View Full Version : Power from c14se
blackers999
09-09-11, 04:40 PM
Does anyone know what i can do to get more power out of my c14se i have it at 113.8 the engine is making tgats with the 1600 mpi manifold on it fuel presure is at 3 bar cam is at 119 degrease and compression is at 11.5 to 1. Has anyone got any more ideas?
blackers999
09-09-11, 04:44 PM
Sorry and basicly a straight through exhaust one little box as tge back box
NathanSRi
09-09-11, 04:53 PM
You're getting 113.8 bhp out of a c14se with just them? What is the standard fuel pressure and CR in a c14se? And is it the standard cam?
Stuff like a port & polished head would see healthy gains i reckon.
31bhp increase from that? thier only 82bhp standard and thats from the factory
You could fettle a bigger throttle body on to it off a gsi Carlton with a little bit of tig work lighten flywheel close ratio box would make it a good little thing to move but have to say your going well as is
I would have thought standard FPR is 3 bar anyway. Pretty sure the SRi has the same manifold as the C16SE, the system is certainly the same lol
Back in the day, people used to claim 120 out of these engines. Unlikely I think without loads and loads of money.
blackers999
09-09-11, 06:03 PM
how do i up load pictures i will upload the rollin rod print out? it has a f13cr box already the cam is stanard but the bloke at the rolling road played with the cam timing he said if it was ona dizzy we could do the ignition timing, and the gsi manifold hasent got anthing different than the c16se one only different is they look different. same size butterflies and everything. skiming the head give me the 11.5 to 1 compression and the ecu is the c16se as the first run on the dyno was with the c14se ecu and it was holing the engine back on fuel so c16se on the second run and worked nicely.
how much difference would i see with the lightend flywheel? surly the revs will be piced up a lot better and maybe rev higher?
lightened flywheel won't see you any more bhp.
they run at 2.5 standard and Stu's made 102 bhp on the rollers with just a stainless and an induction kit!
RR figures are pointless unless you've got before mod figures from the same RR and the temp sensor for the post mod run wasn't in a mug of tea lol
lightened flywheel won't see you any more bhp.
Won't see any more ponies but it will help the engine rev more freely and feel nippier
Won't see any more ponies but it will help the engine rev more freely and feel nippier
i like to call bullsheet on that claim.. the flywheel is connected to a clutch 7 a gearbox, diff, shafts, & wheels..... any weight gain from lightening a flywheel is minimal when the whole drivetrain is considered
Why have people been doin it for years then it does make a difference fly wheel is there to carry the engine through idle strokes smoothly nothing to do with drive train separate issue altogether when you look at the size and diameter of gears compared to the big solid piece of steel that is the fly wheel
it doesnt make any difference to the power on a dyno, but it acclerates and decelerates faster as there is less mass to speed up and slow down!
Why have people been doin it for years then it does make a difference fly wheel is there to carry the engine through idle strokes smoothly nothing to do with drive train separate issue altogether when you look at the size and diameter of gears compared to the big solid piece of steel that is the fly wheel
because one person once told someone else that it made the engine rev quicker.... . and then the rumour filters down & somebody think's i'll try that, gets one lightened & the placebo effect convinces them that it works....
the only gain is a weight gain.
look at the drivetrain as a whole. the flywheel is all about smoothness, nothing more. the wheels have a flywheel effect too...
But it's working through a range of gearing and leverage like a huge bar opening a nut wheels have very little effect on the engine fly wheel is connected direct to the crank which your engine has to try turn before it ever gets to the wheels and obviously if it's lighter it's easier to turn
David Vizards book on tuning the A-series explains it all, an excellent read.
But it's working through a range of gearing and leverage like a huge bar opening a nut wheels have very little effect on the engine fly wheel is connected direct to the crank which your engine has to try turn before it ever gets to the wheels and obviously if it's lighter it's easier to turn
when it is in gear, & under tiny part throttle conditions, ie. pootling round town, you might notice a difference if you had a light flywheel on a std road engine.. but under full power, when the whole drivetrain is connected through a gear to the engine, forget it.. how can you sat that the flywheel has to turn first???/ its all connected as one, and once it is spinning, you should be considering the whole thing....
this is yet another bit of historical bollox that is a left over from the mk1/2 escort.....and the british tuning industry still hasn't got over it...
Royston
10-09-11, 08:07 AM
Lightened flywheel, has most effect in 1st gear, but diminishes as the higher gears are selected.
Does not increase HP
/\lollollollol/\
PLEASE DO...
I do have to agree with mowgli on this one skimming a cam box won't increase the size of your cam lobes
it wasnt serious,its a joke me and mowgli had in a thread a while back about "tuning myths"
Sorry should have known my bad
Light flywheels DO help acceleration... Heavy flywheel will take weeks to accelerate and decelerate, but a light one would spin up very quick but also lose speed faster.
But they dont add anything in terms of torque/power.
I've been present when some playing with RR figues was done.... Take one standard 'new' mustang and test it with the temp probe in ambient air, get stock power (near as damn it). Then place the temp probe in an ice cream, get about 100bhp down lol Then place the temp probe in a coffee and voila 500bhp lmao
There are only two RR's I believe in the UK, and only one of them I REALLY trust lol
Thanks Stuart at least some one agrees with me lol
stu. show me proof.
I simply cant be arsed to give you a 3 year lecture on Inertia. But you can do the google research yourself.
Mostly the lightend ness is taking weight from the outer edge of the flywheel, but its the term that gets applied.
And if the flywheel weight wasnt important for engine behavior why would OEM's bother with DMF's (ignore the reliability issue as they are pikeys)
the bit i struggle with is when road car flywheels get lightened, they retain the same size clutch and the same size ring gear. as all flywheel inertia calcultations are all about rotational mass and as the ring gear stays the same, and so is the clutch cover, and the weight is removed from nearer the centre, then any possible gains are very small.. but then if you add the rest of the drivetrain into the equations,it becomes a diminishing gain..
now if you put in a smaller diameter flywheel & a tiny multi plate clutch, i could see where a dramatic cut in rotational inertia would come from...but then, of course, the starter would need some form of step up gearbox, so there would be a gain in weight
i've just never seen a practical performance test that proves once & for all whether lighter flywheels are a great performance gain.. even though it would be a dead easy test, but i suppose since the demise of CCC mag, there really isn't a proper technical car mag about.
blackers999
22-04-12, 08:34 PM
been back to the rollers fuel pressure up at 3.5 bar compression ration at 11.5 to 1 and half moon taken out of the inlet and the cam timmed up at 115 degreese on another engine with f13cr box engine producing 119.3 with a 18.6 loss to the wheels i have 101.1 at the wheels
Pistol Pete
22-04-12, 08:43 PM
Crikey....we havent had a popcorn worthy thread for a while.
Based on what you posted as your mods, i very much doubt you are seeing the claimed output you originally stated. The second claim of 101 @ the wheels seems abit more real world.
The above may seem like a dig, so i will try to balance it out....i had a C14SE in my Nova before i went down the XE route. It was a very strong engine and it surprised many people when i told them it was a 1400. All i had was a 4 branch manifold and an induction kit. No idea if the previous owner had any head work done.
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