I must admit that was an odd one CTW - although it something Darren had mentioned to me. He was always adamant that the standard paper filter was better than the K&N panel filters for the G60. So as I had both I tried it, and yes it seemed to be right. To be honest my K&N was not new/perfectly clean, but even so the difference was pretty striking.
While I was at SRR we did a bit of a naughty experiment as well (never to be repeated) - no filter but with the standard airbox. I made virtually no difference, showing how good the paper filters do flow.
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
jmc wrote:While I was at SRR we did a bit of a naughty experiment as well (never to be repeated) - no filter but with the standard airbox. I made virtually no difference, showing how good the paper filters do flow.
Wow! So I wonder if that is because of the airbox restriction or was it cut then during that experiment? Do you get a discount at SRR or do you pay in kind!
ctwg60- .:Stroked:.
- Number of posts : 770
Re: JMC's 1.9l G60
ctwg60 wrote:jmc wrote:While I was at SRR we did a bit of a naughty experiment as well (never to be repeated) - no filter but with the standard airbox. I made virtually no difference, showing how good the paper filters do flow.
Wow! So I wonder if that is because of the airbox restriction or was it cut then during that experiment? Do you get a discount at SRR or do you pay in kind!
LOL
dirtytorque- .:Charged:.
- Number of posts : 1101
Re: JMC's 1.9l G60
ctwg60 wrote:jmc wrote:While I was at SRR we did a bit of a naughty experiment as well (never to be repeated) - no filter but with the standard airbox. I made virtually no difference, showing how good the paper filters do flow.
Wow! So I wonder if that is because of the airbox restriction or was it cut then during that experiment? Do you get a discount at SRR or do you pay in kind!
Arf arf.... No I had 2 airboxes - one cut and one completely original, so I was just swapping them over. Did cut with filter, then uncut with filter, and then uncut no filter. Basically no difference between uncut with and without filters.
Anyway all thats a bit academic at the moment. Just tried fixing a 'small oil leak' from one of my senders on top of the oil filter bracket. I now have a split oil filter bracket and have just had a tow to the garage. I'm hoping the oil filter brackets are still available
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
We have 2 G60 blocks here if you need a bracket FOC. I'll see if it's in good nick.
boost panda- .:Bored:.
- Number of posts : 307
Re: JMC's 1.9l G60
Thank Jon. I managed to get it to my garage tonight and they will let me know tomorrow whether they can get the part. If I'm struggling I'll let you know
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
Only about 220bhp on the roller Stu. Strange given we had got 248 at Stealth 4 days previous, with no obvious difference with the performance. It does feel a bit weird since the remap though - running rich (plugs were black even after a few days), and idle dropping very low. Didn't notice it at the time but it has started to play up when cold. Vince is sending me over a copy of my previous map so I can swap it over and see whats going on (just to make sure it isn't something else). Very puzzling though, since as far as I can tell the idle shouldn't be affected by the remap.
There was one major improvement though. Since the last run (and as part of the remap) I've rerouted the isv into the inlet pipe, as I'm trying to track down where my missing boost has gone. Either doing that or the map has cured my weird drop in mid range torque I used to see after the 1st run on the rolling road. Given the number of remaps it's had in the past, none of which has cured the torque drop I am more inclined to believe it's the isv reroute than the remap that has cured it. Also the big exhaust gained me nothing on the remap. Looks like 2.5" on even a wildly tuned G60 is a bit of over kill.
There was one major improvement though. Since the last run (and as part of the remap) I've rerouted the isv into the inlet pipe, as I'm trying to track down where my missing boost has gone. Either doing that or the map has cured my weird drop in mid range torque I used to see after the 1st run on the rolling road. Given the number of remaps it's had in the past, none of which has cured the torque drop I am more inclined to believe it's the isv reroute than the remap that has cured it. Also the big exhaust gained me nothing on the remap. Looks like 2.5" on even a wildly tuned G60 is a bit of over kill.
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
just sounds like ye-olde blue temp sender to me mate.
telling the ecu the car is colder than it is.
ISV still buzzing away?
telling the ecu the car is colder than it is.
ISV still buzzing away?
dirtytorque- .:Charged:.
- Number of posts : 1101
Re: JMC's 1.9l G60
I have to agree with Rob, sounds like a suspicious temp sender.
I'm a little surprised about the exhaust though, I'd have expected that to make at least some difference.
I'm a little surprised about the exhaust though, I'd have expected that to make at least some difference.
Re: JMC's 1.9l G60
Hmm, thanks guys, will check tomorrow when I swap the map back to the old one (when everything did work normally). If it is something like that it is a massive coincidence.
Yeah I was surprised by the exhaust too. With my system didnn't seem to make a difference. Vince did mention that the injectors were pretty much maxed out again at the top end, so maybe that was holding it back. He really, really didn't want to concider using the 440's though....
Yeah I was surprised by the exhaust too. With my system didnn't seem to make a difference. Vince did mention that the injectors were pretty much maxed out again at the top end, so maybe that was holding it back. He really, really didn't want to concider using the 440's though....
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
jmc wrote: Vince did mention that the injectors were pretty much maxed out again at the top end, so maybe that was holding it back. He really, really didn't want to concider using the 440's though....
why?
Did you not ask?
dirtytorque- .:Charged:.
- Number of posts : 1101
Re: JMC's 1.9l G60
dirtytorque wrote:jmc wrote: Vince did mention that the injectors were pretty much maxed out again at the top end, so maybe that was holding it back. He really, really didn't want to concider using the 440's though....
why?
Did you not ask?
It was because of trying to get a stable idle out of them - he thought they were just too big for the engine size and the amount they would be flowing when on tick over.
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
Yeah, but a slightly lumpy idle is much better than a lean top end, surely? What size injectors are on there at the mo? 360cc?
Re: JMC's 1.9l G60
i'll post a video of my idle if you like.
rock.
Solid.14.5-14.7 afr.
2.3 msec pulsewidth which is fine.
More than enough time for the injector to open properly.
ta.
idles at about 950-1k
rock.
Solid.14.5-14.7 afr.
2.3 msec pulsewidth which is fine.
More than enough time for the injector to open properly.
ta.
idles at about 950-1k
dirtytorque- .:Charged:.
- Number of posts : 1101
Re: JMC's 1.9l G60
mrbeige wrote:Yeah, but a slightly lumpy idle is much better than a lean top end, surely? What size injectors are on there at the mo? 360cc?
Red tops on there at the moment - 315 (or 325) from memory.
Thanks DT, but don't worry about the video, if you say it can be done, I'm sure it can be done. From the way he was talking about it, he would rather have removed his own bits with a rusty knife than fitted the 440's. Personally I would like something in between if needed though (something around 360 would be ideal) as a 30% increase in size seems huge.
jmc- .:Bored:.
- Number of posts : 271
Age : 51
Location : Egham, Surrey
Re: JMC's 1.9l G60
If you were already running 360s then the 440s would be the natural step up, but the 360s would defo help the top end. That may be what's holding you back a bit.
Do all G60s idle that high?
Do all G60s idle that high?
Re: JMC's 1.9l G60
It's just where I have set mine.mrbeige wrote:
Do all G60s idle that high?
My standard one doesn't.
about 750-800 I think.
Well If he is not comfortable doing something you have to respect that,if you can get something inbetween then great.
dirtytorque- .:Charged:.
- Number of posts : 1101
Re: JMC's 1.9l G60
I'll be fitting lucas/denso type 440cc injectors when I change the head I'll report back on the idle. I've looked at some brake specific fuel charts and 440cc with an FI intercooled 4 pot should be good for about 270bhp on 3 bar @ 90% duty cycle so 80% which is the safest duty cycle would bring that down to around 250bhp. My car been dynod at 230bhp and 216bhp and the injectors where said to be about done on 3 bar. I'll be changing the fuel pump just incase it's weak.
Thing about changing injectors is he would have to do an entire remap of every cell rather than just tweak the existing map! Or maybe he is right and the green top bosch injectors would be bad/ I really don't know!
800rpm is stock idle.
Thing about changing injectors is he would have to do an entire remap of every cell rather than just tweak the existing map! Or maybe he is right and the green top bosch injectors would be bad/ I really don't know!
800rpm is stock idle.
ctwg60- .:Stroked:.
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