View Full Version : what sort of bhp with these mods...........??????
ok so im having the head done by benr, have 278 degree cams going in, itg panel in airbox, de cat, full magnex and currently hill power chip but looking at getting chipwizards remap later to get the best from all these mods. what sort of bhp should i be looking at?? 175-180??
clowo16v
20-03-2006, 23:37
Sounds about right, maybe a bit more.
See ya
Matt
iirc the nana made 179bhp with just cams/mapping or somesort and usual breathing mods
so id expect more but depends how the car reacts to the 278degree cams, alot go for the 260ish degree in williams/2.0 16v's
MattyH16valver
20-03-2006, 23:43
which cams u going for m8? :)
they are kent. before everybody says it no i wont be using kent pulleys.
david932
20-03-2006, 23:59
i've got the same mods but with 264 cams and just had a chipwizards remap and made 199.8bhp @ flywheel. :)
wayne thought the cams im using might even be a bit wild.
with this duration the idles still quite lumpy so im not sure how driveable 278's wolud be for every day use
oh dear. so 278 cams could be an issue for day to day driving???
thats what i was thinking, only one i know of with high degree cams is white t/b'd clio
what cams are u running dave??
david932
21-03-2006, 00:23
piper fast road
:shock: this isnt good news. :(
clowo16v
21-03-2006, 00:35
Might aswell with throttle bodies mate now you've gone this far. Would be well over 200bhp then I would think.
See ya
Matt
if for a 2.0 litre then these are 278 inlet 256 exhaust kents fast road cams. nothing to worry about. if a 1.8 then 278 inlet and exhaust rally hydraulic cams and these should be usable with some mapping maybe a bit lumpy. power band 30000-7500. the 2.0 litre 2000-6500 power band. need any more specs just ask.
i've got the same mods but with 264 cams and just had a chipwizards remap and made 199.8bhp @ flywheel. :)
wayne thought the cams im using might even be a bit wild.
with this duration the idles still quite lumpy so im not sure how driveable 278's wolud be for every day use
Thats fantastic!!
i need to give wayne a try!
oh dear. so 278 cams could be an issue for day to day driving???
kents 'advertised' duration always sound alot longer than they really are.
my catcams are 285deg and they are ok...but that isnt on std managment
david932
21-03-2006, 09:59
just checked my print out and realised i got it worng :oops:
it made 199.8 on the day but corrected it was 192.8... im still happy with that tho
lol.thats about 40 bhp up on mine.
but to be fair..it hasnt been on waynes rollers yet...i had mine done b4 he got his own place so did it at re.s
even then tho i never got a print out......there was a mad twin cam mini on the rollers that gave print outs..
using kents 260s and waynes map tho, mine was about 145@ the wheels....iirc.
btw....the 278s/258s are the ones il be using on me rebuild........again i wont be using kents pullies......dont wanna run their cams either really......but im tite and the head comes with these cams fitted.
tickover isnt all that bad tbh, altho...............it is runnin on throttle bodies too which can be mapped to give a good tickover too.
i've got the same mods but with 264 cams and just had a chipwizards remap and made 199.8bhp @ flywheel. :)
wayne thought the cams im using might even be a bit wild.
with this duration the idles still quite lumpy so im not sure how driveable 278's wolud be for every day use
Guess the flywheel figure is estimated on transmission loss so what was the at wheels figure?
Good stuff though. Can't wait for my engine to be ready for 2.0 chip wizard magic.....
I was under the impression that 270's + were a bit wild for the 2.0L engine as you cant maximise the power at the top end coz the bottom end of the engine will only take 7300rpm at a push!
Martin's old willy (now edde's) has got 276deg pipers in it (am i rite?) and its not massivly quick!
I'm going with piper 265deg ones myself!
I'll try to make a small video to see how it is a willy motor on 320 deg cams at idle.The big difference is the t/bs which making the idling sounds perfect :D :D :D
FlamingMonkey
21-03-2006, 15:43
david932, What did you get at the wheel at Waynes?
What work you had too too, nice figure is 192, think mine made 182 using waynes rollers which was 154.5 at the wheels
if for a 2.0 litre then these are 278 inlet 256 exhaust kents fast road cams. nothing to worry about. if a 1.8 then 278 inlet and exhaust rally hydraulic cams and these should be usable with some mapping maybe a bit lumpy. power band 30000-7500. the 2.0 litre 2000-6500 power band. need any more specs just ask.
with a power band of 30000-7500 it will be lol :wink:
lol :roll:
well spotted richy!
piper 270's arent wild...idle is just normal
well ben has got the head and as i knew the valves are ****ed due to the ternsioner failure so he is going to try and source some new valves which are apparently very hard to get hold of. my only other option would be to use the bigger 33mm valves that he has (i think in stock) but will obviously cost a lot more. :( waiting to hear back from him.
well ben has got the head and as i knew the valves are f**ked due to the ternsioner failure so he is going to try and source some new valves which are apparently very hard to get hold of. my only other option would be to use the bigger 33mm valves that he has (i think in stock) but will obviously cost a lot more. :( waiting to hear back from him.
go with them mate, thats what mine has now :)
did u notice much difference after having your head done with the bigger valves?
the valves arent hard to get hold of at all mate....std ones anyway.
david932
22-03-2006, 13:31
<< the car specs there, it only made 157.3 atw
i think i'll be taking a look at me driveshafts and bearings..
did u notice much difference after having your head done with the bigger valves?
cant tell u yet, ive not fitted it yet, waiting till paid so i can get gaskets etc
i take it getting a new head gasket is a must when fitting a new head then? wheres the best place to get new valves? renault? gsf?
yes a new head gasket, oil/filter/coolant any other gaskets and head bolts etc to
reno should sell the valves but there not cheap alot of motor factors can source them for u though
Have a look at some sellers shops on ebay. There are often motor factors selling good parts cheapish. Saw 16X F7R valves recently, but no idea how much they were.
cheers ill check. tbh getting a bit pissed off with it all now, seemed like a good idea at the time. might just take the kent cams out and sell them on ebay then stick the head in the garage for a few years. :cry:
na, dont loose sight mate. will be worth it in the end! valves shouldnt be that expensive, then youve got a cheap head, which should be good.
just need to get it mapped somewhere!
i know its just thinking how much this is all going to cost, headwork, new valves, then all the gaskets plus need new cambelt and aux belt and full service due then paying to get all that fitted. i know though that when/if its all done it will be spring/summer and ill love going out for blasts in the good weather and long nights.
everything costs money on clios mate, just stick with it and the effort will be worth it! :D my enthusiasm is slowly building back up for clios lol!!!
right got a pm off benr. costs are prohibative. looking at £240 for complete set of 16 valves from renault, then the cost of headwork, then the cost of getting it all fitted. :( thing is ive got a perfectly good head on the car already just wanted to get it ported etc then cams pulleys but cant have the car off the road so this was my only real option. :cry:
look at just getting it cammed n mapped then?
yep this may be my best option.
you cant expect it to be cheap mate.
headwork is around 400-500 quid. then valves, valve seats etc, gaskets, labour, pulleys etc
to put it this way im gonna be the best part of 1.9k to get headwork, cams, pulleys, remap, and labour!
i think this will be much cheaper!
roughly speaking its around £400 for cams, £200 for pulleys, £350 for remap + headwork depending what u do varies abit, the labour(if u cant fit it all yourself)
Dont forget i mentioned that i have a set of used but good willy valves i've been holding, they will be significantly cheaper.
New willy valves can only be had from Renault and are expensive.
New megane valves can be had from AE and are alot cheaper.
And port work, bowl work is much cheap and almost as good.
ben u have pm on cliosport.
or fit proper big valves @140 a set
May cost a bit to get all this done but when it is it will be like a new engine with no clutch, cambelt, seal, gasket, bearings, waterpump etc to worry about for several years.
And you will recoup some of the cost by selling your existing engine and get more power into the bargain. That's why I am doing my 2.0 conversion but without the recoup of selling an existing 2.0 as my 1.8 doesn't really sell like a F7R would.
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