any decent power figures from 318is?

[ShepsEvo3]

LOL, quite! But I was pretty impressed with it nonetheless, especially it being a 1.6. However, it didn't really feel quick if you know what I mean.

[tim_s]

yeah i find all vtecs a bit like that, they make a wicked noise though! and yeah, 200bhp from 1.6 is nuts! a guy i used to work with had his s2000 go through a bottom end in 40k miles though, which was none too impressive. he did nail it everywhere, but still!

[e30bmlover]

my engine prob cost somewhere around what e30bmboy has spent on his i'd imagine. it's faster.

how much did your engine cost to do tim? i wouldnt like to say yours is faster now i have the chip...... dyno results soon...

[tim_s]

my engine prob cost somewhere around what e30bmboy has spent on his i'd imagine. it's faster.

how much did your engine cost to do tim?

Read the above dude

i wouldnt like to say yours is faster now i have the chip...... dyno results soon...

whatever! bear in mind mine has a broader power band and can hold its power til much higher rpm (7k) so its likely to be quicker even if you were to tweak yours to make similar peak power.

[hoshy]

my engine prob cost somewhere around what e30bmboy has spent on his i'd imagine. it's faster.

how much did your engine cost to do tim?

Read the above dude

i wouldnt like to say yours is faster now i have the chip...... dyno results soon...

whatever! bear in mind mine has a broader power band and can hold its power til much higher rpm (7k) so its likely to be quicker even if you were to tweak yours to make similar peak power.

And gearing could be a factor also

[e30bmlover]

my engine prob cost somewhere around what e30bmboy has spent on his i'd imagine. it's faster.

how much did your engine cost to do tim?

Read the above dude

i wouldnt like to say yours is faster now i have the chip...... dyno results soon...

whatever! bear in mind mine has a broader power band and can hold its power til much higher rpm (7k) so its likely to be quicker even if you were to tweak yours to make similar peak power.

as can mine, the rev limiter has been raised........

[tim_s]

dude, you don't understand. I could set my rev limit to 20,000revs, and it wouldn't make the car any faster. to get any m20 to hold it's power to 7k would take quite a bit of work!!!
your car makes peak power at 5,9k, after which the power drops off. basically our engines are idential up to 4k (give or take a few hp) but after that mine makes more power til it's peak power of 183bhp at 6,600rpm or so, whereas yours increases at a lower rate until it's max of 170bhp at under 6k rpm, then it tails off. With a stronger inlet cam in mine I'm hoping from about 3k upwards to make more power and keep the power all the way to past 7k.
here's a rough pic to show what i mean - obv just for illustration and hardly very accurate

actually it's a bit conservative for mine, it makes more power than the line I've drawn in. note how yours is starting to tail off at the end of the graph.

anyway all that's beside the point. if it was just about power i'd have chucked in an m52. I've been trying to show that there's more to it than just power - economy, reliability etc. that's before even bringing in the fact that an IS shell weighs 1125kgs, so it's not just a lighter engine/box etc but a lighter car

[e30bmlover]

right.......... well we shall see what the differences are with the chip.... tbh im not expecting allot for the £30 i paid but it feels more responsive and torque and power has improved im sure of it!

[tim_s]

right.......... well we shall see what the differences are with the chip.... tbh im not expecting allot for the £30 i paid but it feels more responsive and torque and power has improved im sure of it!

why didn't you 2.7 or 24v it dude? that way you would've made more power/torque than mine!

[e30bmlover]

right.......... well we shall see what the differences are with the chip.... tbh im not expecting allot for the £30 i paid but it feels more responsive and torque and power has improved im sure of it!

why didn't you 2.7 or 24v it dude? that way you would've made more power/torque than mine!

give it time.....

[treeseries]

why do people keep saying start with a bigger engine? i only want to upgrade my Is slightly so that its a bit more responsive etc i dont wanna extract mega power from it i'd just like it as my daily to be a bit nippier bit more poke for not alot of cash. thats all. im not expecting 1200bhp just a bit more go. im currently building a 5litre v12 twin turbo using the 750 lump so i cant see the point in wasting money on gettin the IS upto 250 bhp or less for that matter, i only ever wanted to know if there were a few bits that could be worked on for little or no money to improve it. if i did want a huge power figures i would obviously start with a bigger engine it goes without sayin.hence 750 lump.

so without people going off on a tangent the question still remains what can i do to the existing m42 lump without changing it for an m3 lump or spending 1000's to give it more oomph if the answers nothing or you think im wasting my time please dont reply. however if theres a chip or throttle body or an airfilter you can recommend please do your comments would be greatly appreciated.

[agreen]

zone chip developed on my 318is - gave me a proven dynoed on the day before and after . . . . . . . . . . . . EXTRA 12BHP ,
and transformed the driving feel of the car £40 and your laughin mate get it and then you will be happy im sure

see the evolve section of this forum at the very top of all the pages

hth

[toby]

treeseries, what's your budget?

People have already suggested a remap. This has been suggested as the best value for money as the 318is benefits from this particular mod.

I wonder why more people on here haven't tuned the 318is too.

[treeseries]

i dont have a budget but nor do i need to throw money at this car due to other buils but i do think its got plenty of room for potentail.

[agreen]

People have already suggested a remap. This has been suggested as the best value for money as the 318is

i cant see a re map at say £400 is gonna give much more gains then a £40 zone chip myself ?

[ShepsEvo3]

People have already suggested a remap. This has been suggested as the best value for money as the 318is

i cant see a re map at say £400 is gonna give much more gains then a £40 zone chip myself ?

Has anyone tried?

[toby]

People have already suggested a remap. This has been suggested as the best value for money as the 318is

i cant see a re map at say £400 is gonna give much more gains then a £40 zone chip myself ?

Maybe not £360 worth more gains but there will be potentially more.

Obviously you can't see unless you observe it.

You asking for ideas yet seem unwilling to accept suggestions. What have the M42 forums thrown up? Any different suggestions?

How much are you willing to spend and on what? To change what aspect of the car's delivery?

[oakey]

A set of cams and a remap will surely see a nice increase?

[agreen]

he has a good point there do you want it to rev quicker lighter flywheel , reducing turning mass etc , or acctually more bhp/torque chips re maps etc

as someone told me not so long ago and it took me a while to get my head around

YOU MUST HAVE A BUDGET

a realistic one at that or you will have a car off the road for years

[agreen]

A set of cams
_________________

this will push the already high power band even higher up the rev range , leaving the bottom end dead and empty dependent on what cams you go for be warry of that , you need to speak to the cam manufacturers for info like this though and see what they surgest

but as oakey said can give good gains

but without a budget we can only sugest things from £40 chips to £4000 supercharger units

[oldroydsr4]

The I.s has a very heavy fly wheel.

This is the first area i would start if i liked weedy 4pots.

[agreen]

The I.s has a very heavy fly wheel.

This is the first area i would start if i liked weedy 4pots.

# i can se you dont like them or you would have known the earlier "is"'s cam e with the m40 single mass flywheel which is not that heavy

however the later ones came with the heavier dual mass wheel

no take you 4pot slander else where bo need for it on here idiot !

weedy 4 pots what a wanker

[oldroydsr4]

Now now ,no need for the name calling.

As this thread was origanally based on Kos's I.S, I thought it would be relevant to highlight the fact that he installed an aluminium flywheel, which resulted in a significantly better pick up.


(Agreen: If you use the preview buttom and read though your posts they may make a little more sense)

[Kedge]

Kos never fitted the flywheel, it was always on the things to do list.

I can however vouch for the difference they make but it certainly isn't cheap by any means.

[Jon_Bmw]

Agreen, Hook, line and sinker comes to mind.

You do realise the m42 isn't quite the best engine in the world right? Although I heard with a Evo_S chip they give CSL's a run for there money due to superior handling and kudos factors.

[oakey]

I think an IS on standalone with cams would be a fairly impressive weapon

[hoshy]

I was thinking about this. When the MS is in I reckon you could swap cams and maps in under an hour easily. Not too much to do for night-before-trackday-preparation

Last track day my boss spent a couple of grand on mapping and suspension. Took his seat curpa to around 200brake or so. I spent 75 quid on part worn slicks and spanked him with 140ponies in my 500quid shitter (that's my iS btw ) I reckon he's getting good rubber for next time around so popping in some lairy cams on the sly will give him a run for his money

[oakey]

And with loosing the afm you should gain enough low down and midrange torque to counteract the cams loosing some

[Kedge]

Hoshy, how much of a job is it fitting MS and what are the gains like? I'm looking to go standalone with my rebuild but don't see why i can't get it installed on the current engine in the car now.

[hoshy]

And with loosing the afm you should gain enough low down and midrange torque to counteract the cams loosing some

I wouldn't be too worried about any low-end torque losses on the track. I was keeping the revs well up... My gearbox wasn't thanking me though

Kedge. don't wanna hi-jack mate so I'll pop a thread up: http://www.e30zone.net/modules.php?name ... &p=1007668

[treeseries]

whats ms?

i dont have a limited budget but the car is a daily runner so its time more than anything, i cant afford to have it off road for ages. but as i've said i dont want to throw money at it cos im building bigger things.

and finally i would like more torque. im not worried about top speeds cos its a legal requirement that we do 70mph and i am trying to build a quick car in my other e30, so i just want my IS to get to a good speed quickly. more pull away power i do alot of driving in it week to week and just want to get upto speed quicker?

[hoshy]

Take a look: http://www.e30zone.net/modules.php?name ... &p=1007668

[treeseries]

so what sort of bhp is your car running and with MS can you have 3/4 maps say? economical, accelaration? so that you can just change what map you want whether you were goin to work or if you were out for a bit of a thrash?

[oakey]

so what sort of bhp is your car running and with MS can you have 3/4 maps say? economical, accelaration? so that you can just change what map you want whether you were goin to work or if you were out for a bit of a thrash?

You can yes.

[hoshy]

so what sort of bhp is your car running and with MS can you have 3/4 maps say? economical, accelaration? so that you can just change what map you want whether you were goin to work or if you were out for a bit of a thrash?

Gave the car a very quick power run and it's currently down slightly on peak power and up in the lower revs. But it's not mapped properly so it's good. I'll be posting up final results when I get it properly mapped.