Turbo Boost What Should happin?
Discussion
Gentlemen and Ladies,
As a new esprit owner i have many questions, most of which i have posted here. The response is brilliant..So firstly thanks to everybody who responds, it is very much appreciated.
Ok, business, I need some clarification here. I have a SE (H reg), The dealer who checked my car out explained to me that when the car is warm and idling the turbo boost guage should show a boost pressure. Now mine when warm sits on zero.
Following on from another enquiry regarding my clutch (finding it hard to find second gear), i purchased a braided clutch hose. I put the same question to the independent dealer and he said this was bulls&*t. He said in 2nd or 3rd at about 3500 RPM the boost should show a pressure. But when idling warm it should show zero.
So gents (and ladies) what is the story here... If it should be zero boost when idling warm and .5 bar at 3500 rpm great. If as it warms up the boost guage should rise to hold a pressure fair enough (mines not doin that and any suggestions).
Seasons greating to all
liam
As a new esprit owner i have many questions, most of which i have posted here. The response is brilliant..So firstly thanks to everybody who responds, it is very much appreciated.
Ok, business, I need some clarification here. I have a SE (H reg), The dealer who checked my car out explained to me that when the car is warm and idling the turbo boost guage should show a boost pressure. Now mine when warm sits on zero.
Following on from another enquiry regarding my clutch (finding it hard to find second gear), i purchased a braided clutch hose. I put the same question to the independent dealer and he said this was bulls&*t. He said in 2nd or 3rd at about 3500 RPM the boost should show a pressure. But when idling warm it should show zero.
So gents (and ladies) what is the story here... If it should be zero boost when idling warm and .5 bar at 3500 rpm great. If as it warms up the boost guage should rise to hold a pressure fair enough (mines not doin that and any suggestions).
Seasons greating to all
liam
Hi Liam
Boost is pretty much a factor of delta demand, i.e. when you plant the accelerator the boost will rise as far as possible and when idling there will be no boost. You can quite happily sit on the motorway at 80 and have no boost because you are at a constant speed, so no boost is required, i.e. it is NOT a factor of RPM. When I first got my last esprit I was a little confused by what was happening as well, and was always looking at the boost gauge but your dealer(s) should know what's going on, and it appears they are pretty clueless !!
Adrian
www.adrianmugridge.co.uk
Boost is pretty much a factor of delta demand, i.e. when you plant the accelerator the boost will rise as far as possible and when idling there will be no boost. You can quite happily sit on the motorway at 80 and have no boost because you are at a constant speed, so no boost is required, i.e. it is NOT a factor of RPM. When I first got my last esprit I was a little confused by what was happening as well, and was always looking at the boost gauge but your dealer(s) should know what's going on, and it appears they are pretty clueless !!
Adrian
www.adrianmugridge.co.uk
"..at 1/4 to 1/3 throttle you should have boost also." - This is not correct. Boost is a factor of acceleration, so if you floor the car then you will get FULL boost, but if you drive at a constant speed then you will get NO boost, regardless of how far open the throttle is. However, at higher speeds ( say 85ish ) there will normally be some boost all the time.
Adrian
www.adrianmugridge.co.uk
Adrian
www.adrianmugridge.co.uk
Thanks Lads,
I am a small bit pissed off to be honest, i spent over £300 to get my car checked out, by an independent dealer. now he told me the car was down on power, because the exhaust was blowing around the turbo gasket. He wanted £850 to do the work. So i asked a mate of mine who is really good mechanically to check it out (alot cheaper, and just as good). anyway he said he could not see where it was blowing. Now when i spoke to the independet dealer, i asked him was the visual evidence of the lack of power the fact that there was no boost registering on the guage (at warm idle), and he said it was. Buying a braided clutch hose last week, i spoke to a parts dealer down in devon about this and he said the guy was talkin complete Bulls%$t. Now my problem here as you can appreciate who do you believe? The view i have taken with my esprit is the parts are relatively cheap and cheerfull (GM parts) so if i can do it myself i will. Lets be honest £30-40 p/h ex Vat...opinions?
I am a small bit pissed off to be honest, i spent over £300 to get my car checked out, by an independent dealer. now he told me the car was down on power, because the exhaust was blowing around the turbo gasket. He wanted £850 to do the work. So i asked a mate of mine who is really good mechanically to check it out (alot cheaper, and just as good). anyway he said he could not see where it was blowing. Now when i spoke to the independet dealer, i asked him was the visual evidence of the lack of power the fact that there was no boost registering on the guage (at warm idle), and he said it was. Buying a braided clutch hose last week, i spoke to a parts dealer down in devon about this and he said the guy was talkin complete Bulls%$t. Now my problem here as you can appreciate who do you believe? The view i have taken with my esprit is the parts are relatively cheap and cheerfull (GM parts) so if i can do it myself i will. Lets be honest £30-40 p/h ex Vat...opinions?
Hi Liam
I'd give up on your independant dealer if I were you judging by his turbo/no boost/exhaust comments. If the exhaust was blowing then you would more than likely hear it.
As for parts, not as cheap as you might think. Here's a couple of examples : Petrol cap for S3, £80, Chargecooler pump rebuid kit ( a rubber impellor and a couple of gaskets ), £50. Some parts can be cheaper from Lotus than from the donor car. I've just replaced the glass in the heated wing mirrors. £38/each from Lotus/TVR, £55/each from Citreon !
Adrian
I'd give up on your independant dealer if I were you judging by his turbo/no boost/exhaust comments. If the exhaust was blowing then you would more than likely hear it.
As for parts, not as cheap as you might think. Here's a couple of examples : Petrol cap for S3, £80, Chargecooler pump rebuid kit ( a rubber impellor and a couple of gaskets ), £50. Some parts can be cheaper from Lotus than from the donor car. I've just replaced the glass in the heated wing mirrors. £38/each from Lotus/TVR, £55/each from Citreon !
Adrian
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