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Clio 172/197 forged turbo engine build
Cub.
ClioSport Moderator
Happy days, good progress being made bud. Another one looking forward to seeing this at Bedford.
Ph1 172 & Clio DCi
Every build goes fast on that car!
Feel free to take it for a spin if I do manage to get it there, although as per above timescale, only takes one minor thing to go wrong and it wont make it as so little slack with my free time near to that event
Cub.
ClioSport Moderator
Cheers mate, appreciate the offer. Fingers crossed all the parts of the 'completion puzzle' come at the right time and without any other unforeseen issues.
Ph1 172 & Clio DCi
Chip loves to give anyway a passenger ride! And if anyone gets the offer, Take it!! Chip has worked wonders perfecting our little throw together test bed!
15 thou I set the top rings to, the second rings were around 18 already so couldnt alter that.
One of the rings was under 9 before I filed it (and it wasnt a bore difference I checked the rings all in one bore first then checked each in the one it was going in and the bores were all the same), which is just typical wossener rubbish tolerances IME!
iceberg 172
What rings are you using chip and what are the tourq setting for the crank. My blockes getting dipped at the end off the month with my mates mini and all these turbo conversion are giving me ideas
R5 gtt, R27 F1 team
how much would that be in mm's?
i have a fully rebuild forged engine built by bbpt but going to pull it apart anyway just to check everything.
iceberg 172
0.38
Last edited:
iceberg 172
0.38099999999999995 to be precise
The wossner rings mate. Which torque setting do you mean when you say the crank?
iceberg 172
For bolting it down to the crank with the main bearings. I cant find it in the workshop maual
I dont recall off hand mate for the mains to hold the crank into the block, will have to look it up when I am back home, it wasnt a lot before the angle torque though, something like 30NM and then 65 degrees or something along those lines for the mains, and the big ends were 45lbft IIRC as they are ARP ones.
iceberg 172
Ok thanks
Danlp6 popped round today and gave me a hand getting the engine and box finished off and in.
I decided to time it up on standard marks rather than to retime the 197 cams like we do on the N/A engines, just because I think it will suit the power band a little better so I borrowed mike from MWM's genuine renault cam timing tools and me and Dan used those to do it.
Decided to go for a 6 paddle clutch as they tend to last a bit longer and not be quite as grabby as the 4 paddle I was running, and then to make sure it can still handle the power I swapped to using a new uprated cover rather than a standard one, total bill for the clutch inc delivery was 477, ouch!
Degreased it as they have a protective coating on which needs to be removed:
Then it was just a case of lobbing it in the hole.
Hopefully will get a chance to plumb it all in next weekend and then the weekend after I can start with mapping it and running it in so its done before bedford as Ive got a ludicous amount of work on at the moment so just having to try and squeeze it in around that, TBH if it wasnt for Dan giving me a hand a few times I think that I probably wouldnt be done in time so Im really greatful to him for that
I decided to time it up on standard marks rather than to retime the 197 cams like we do on the N/A engines, just because I think it will suit the power band a little better so I borrowed mike from MWM's genuine renault cam timing tools and me and Dan used those to do it.
Decided to go for a 6 paddle clutch as they tend to last a bit longer and not be quite as grabby as the 4 paddle I was running, and then to make sure it can still handle the power I swapped to using a new uprated cover rather than a standard one, total bill for the clutch inc delivery was 477, ouch!
Degreased it as they have a protective coating on which needs to be removed:
Then it was just a case of lobbing it in the hole.
Hopefully will get a chance to plumb it all in next weekend and then the weekend after I can start with mapping it and running it in so its done before bedford as Ive got a ludicous amount of work on at the moment so just having to try and squeeze it in around that, TBH if it wasnt for Dan giving me a hand a few times I think that I probably wouldnt be done in time so Im really greatful to him for that
No problem atall mate. Glad to be able to help shame we didn't have an inlet gasket, as it would be in a running
shame we didn't have an inlet gasket, as it would be in a running 
Paul172sport
ClioSport Club Member
Sunflower Ph1
looking great youve no idea how much i want that lump in mine right now.
looking forward to actually seeing it in flesh.
how far do you reckon the standard bottom end would have run? if i ever build mine will be fast road and very occasional track day rather than the harder but more fun yours will endure.
looking forward to actually seeing it in flesh.
how far do you reckon the standard bottom end would have run? if i ever build mine will be fast road and very occasional track day rather than the harder but more fun yours will endure.
Have done now mate just not by the time I took the photo.
I was going to put inlet straight on but they sent me the wrong gasket.
Paul172sport
ClioSport Club Member
Sunflower Ph1
So il play around 250-275 then lol
Just checked some measurements from a set of 197 cams and with the VVT disengaged the inlet lobes are at 0mm lift but the exhaust lobes are at 1.87mm and 1.48mm. With 16 degress of advance (normal 172 dephaser) your inlet will be at 0.61mm and 0.48mm. 1mm of lift occurs at 24 degrees.
How do you think it will fair with so much overlap and the log manifold?
How do you think it will fair with so much overlap and the log manifold?
I'm probably not going to advance the inlet in order to avoid too much overlap occurring in order to prevent excessive egt. I was actually tempted to keep the 172 exhaust cam in place as well but have decided to give this a try and I can always swap it around later on if I don't like how it works or slightly r****d the exhaust slightly. I've a lot of experience with cammed turbo engines but not specifically the f4r so I'm experimenting a bit basically mate so haven't got any guarantee the cam change will be beneficial.
Dan was round again this afternoon so we cracked on, all back together now and we have done the first twenty miles to start running it in, with dan driving and me adjusting the map as we went as obviously with different cams now its fuelling requirements have changed.
Feels mint so far
MASSIVE thanks to danlp6 as I'm now a couple of weeks ahead of schedule thanks to him helping me out the last few weekends.
Feels mint so far
MASSIVE thanks to danlp6 as I'm now a couple of weeks ahead of schedule thanks to him helping me out the last few weekends.
SharkyUK
ClioSport Club Member
Good stuff, chaps - it's coming together nicely.Dan was round again this afternoon so we cracked on, all back together now and we have done the first twenty miles to start running it in, with dan driving and me adjusting the map as we went as obviously with different cams now its fuelling requirements have changed.
Feels mint so far
MASSIVE thanks to danlp6 as I'm now a couple of weeks ahead of schedule thanks to him helping me out the last few weekends.
Yes mate hopefully both. Still got some other jobs to do and I need to run it in and map it etc. but looks pretty realistic now thanks to dan doubling my work rate by coming and helping
just a same I'm working away from home so much in the mean time, would be easy if I had evenings as well.
Megane r26
Looking good chip, you guys certainly haven't hung around. Looking forward to seeing some track vids
This going to be at FCS?
This going to be at FCS?
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