Page 1 of 4
any decent power figures from 318is?
Posted: Sun Nov 04, 2007 9:46 pm
by treeseries
has any1 got any tips for power gains or has any1 got any mod ideas that have worked in the past to increase bhp on the 318is what sort of results have you found or gained. thanks
Re: any decent power figures from 318is?
Posted: Sat Nov 10, 2007 1:31 am
by hoshy
a couple of ways to go.
appletree did a eaton m45 supercharger conversion and tim_s did a full naturally aspirated job, and took the displacement up to 2.1 iirc - not sure of details but have a seach mate

Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 4:23 pm
by wrcarter
Depents what you want? Chip it for about 10bhp more or like what i did remap it for an extra 15 bhp
Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 10:05 pm
by fuzzy
spends lots of cash and still have less power than a standard 2.5
sorry but i just had to say it

Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 10:23 pm
by treeseries
i dont think thats a fair comment? depending where you read there is hardly a huge difference in power. i've seen 318is quoted at 140bhp and 325i's at 170bhp. i cant see it being that hard to squeeze 30bhp out of it. in a car that would obviously weigh less than the 6pot i cant see you would need 30bhp to be on a par with the standard 2.5(power to weight etc) then theres the handling. from personal experience i believe the IS handles better than the standard 2.5. then theres the loss of power both cars would have due to age so a well looked after, well tuned IS with a few tweaks could quite easily have MORE power than a STANDARD 2.5. so before you jump in stirring it up why dont you actually get an arguement 1st.
Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 10:59 pm
by bss325i
treeseries wrote:i dont think thats a fair comment? depending where you read there is hardly a huge difference in power. i've seen 318is quoted at 140bhp and 325i's at 170bhp. i cant see it being that hard to squeeze 30bhp out of it. in a car that would obviously weigh less than the 6pot i cant see you would need 30bhp to be on a par with the standard 2.5(power to weight etc) then theres the handling. from personal experience i believe the IS handles better than the standard 2.5. then theres the loss of power both cars would have due to age so a well looked after, well tuned IS with a few tweaks could quite easily have MORE power than a STANDARD 2.5. so before you jump in stirring it up why dont you actually get an arguement 1st.
It wont have the tourque of a six and tourque is what counts. The weight difference isn't that great either, maybe 30kg?
Lets not provoke another pointless 325i/318is debate as its been done to death and the only true answer is use what suits your needs best.
Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 11:04 pm
by treeseries
and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time". if we all spent as much money as some with cosworth lumps, i dont suppose you'd have a problem, but not all of us have open wallets, a motorsport background, age, or 50 years ncb on our side. my car is a daily runner and i'd just like a bit more oooomph, how often is your car driven to the shops or school with the kids. cos your sig reads its currently resting?
Re: any decent power figures from 318is?
Posted: Fri Feb 08, 2008 11:06 pm
by treeseries
4 pots are the best

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 5:55 am
by wiledw

i sense trouble brewing
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:11 am
by chu346
treeseries wrote:4 pots are the best

12pots are best

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:14 am
by treeseries
12 pots are the best
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:17 am
by treeseries
this 6 pot/ 4 pot argument makes me laugh everytime. cos its not even 6 pot/ 4 pot its actually an arguement between the 318is and the 325is crowd. which is a shame really cos thats the only decent car they have. but the 4pots have 318is the 320is and the mighty M3.
sorry im joking, lock this before it goes any further
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:33 am
by jibowski

not this old chesnut again, oh dear. theres a multitude of shit cars to flame out there you know
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 12:43 pm
by chu346
jibowski wrote:multitude of shit cars to flame out there you know
Rover metro
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 12:45 pm
by march109
austin alegro is another.
N/A tuning is big money if you want mental power with any engine, my old IS was plenty quick for a few simple mods. Kos' was a beast.
No such thing as a UK 325is lads, thats just a lazy way of saying Sport.
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 3:02 pm
by fuzzy
treeseries wrote:and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time". if we all spent as much money as some with cosworth lumps, i dont suppose you'd have a problem, but not all of us have open wallets, a motorsport background, age, or 50 years ncb on our side. my car is a daily runner and i'd just like a bit more oooomph, how often is your car driven to the shops or school with the kids. cos your sig reads its currently resting?
i think youll find im a 37 year old joiner and not loaded in any way, i have no motorsport background either. my car is undergoing some rebuilding work as i blew the gearbox and dont have a spare £1000 at the moment but previously it was an everyday car lugging my tools to building sites and is not a show car or pampered in any way.im just an everyday joe who struggles the same as most.
i hope your car isnt a daily runner since youve said in another thread that you have been banned. but then i suppose if you get caught again youll just come on and winge like a little girl about that as well.
i like to wind up the 1.8 owners as they are so insecure they bite every time although my original comment still stands. youll spend lots of cash to get an engine with less power than a standard 2.5.
well tuned IS with a few tweaks could quite easily have MORE power than a STANDARD 2.5. so before you jump in stirring it up why dont you actually get an arguement 1st.
thats your argument? a well tuned engine beats a standard? wow what a shock that is. i didnt see that one coming

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 3:44 pm
by agreen
spend a few hours on
www.m42club.com just do search for more bhp , 2.1 supercharged, chipped hester plate
etc etc some very good info only on the m42 which is all you need
hth
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 8:36 pm
by ShepsEvo3
treeseries wrote:and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time".
I seriously doubt that figure and I have my reasons and not just because I don't believe it from the mods he had, but having said that a good 12-15bhp can be had out of an M42 by just a re-map. Anything over 150BHP and you are looking at spending alot of money on cams, upping the CR to make the cams work and head porting to make the whole lot work.
Put said car on a reputable dyno and I bet it will struggle to get over 150bhp and I suspect the fueling will be all over the place too.

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 8:52 pm
by Colonel Sanders
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 8:54 pm
by 1an
[quote="treeseries"]and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time". quote]
yeah alrighte, so when we see the dyno plots ill believe it but otherwise not a chance.
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 8:58 pm
by fuzzy
1an wrote:treeseries wrote:and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time".[/ quote]
yeah alrighte, so when we see the dyno plots ill believe it but otherwise not a chance.
how many bhp does an ac style tail pipe give?
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:00 pm
by ShepsEvo3
1an wrote:treeseries wrote:and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time". quote]
yeah alrighte, so when we see the dyno plots ill believe it but otherwise not a chance.
1an.... he did have a dyno plot

But then I had a dyno plot for a Suzuki Ignis Sport 1.5vvti with 147bhp from the same dyno after a "re-map" which then only made 117bhp on my dyno. A remap from me with the Uni-Q and that figure went upto a much more believable 123bhp. Standard output for that car is 115bhp.
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:02 pm
by ShepsEvo3
chu346 wrote:treeseries wrote:4 pots are the best

12pots are best

But I'll settle for 10 pots

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:05 pm
by 1an
ShepsEvo3 wrote:1an wrote:treeseries wrote:and another thing kos had a 318is maybe still does? featured in total bmw running 162bhp, with ac style tailpipe, k&n panel filter, heater plate removed and a remap. not much money spent for a car and i quote "will give a 325i a hard time". quote]
yeah alrighte, so when we see the dyno plots ill believe it but otherwise not a chance.
1an.... he did have a dyno plot

But then I had a dyno plot for a Suzuki Ignis Sport 1.5vvti with 147bhp from the same dyno after a "re-map" which then only made 117bhp on my dyno. A remap from me with the Uni-Q and that figure went upto a much more believable 123bhp. Standard output for that car is 115bhp.
sounds like a nice miss calibrated rolling road to me,
your remap on that suzuki is quite believeable from what i know of your mapping skills.
Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:10 pm
by fuzzy
ShepsEvo3 wrote:chu346 wrote:treeseries wrote:4 pots are the best

12pots are best

But I'll settle for 10 pots

3 decent 4 pots would do me and none of that bmw sh1te

Re: any decent power figures from 318is?
Posted: Sat Feb 09, 2008 9:12 pm
by ShepsEvo3
1an wrote:sounds like a nice miss calibrated rolling road to me,
your remap on that suzuki is quite believeable from what i know of your mapping skills.
Thanks 1an!
I am unsure. I am not "dissing" the dyno, I genuinely thought 160+ was achievable from an M42 just by re-mapping. Its a pretty good engine, but since everyone else seems to struggle with extracting that sort of power out of it, its pretty unbelievable. I'd like to see that car on Sal's, Bexleys or my dyno.
Don't get me wrong, most BMW's you can extract some impressive worthwhile gains from, but fudging figures just creates bad feeling and a poor reputation. You certainly won't hear me upping figures to impress owners, I'd look a pr1ck if they took it to a dyno day and it made 20 bhp less lol. 4 to 5 bhp yes, as the car can vary that much with fuel, dirty air, etc.. but 30 bhp in the case of that Suzuki, which was a race car! Lap times were the same before and after, where he was 2 seconds quicker after my remap.

Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 11:37 am
by treeseries
fuzzy wrote:
thats your argument? a well tuned engine beats a standard? wow what a shock that is. i didnt see that one coming

no actually fuzzy it was your arguement that it wouldnt??? you said i could spend alot of money on a 318is and it still wouldnt be as quick as a standard 325i but in the above quote you agree with me? what side of the arguement are you on?
and to everyone else in relation to kos's bhp i can only give you the figures i have, i neither have reason to believe or question them but they are what i have. so if they are true which i think would be possible thats not alot of money to have a car as quick as a STANDARD 325. point proven i win. i only wanted to know of some mods to do to my car to get it a bit quicker or more responsive but the children of the site lowered the tone again.
Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 4:05 pm
by 1an
treeseries you obviously havent read what shepsevo said have you?
Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 5:16 pm
by treeseries
what about the badly calibrated dyno? thats fair enough but as i said i can pnly give you the figures i have? unless there was something else i missed? i havent slept for about 37 hours sorry
Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 6:52 pm
by ShepsEvo3
treeseries wrote:what about the badly calibrated dyno? thats fair enough but as i said i can pnly give you the figures i have? unless there was something else i missed? i havent slept for about 37 hours sorry
Have you got Kos's old car?
The dyno would have to be wildly out of calibration to have figures as far out as what I've seen.
Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 9:26 pm
by treeseries
well im gonna do a few things to mine and then you find me a rolling road and we'll see how well one of these bad boys really performs!
Re: any decent power figures from 318is?
Posted: Sun Feb 10, 2008 9:27 pm
by ShepsEvo3
treeseries wrote:well im gonna do a few things to mine and then you find me a rolling road and we'll see how well one of these bad boys really performs!
Your more than welcome to my dyno.... Castle Combe in Wiltshire if that aint too far from you?
Re: any decent power figures from 318is?
Posted: Tue Feb 12, 2008 11:01 am
by pacerpete
IS owners should stick to gloating about their fuel consumption figures, thats the only arguement they will ever win !

Re: any decent power figures from 318is?
Posted: Tue Feb 12, 2008 11:30 am
by ShepsEvo3
pacerpete wrote:IS owners should stick to gloating about their fuel consumption figures, thats the only arguement they will ever win !


Re: any decent power figures from 318is?
Posted: Tue Feb 12, 2008 11:54 am
by hoshy
I'll take you on round the track any day pete
