View Full Version : Car is finished
:D
car is finished, running good now, nice and clean aswell
http://i5.photobucket.com/albums/y186/mbrunskill/enginepic.png
oh yea, also at GDI today was this Dodge Viper 8)
http://i5.photobucket.com/albums/y186/mbrunskill/viper2.jpg
http://i5.photobucket.com/albums/y186/mbrunskill/viper1.jpg
http://i5.photobucket.com/albums/y186/mbrunskill/viper3.jpg
Laine_16v
28-03-2007, 19:03
It says GDI on it, so i guess it means business! 8) :twisted:
excellent news mate, spec?! :P
Smokey McPot
28-03-2007, 22:29
Have GDi lost their rep for blowing shit up now?
MatBrown
28-03-2007, 23:10
Have GDi lost their rep for blowing s**t up now?
Hmm,
http://www.williamsclio.co.uk/forum/viewtopic.php?t=20954&highlight=
Mat.
Smokey McPot
28-03-2007, 23:21
oh.
VIPERONE
29-03-2007, 02:15
oh yea, also at GDI today was this Dodgey Viper 8)
http://i5.photobucket.com/albums/y186/mbrunskill/viper2.jpg
http://i5.photobucket.com/albums/y186/mbrunskill/viper1.jpg
http://i5.photobucket.com/albums/y186/mbrunskill/viper3.jpg
will be at GDI at the weekend, cant wait to see the dodge :D
still undecided wether to get the cams done on mine
cams on a 172 are as much use as tits on a bull
cams on a 172 are as much use as tits on a bull
why? (the car not the bull that is...)
Clio_GTT
29-03-2007, 11:59
cams on a 172 are as much use as tits on a bull
why? (the car not the bull that is...)
pretty sure they run quite harsh cams as std and the VVT sorts it out at low RPM ?
they run 260 degree ones as standard, but as the engine's are good for 8300rpm on stock crank and around 8k for the pistons I dont see why putting some 270+ duration cams wont make a good difference.
... and regarding the problem with Brun's car I dont see how replacing the head would cause that... some real haters on here lol
where do those rpm limits come from?
They arent in line with any of the renaultsport technical warnings or the common cause of bottom end failure.
that was just my understanding of them, what are they then?
tbh Ben I'm not really that confident in anything Reno tell me, tech dept or otherwise, best way is the "suck it and see" method imo, these engines are cheap enough to do it
VIPERONE
29-03-2007, 12:54
where do those rpm limits come from?
They arent in line with any of the renaultsport technical warnings or the common cause of bottom end failure.
GDI re wrote the technical guides
that was just my understanding of them, what are they then?
tbh Ben I'm not really that confident in anything Reno tell me, tech dept or otherwise, best way is the "suck it and see" method imo, these engines are cheap enough to do it
All the engines i have seen or heard of with failed bottom ends have been piston failures (and that doesnt include anything like piston/valve contact or things being sucked into the engine lol), simply due to excessive rpm and have all had a 7800rpm limit. The crank and rods are strong, they will take the abuse, but renault have never been known for making strong pistons. Prolonged use above 7200rpm will see them fail. Daily use it'll take longer as your not up there alot, but cup racers are set to below the stock limiter because of this.
Just a warning as when they go.........they take everything out with them which can be a tad annoying and its cheaper for it not to happen at all.
so only 200rpm out on what I thought... but either way I think it's fairly obvious that if you live above the standard 7200rpm redline that the engine will eventually go bang.
what about the crank? 8300rpm seems reasonable if the pistons are the limiting factor. I want mine to rev over 9k ideally, so imagine it's going to be a pricey build regardless...
mine was running to 9k rpm on the last build with no probs on a std albeit balanced crank.
theres more to it than just the physical ability of the bottom end...the cams need to be able to provide the ability for decent VE at higher engines speeds, the head needs to able to flow well with higher gas speeds, the valvtrain needs attention...so uprated springs/followers/caps are in order....and this is just scratching the surface really.
fair do's stan, it will be getting the works. Headwork, cams need upgrading, suppose that means solid lifters too... crank, rods, pistons etc etc etc. wnot be til next year now though, need to clear debt and work some overtime to pay for it, think I'll only put about £5k on the engine on this one... hopefully it wont do a "Williams" and all be on repairs... bloody French POS lol
lol
well if I were you, you want to bank on only keeping: block, crank, inlet, and ecu...the rest is going to need replacing.
hmm... tbh I was only thinking I'd need to keep the ECU and block... lol... crank will be getting replaced for sure, seen the one I want and it's pure artwork, as well as some rather cool new pistons
sweet...why stop at 9k then?
oh I don't, that was just a 'minimum' I'd be happy with lol... ideally 10k+ if possible as eventually I'd like to have this as a track only car, have something like a Skyline or E39 M5 for the weekends and a run about
omg, put a long post about how unrealistic all this talk of 10k is.......but i so cant be arsed to go over it again.
summary, 8.5k is all you need for decent power........you've got a low R/S ratio, small bore and inlet valves which are spaced too far apart to get any larger ones in there.
well whatever power can be had I want, if other people are doing 9.5k rpm clio's in greece I dont see why it cant be done... I'm no engine tuner, but that's why it's worth speaking to more than one person, as in my experience you get different answers from different people ;)
i think i might have found the cause of my vibration, see the other thread
omg, put a long post about how unrealistic all this talk of 10k is.......but i so cant be arsed to go over it again.
summary, 8.5k is all you need for decent power........you've got a low R/S ratio, small bore and inlet valves which are spaced too far apart to get any larger ones in there.
these issues would no doubt be addressed though if a proper job was being done...at least rod length (and pin height) and stroke seen as he's planning on a custom crank.
i quite like the low R/S.....but most people dont know what to do with it :wink:
Smokey McPot
30-03-2007, 00:00
Just to clarify I have no hate for GDi, just they seem to have a reputation for poor tuning and subsequent engine failure :)
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