cams on 172 help

[steves-clio]

fitted some cams to my 172 night mare because its not runing right on tick over but its ok when on a run it goes well but when i stop its hunting iam a mechanic for a living and never had this trouble be for as ive fitted cams to lots of motors as any one had this trouble be for. HELP

[Edited by steves-clio on 30 April 2004 at 8:18pm]

 

[edde]

Are the cams a bit to extreme for the car? Who made them and were they just for max performance? If so then you may have to put up with it.

A remap may help though.

 

[NIN-172]

If they are race cams then they probably will run bad on tick over as race cars dont need to run smooth at tick over. Some will stall below a certain RPM.

If they are made for the road you might need the ECU remapping or setting up to run with the new cams.

 

[BenR]

are you sure the VVT mech is dephasing for idle?

 

[steves-clio]

am about to give up all day ive been on it

 

[BenR]

Well, tell us what you did!

 

[Smokey]

^^^^ You gotta guess Ben, half the fun

 

[steves-clio]

just put cams in it head off thats it mate it goes like a tw*t on a run stalls on tick over think its the ecu

 

[telford_mike]

Rsport ECU runs idle at around 1200rpm. Would this help?

 

[Andy GDI]

did you use the cam locking tool??? and the pully locking tools??

also what is the profile??



Andy

GDI

 

[BenR]

Thats what i was thinking, if he screwed up the timing of the cams by not locking the pullies then the VVT would be advanced in a non phased state, then advanced 16 degrees more!!!

Lucky nothing broke!

 

[steves-clio]

yes all locked off thought that may self. set it up 3 times when blowing down the vaccum pipe the tick over is ok it seem as it needs more air not sure of the profile of the cam can find out wday they are re-profiled cams

 

[BenR]

Which vacuum pipe?

 

[steves-clio]

one on side of engine by air intake mate

 

[steves-clio]

i think its messed up the ecu my be the air pressure mixtuer vv timing its not reading the computer right thanks for all your help but i need to take it to a expert now needs to be re-mapped my be?

 

[BenR]

Shouldnt be, i think you might of just put the cams in incorrectly and timed them wrong and messed with the VVT actuation.

And the breather near the air intake? The crankcase ventilation pipe on the elbow. Dont se how blowing in that will help. Or do you mean the MAP?

 

[steves-clio]

sorry meant map one ive fixed it now its runing nice it was the ecu sending the wrong signals out had to be re maped not sure what the bhp is goes alot better through the gears more responsive only took me 5 days f**king night mare thanks guys for your help

[Edited by steves-clio on 03 May 2004 at 7:29pm]

 

[CocoPops]

How did you "fix it"?

 

[BenR]

Wrong signals to what?

Why would the ECU do that, and what remap?

 

[Andy GDI]

the cams should be able to run on the standard map... (if they were the piper fast road ones)...

also how did the standard map get damaged....??

all seems a little odd mate..

 

[BenR]

yea, im well consfused as to what you even did!

 

[McBunny]

slaps forehead with wet bannana

 

[steves-clio]

its had a re-profiled chip...basically a chip which has adjusted the fuel, timing, not sure exactly what he did , had his old laptop out on it...something to do with the air pressure as well..and mixture etc...went on a run with it and he was sat next to me , plugged it into the middle of the console in the car...mate the guys a wiz kid...i was happy. i said "what have you exactly done?" and he said "re-profiled everything", which he meant adjusted the spec of the origional ecu ie map..and its running fine. tick over slightly up and down but nothing like it was...im happy with it so thats sound. Only problem is now, when i start it from cold it revs a bit higher than usual, but def gonna get it rrd just to do the fine tunes. spoke to a guy that had fitted cams to his 172 mk1 he had a similar problem and just run through a few things with me as well. he said exactly what you said, is it a tooth out? could be something to do with vvt as at full revs it advances itself and runs good. so since hes played around with the comp it seems to be a bit better but not 100%. so off to regal autosport tomorrow .. let you know what happens. let you know if ive f**ked it! lol

 

[McBunny]

how the hell has he played with the compression :s has he changed the pistons ? thicker or thinner head gasket ??
oh and ben and andy are very very smart blokes whenit comes to tuning and other stuff. but that lad must know what he is doing if he has the software and cables for reprogramiung via the obd2 port

 

[BenR]

Indeed......sorting what i think is a mechanical fault or an incorrectly fitted item via the ECU!!! total wiz kid.

Wish you could explain it better to us.

 

[steves-clio]

f**k knows mate...all i know is that its running better. plugged it into the port socket..bottom of the dash in the middle, had a laptop, off we went mate. he said it wouldnt be perfect as it needs to rrd for fine tuning. im not into all the electrical side, i fitted the cams and trust me mate i spent 5 days of f**king about with it! so dont worry about it mate..to everyone else who has helped me, most appreciated...not gonna start to get into any clio disputes again please lol...p.s i was as confused as you lot

 

[McBunny]

thats the thing they know them inside out and are still confused lol

 

[steves-clio]

havent got a clue mate..im as baffled as you are and its my car. five days i spent on the car with various people looking at it. guy from ren-tec, he looked at it, walked away scratching his head..spoke to a guy at renault, wasnt interested..paul from ren-tec said "everything fitted looked o.k" so mate i didnt know what to do next...listening to all your advise, when you first said to me it could be a tooth out, i double checked it and went through it all again. made sure all the head was torqued down properly, made sure there was no pipes off anywhere, made sure there was no air leaking through the gaskets, tried everything mate. spoke to a guy in poole who sells a lot of ice and does a lot of chips for cars (re-mapping) it was my last option, he seemed to know what he was doing and ive never been in a car with someone sat next to me with a laptop..looked over to the laptop and there was all sorts of things popping up on it! as i said i wish i had the answers for you mate but i dont. all i know is whatever hes done, its better. the only thing is now when its cold, it ticks over at 2000rpm which it didnt do before. as you know yourself, you cant adjust anything on those, its all done by the cars brain. as soon as i take it to regal autosport tomorrow, i will let you all know the outcome

 

[steves-clio]

like benR said "why would you have to re-map the origonal brain?" ie fitted cams to the old fitted r19 16v, the old clios, cavalier gsi, i dont know boys, maybe im losing my touch? not f**king about with cams on 16v anymore, stick to the old 8v...f**king right!

 

[edde]

Before he fixed it was it a problem at 2k because maybe he just stuck the rpm up

 

[BenR]

LMAO!!!

Im still confused as to what your going on about.

You cant remap via the OBDII port, at least not in realtime.

And if you were jsut fitting cams, then so long as you did it correctly there would be absolutely no problems whatsoever.

Ren-tec....or Renatec in bristol?

 

[steves-clio]

why are you lyao? its not funny mate, you was right with the cams should run with them . matey with the lap top reset the cars ecu thats why it runs ok. well its not now so i dont think its funny at all. i dont know how they remap ecu i just fit the f**king parts.I asked you for your help benr, not to get funny with me. so whats the point of asking for peoples help when they take the piss? its not right is it?. its been to regal and the cams were out. so now your going to say told you so. also they put a new chip in it so its alot better now and they did go in the obd port with a lap top to change information to higher the rev range better fuel put up and more drive ability with 162bhp at the wheels also vvt advanced not bad considering the clio its only 166 to 168 at the fly wheel plus 172 ps. thanks for you help.

so the mods to date are 2 cams, cotton green induction kit, full magnex exhaust from sports cat back, re-mapped ecu, ie has been chipped, rolling road proved 162 at the wheels at 7500rpm peak power, it was only 7100rpm

 

[McBunny]

he wasnt taking the piss he just really is confused as to why your having the problems you should havegot him to do it if he was in the country or andy at gdi but hey thats why sometimes it pays to let the pros do it first time round

 

[clean16v]

http://forum.cliosport.net/display_topic_threads.asp?ForumID=12&TopicID=83176&SearchPagePosition=1&search=steves%2Dclio&searchMode=allwords&searchIn=Author&forum=12&searchSort=dateDESC&ReturnPage=Searchhttp://forum.cliosport.net/display_topic_threads.asp?ForumID=12&TopicID=83176&SearchPagePosition=1&search=steves%2Dclio&searchMode=allwords&searchIn=Author&forum=12&searchSort=dateDESC&ReturnPage=Search

Thought your car had 220bhp? i smell BS

 

[steves-clio]

to clean16v...if youd have read all the thread properly and followed it all the way through, you would have noticed that was someone pranking....why? is there a lot of bulls by you?

 

[steves-clio]

can a moderator please close this topic...thankyou

 

[BenR]

eh, what...huh?

serial re-programming via the OBDII port is normal practice, but its not realtime and cant be dont on the roller per se.

I was getting funny, your posts contradicted eachotehr at points and you brought up some erronous info....so i wanst sure what you were goin on about.

And.....i told u so.

VVT advances 16 deg at 180rpm to 6500 rpm so thats why it wasnt idling..

 

[steves-clio]

well, youre the expert BenR, arent you?

 

[Neil82]

Quote: Originally posted by steves-clio on 04 May 2004

to clean16v...if youd have read all the thread properly and followed it all the way through, you would have noticed that was someone pranking....why? is there a lot of bulls by you?

Just ignore him Steve, hes not even worth replying to.

 

[BenR]

Quote: Originally posted by steves-clio on 04 May 2004

well, youre the expert BenR, arent you?

Whats your point?

I read and ask questions to try figure out what you did to see what has gone wrong. You give me no info, get irate then get upset. And Im in the wrong?

How am i meant to find out where you went wrong when all you said is you put in cams, then wiz kid boy clips his comp into your OBDII port and fixes it.