ScottyBrum
Member
Registered: 12th Jan 04
Location: Birmingham
User status: Offline
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Just been to the rolling road near me, RR read out come out at 190bhp@5425rpm (C20LET)  He said cus the intercooler is only a small one which is stuffed up the front passenger side of the engine bay, that the induction pipe is getting quite hot, therefore the warning light is coming on and the engine is being restricted. Said i either need a Bigger intercooler or a charge cooler running with the current intercooler i have got. I am not sure what the intercooler is off that is on mine  So looks like i need a bigger intercooler with a new position in front of the rad, or get a charge cooler. Any suggestions anyone?? Oh by the way can anyone clarify whether the solenoid which restricts the boost works through all the gears or just 1st & 2nd?? My mate who had a C20LET Astra says that that will only restrict the boost in 1st and 2nd, the guy at the tuning place says that it restricts the boost in all gears Just wondering as mine is bypassed at the moment and not connected in 
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Marc
Member
Registered: 11th Aug 02
Location: York
User status: Offline
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General Chat....
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Rob R
Member
Registered: 31st May 03
Location: Kent
User status: Offline
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help and advice zone matey 
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Offline
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I assume that if you've not connected the restrictor, it'll be restricting in every gear.
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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why would you have a boost restrictor attached to the gearbox if it restricted the boost in all gears? 1st and 2nd only, if you bypass it it wont limit the boost at all.
Standard intercooler is too small and in a crap place on the Calibra's, so if you've put it in an equally poor, or poorer place it wont be doing you any favours. Get a decent sized front mounted intercooler, or at least stick the standard let on in front of the rad in full air flow. You want the pipework as smooth as possible with no kinks or anything.
Charge coolers can be complicated, a well positioned FMIC will be easier and better.
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vibrio
Banned
Registered: 28th Feb 01
Location: POAH
User status: Offline
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the ECU will retard ignition and cut boost if the inlet charge gets too high. also the ECU can restrict boost in a particular gear to increase traction. Get a pic of the front of your car and see where the IC is. also I suggest fitting a temp sensor and moniter your inlet temp.
does air get to the IC. so long as air gets to the IC then you should be fine
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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the title amuses me
"only 190bhp"
thats 80 bhp more than me
id get a fmic get more air too it should run better
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