Bonzai
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Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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increased the fueling and boost on my TD tonight, noticable improvements but that bloody release valve cuts out my turbo pressure when im flooring it unless i feed the accelerator 
im hoping to go on a rolling road day with my club on saturday but theres no point if i cant floor the car cos it wont work.
so far i think my options are, find a nut of same diamater and weld a steel plate onto it and replace the valve, or what im likely to do is get some liquid metal and fill up the current valve.
what do you think guys?
Cheers, Ben
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Bonzai
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Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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bttt, someone must ave something to say?
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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replied to your u2u. DONT remove it unless you have intercooler fitted, you can say good buy to the head gasket otherwise.
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Bonzai
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Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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thanks for advise. ill have to turn the fuelling down to reduce the boost then correct?
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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no, close up the bleed valve. how much you turn the fuelling up in the end? think mine is only turned up a little way, i spent hours fiddling with the fuel and boost settings until i got it right, not much smoke and good performance.
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MikeH
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Registered: 3rd Apr 03
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Can you take it appart and try and fit a stronger spring on the valve?
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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quote:
Originally posted by MikeH
Can you take it appart and try and fit a stronger spring on the valve?
that would defeat the point in having it though, its there to stop you blowing your engine up, at that much boost without an intercooler its gonna start cooking things. mine pops open at 1 bar which is still bloody high boost pressures with no intercoolers
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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the fuelling is set so it idles at about 1050/1100 rpm,
at first it was idling about 1250, i took i for a run and i didnt notice it opening until i floored it in 5th and hit 80 before it started pissin about
now it will start opening between 3 and 4000 rpm in 2nd 3rd 4th and 5th unless i am really easy accelerating which of course makes my acceleration shit
my car now wont do more than 90 on a flat straight and a ton down hill.
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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mine used to do that. just turn the boost down a little at a time until it stps doing it.
also turn your idle speed down, it should be about 850-900 rpm
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
User status: Offline
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im not sure what the bleed valve is set at now, i didnt plumb the boost gauge in because i didnt have anything to connect the hoses back up with. i didnt see what exactly it was that was adjusted to control idle speed but hopefully my mate will remember
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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your probably trying to run about 15 psi i would imagine from wat you told me.
idle speed is adjusted by a screw on the side of the fuel pump. infact there is two screws, one for cold and one for warm.
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Bonzai
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Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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so ill just have to tweak both boost and fuelling till i find a ratio that doesnt pop the valve off then
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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teh guy that done it for me said last night that i could buy ablanking plate from a plumbrs to fit and thats what i should do. he has done this on several TDs, he also told me of one that was running 3 bar, thats silly boost i know. THe block is strong it cant be that easy to blow things up?
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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no, the head gasket will go though. you can buy a plug from a plumbers, but i do not recommend running higher boost until you have an intercooler fitted. fucking hell at 3 bar it must do about 1mpg.
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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Got a clip of a F350 with a Cummins diesel engine running 90psi, does a 11.42 1/4
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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yeah he said eventually the guy cracked the head on it but it was an awesome laugh! he reckoned it was pushin over 300 lb/ft! spinnin in 4th with ease  how much would it cost to slap an intercooler in? presumably id have to get custome pipework too. get a cheap intercooler from a scrappie or ebay etc hang int infornt of the rad??
dont wanna spend to muchh on my car im tryin to save for somethin lse but i know this car has potential and im trying to release it!
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
User status: Offline
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the guy who done everythin last night reckons it wont do any damage running boost over 1 bar but it wont gain anythin becos of the losses due to heat (i.e. no intercooler)
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burt16v
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Registered: 21st Jan 04
Location: Belfast N.I
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well mateys i learnt the hard way 4 yrs ago when my boost got turned up, it cracked the head and broke a valve guide which went doen into the turbo and bust all my exhaust and turbo seals!!!not a pretty site oil and white smoke everywhere£1000 to fix.
would have been bettre gettin an engine from scrappie but sure......
i later found out that yes i should have got an intercooler.
one out of a toyota camry is ideal.
but fcuk they go when turned up i used to beat 16 sports which was fun just dont go too mad with the boost
burt
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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fuk it its done now. the valve is full of chemical metal it shouldnt open now. i will leave it like this for the dyno. i dont think the pressure is that much anyway my car certainly does not feel that much quicker, definately wuldnt beat 1.4's let alone 1.6's. Ill look at reducing the pressure when i have the ability to plug in a boost gauge
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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not that much quicker ?????
really, mine made shit loads of difference, get that fuelling turned up more.
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
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im serious. tho i never timed 0-60 before id guess its not much quicker than how it was. fuelling is high already like i said it idles about 1100. i can pull off without having to give it any juice! will see what the dyno reads tomoro although im not confident the rollers are accurate (a mates mg-zr 1.4 pulled 120bhp). im sure i can feel more torque tho
i have time records that i did with my mobile phone for things like 40 to 70 in 4th etc i shall see if i can compare them but they would not be accurate at all
[Edited on 20-02-2004 by Bonzai]
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M4rk P
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Registered: 22nd Jan 03
Location: Herts, Car:1.5tds
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well mine (its kris ) defo made a huge difference, not just a small one, well as the rolling road prved it gained 32 bhp, and it feels like it too, pulls like a train now.
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Bonzai
Member
Registered: 25th Mar 03
Location: Cardiff, Wales Drives: 205 GTi 1.9
User status: Offline
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id be happy if i hit 75 tomoro to behonest i dont think its made that much difference but then again i havent really screwed the nads off it since its been done. i might take a quick spin tonight hopefully the chem,ical metal will have dried and stop the valve opening so should be a continuous speed increse
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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ok i just turned my boost up a tad more, its on the brink of valve popping. hmm, lovely 
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Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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did you give the guy who did it the guide to follow that i put in tutorial section? i bet he didnt remvoe the polo from the fuel pump.
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