need help identifying a williams lump

[j.leggz]

hi people, needing some help,

ive just gone and bought a clio 16v off a mate and its just been rolling roaded giving out 156 bhp, its had an exhaust and a k & n slapped on it,

from looking at the spec sheets 4 a 16v it reads that they give out 137 bhp and that a williams gives out 150bhp,

im not to sure what lump ive got, is there any visual differences under the bonnet that i can look for to say if its a williams,

everything says that its a 16v

 

[_Tom]

Simple really.

When booting it does it seem to start going better from 4k?

 

[2 live]

under the inlet manifold is a tin plate..its on the gearbox side of the block..its a bit tricky to get ur head in to see it but itl either be f7r (2.0)or f7p(1.8) thats stamped on the plate........

 

[_Tom]

I think my way is easier! lol

That plate is well hard to get to and read!

 

[Matt16v]

Also - what does it red line at? - Where is the peak power on the rr print out?

 

[j.leggz]

ive been told the rev limiter is at 6 and a half thou, ive just bought it off a friend, he wasnt sure either, only cost me 900 bux, very clean aswell, soon as it gets passed 4k its off

 

[Griff]

Probably just a dodgy RR..

 

[_Tom]

Quote: Originally posted by j.leggz on 25 October 2004

soon as it gets passed 4k its off

I think we have our answer ladies and gents

 

[j.leggz]

y would it b a dodgy rr

 

[Griff]

Hardly a technical answer tbh...

 

[Griff]

Quote: Originally posted by j.leggz on 25 October 2004
y would it b a dodgy rr


Because the majority of Rolling Roads arent calibrated correctly and give false results. I cant beleive how anyone can buy a car and not know what engine is in it? How long did your friend have it? Did you buy the car without checking any of the history or something?

 

[j.leggz]

if im running 156 bhp what would a chip do 4 me

 

[Griff]

Ego boost, lighten your wallet, maybe better throttle response, thats about it.

Dastek or similar would be a different story however...

 

[_Tom]

To give you an idea mate - most valvers with a chip, filter, exhaust and decat only make about 150-60bhp.

Oh and i have a HillPower chip which deffo made a difference. Not that much quicker but deffo smoother and you get the higher limiter.

 

[j.leggz]

i know what engine is in it im just questioning the bhp to a standard clio 16v

 

[Matt16v]

If it redlines at 6,500 rpms then it sounds like a Williams engine or a 2.0 of sorts.

(I know of some one that bought a 1.8 from a breakers only to realise it was a Williams engine - it does happen)

 

[j.leggz]

whats a dastek

 

[Matt16v]

Dastek unichip - piggyback ecu that is re-prograbable and actually gives you a gain in power unlike plug and play chips.

Also can be removed easily in times of emergancy!

 

[j.leggz]

how much is a hillpower chip

 

[Matt16v]

Bout £200 incl VAT.

Id so some proper research before going and buying one just cause its cheaper than a UniChip.

Piggyback or standalone ECUs are far far more programable than simple chips.

Personally though on a normally aspirated car I wouldnt worry about it unless your having headwork and cams done.

 

[willy 0329]

the dastec uni chip will cost over £400+ all in and wont give a higher limit until u buy another part for it where as the hill power chip will lift limiter on willy/valver and will cost about £170 fitted with club discont all depends what buget u have

 

[cat171]

what colour is the dot on the dip stick, if its a valver it will be white or black,
a williams had a blue dot.
(however i have heard that some blue ones found their way on to valvers !)

 

[Nick Read]

Unless youve driven both you wont tell the difference by when it gets going, in a Willy its a little lower down but theyre both full up on the cam by 4500-5000. Best way is either the engine tag which will be F7R for a 2.0 engine and F7P for a 1.8, but this is tricky to find. Easiest way is just to cane it to the limiter. If it hits around 6500 before it calls time, then its a Willy. If it gets around 7000 then its a valver.

 

[m4rk]

sounds like a pretty sh*ty mate if he cant tell you what car hes just sold you.

 

[j.leggz]

thanks 4 help ppl

 

[Matt16v]

Quote: Originally posted by willy 0329 on 25 October 2004

the dastec uni chip will cost over £400+ all in and wont give a higher limit until u buy another part for it where as the hill power chip will lift limiter on willy/valver and will cost about £170 fitted with club discont all depends what buget u have

Just raising the rev limiter is about as usefull as a chocolate kettle IMO.

Williams hits peak power around 6K rpms - then it drops off so why raise the limit to say 7k rpms when your getting less power there?

 

[Matbrown]

To be able to hold the throttle on a sweeping bend without fear of the rev limiter kicking in.



Mat.

 

[16v_dave]

exhaust manifolds are differant

 

[Adams_16v]

zorst manifolds are different, williams one is tubular! the willy engine in mine untill i changed the manifolds had a big kick at 4k same as the valver, but if ur limiter is 6400 then its most likely a williams lump!

boot it from 2krpm, and see if it pulls well, if so its a 2.0 if not its a 1.8

 

[MATT BLACK]

clio 16valve engine code - F7P 722

Williams engine code - F7R 700

The engine code can be found on the block - to the r/h/s of the oil filter - little silver tin plate 5cm x 3cm pot rivetted on.