Choices, choices... E30 318is or E30 325i Sport?

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Mon Jan 08, 2007 8:05 pm

Hey folks,

I'm new enough around here, but after driving a friend of mines E30 M3, I am hooked! Unfortunately due to the fact that I'm 22 and live in Ireland, it's impossible for me to get insured on one.

So, at first I was looking at the 325i Sports but discounted them due to cost. Then the same friend told me about 318is's, so I set about with the plan to buy one in the best nick possible, chip it, fit a decent exhaust and induction kit, and fit an LSD and be done with it - looking at about 160bhp from what I've read?

Today my insurance renewal arrived on my current weekend car (2000 Rover Mini Cooper) and it was about half the price I was expecting. Even better, a 318is was only another ~£130 to insure and a 325i sport about an extra ~£240 to insure (not a huge increase on initial ~£600 premium).

So suddenly a 325i Sport was in the picture.

I do fairly high mileage (maybe 15000 miles/year in my private car - have company car too which at the moment is doing 5000 miles/month as I'm not using the Mini!), so fuel consumption is a bit of an issue - how much thirstier is a 325i Sport?

Also, Ireland being Ireland, tax is ┚¬821 (approx £550) on a 325i and ┚¬511 (approx £350) on a 318is for a year.

If I import one, we also have a beautiful thing called import tax - it's about ┚¬1000 (£670) for a 325i Sport and ┚¬350 (£230) for a 318is. So £450 more

So I'm looking at about £300/year and £450 more initially (not including how much more a 325i Sport costs) to run one, without fuel.

My question basically is - is it worth it??? Considering my budget would be about £2200 for the car - would I be better off buying as mint a 318is as I could find? I'd be happy enough with 160bhp in the long run!

There is a 325i Sport for sale over here for ┚¬5k at the moment which is tempting me (about a grand more than it'd cost to bring over a mint 318is.. if I could find one!), but I really would like to know how thirsty they are before I commit to anything!

Sorry for the long first post, but really hope to be joining you guys in E30 ownership soon :)

Mark
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Mon Jan 08, 2007 8:07 pm

325i sport......definatley. Welcome by the way.
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Mon Jan 08, 2007 8:11 pm

yep definitly the 325i as you cant beat that sound from the straight six
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Mon Jan 08, 2007 8:12 pm

i pmed ya boss
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Mon Jan 08, 2007 8:15 pm

It won't be a particularly great Sport for £2200 - personally I'd go for a good 318is.
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Mon Jan 08, 2007 8:17 pm

how much will it cost you to tune the 318is up to the power of a standard 325? if the costs are similar to importing and taxing a 325 then better to go with that
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Mon Jan 08, 2007 8:56 pm

Hmm,
Cheers for the replies lads.. Seems to be a majority 325i vote, and I suppose I hadnt really factored in the fact that tuning the 318is might cost a fair bit..
What kind of MPG do people get from a 325i?
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Mon Jan 08, 2007 9:04 pm

between 10 and 35 mpg depending how its being used.
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Mon Jan 08, 2007 9:15 pm

I gotta 325 (not a sport :( ) I do quiet short trip's usually and my in car computer say's 18-19 mpg average. On motorway over christmas i averaged 25 mpg, that dropped a couple as my speed increased (not that i'd ever break the speed limt winkeye ) Not sure if that sound about right for a 325? Any help to you? Also how economical would a 318is be when tunned?
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Mon Jan 08, 2007 9:30 pm

Stick a MAF on the 325i instead of the AFM and you can easily achieve 30mpg average, with better throttle response and power! Possibly not 30mpg with a Sport though, owing to the lower gear ratios of the close-ratio gearbox...
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Mon Jan 08, 2007 9:33 pm

OK... my mind might be made up for me.

My mate has found me my ideal 318is and in this country too for a bargain price in perfect nick etc.

Going to see it soon so I might be posting it up here soon :D
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Mon Jan 08, 2007 9:54 pm

GingerTim wrote:Also how economical would a 318is be when tuned?
Kos' old 318iS had a live remap, removed the throttle plate and put in a K&N Panel filter, and his was easily as fast as a 325i and he managed to get on average about 40 mpg... and the mods cost him a total of under £300
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Mon Jan 08, 2007 9:56 pm

you will never get 35mpg from a 325i i don't care what anyone says. You can get 30 just with cruise control on the motorway for a whole tank at 65-75mph
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Mon Jan 08, 2007 10:09 pm

Iv never seen more than 26mpg but i read somebody achieved 35mpg and didn't want to offend.
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Mon Jan 08, 2007 10:10 pm

Cheers lads - I'd be happy with anything over 30!

Furthermore.. I have a question about LSD's..

What LSD's will fit a 318is?
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Mon Jan 08, 2007 10:18 pm

Standard ratio is 4.1, something around there would suit best.
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Mon Jan 08, 2007 10:46 pm

Best bet would be a 3.91, as trying to find a 4.10 is ny on impossible, i've only seen 1 for sale and he wanted £400 for it 8O

Personally I would go for the iS too, better on fuel for sure,
stuartgallafant wrote:Kos' old 318iS had a live remap, removed the throttle plate and put in a K&N Panel filter, and his was easily as fast as a 325i and he managed to get on average about 40 mpg... and the mods cost him a total of under £300
Not that expensive to mod either really...

Welcome to the Zone too bud..

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Mon Jan 08, 2007 10:58 pm

Cheers :)

So will a 325i 3.91 LSD go straight on?

Were they fitted to the E28 too?
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Mon Jan 08, 2007 11:07 pm

stuartgallafant wrote:
GingerTim wrote:Also how economical would a 318is be when tuned?
Kos' old 318iS had a live remap, removed the throttle plate
Can you tell me more about this mod please Stuart?
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Tue Jan 09, 2007 12:16 am

Commited wrote:Cheers :)

So will a 325i 3.91 LSD go straight on?

Were they fitted to the E28 too?
It will go straight on, with no mods what so ever... 8) You lose a little on your top end, but gain some better acceleration through the lower gears..

I'm not sure if they were fitted to the e28 tbh :? so can't help with that one my friend

HTH

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Tue Jan 09, 2007 12:17 am

SPADGE wrote:
stuartgallafant wrote:
GingerTim wrote:Also how economical would a 318is be when tuned?
Kos' old 318iS had a live remap, removed the throttle plate
Can you tell me more about this mod please Stuart?
Are you refering to the plate spadge??

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Tue Jan 09, 2007 6:04 pm

Pal318is wrote: It will go straight on, with no mods what so ever... 8) You lose a little on your top end, but gain some better acceleration through the lower gears..

I'm not sure if they were fitted to the e28 tbh :? so can't help with that one my friend

HTH

Pal
Excellent!

I'll leave anymore questions until I actually buy one - I have loads!
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Tue Jan 09, 2007 6:40 pm

BTW, a 3.91 LSD will increase the gearing very slightly over standard (4.1), not lower it. So you will loose a little acceleration and increase top speed. Or am I confused again...
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Tue Jan 09, 2007 8:22 pm

Reggiegasket - I thought that this was the case, and after some reading it would appear that you are correct :)

Seeing as I'll be using it mostly as a cruiser - 3.91 will do fine!
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Tue Jan 09, 2007 10:29 pm

reggiegasket wrote:BTW, a 3.91 LSD will increase the gearing very slightly over standard (4.1), not lower it. So you will loose a little acceleration and increase top speed. Or am I confused again...
:o:

Wrong way round, apologies...I knew what I meant, just came out back to front..

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Tue Jan 09, 2007 10:33 pm

stuartgallafant wrote:
GingerTim wrote:Also how economical would a 318is be when tuned?
Kos' old 318iS had a live remap, removed the throttle plate and put in a K&N Panel filter, and his was easily as fast as a 325i and he managed to get on average about 40 mpg... and the mods cost him a total of under £300
Fair play to him! Mine has only once been 25 mpg and it did not stay that high for long!
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Wed Jan 10, 2007 12:15 am

the highest ive seen is 22.6mpg in my 325i se with jus stop/starts town driving and shes crying out for a service so higher is achievable
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Wed Jan 10, 2007 6:24 pm

Ouch. I dont think I could deal with 23mpg! Think 318is is the best for me at the moment :)
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Wed Jan 10, 2007 6:59 pm

stuartgallafant wrote:
GingerTim wrote:Also how economical would a 318is be when tuned?
Kos' old 318iS had a live remap, removed the throttle plate and put in a K&N Panel filter, and his was easily as fast as a 325i and he managed to get on average about 40 mpg... and the mods cost him a total of under £300
I wouldn't call it easily...although it's certainly close enough to be in doubt. Some days you'd get the jump on a 325, some days he'd get the jump on you. Above 70 on a motorway you have to drop into 4th to keep up with a 325 in 5th.

That's in a straight line of course...
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Thu Jan 11, 2007 10:16 pm

mate! i can get around 38-40 mpg!!!! i am not joking!
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Thu Jan 11, 2007 10:24 pm

right, my iS had the standard 4.10 diff which i killed so i got a 3.64 ( beggars cant be choosers) from justin at etech. with the 3.64 on my car does 100mph in 3rd gear ( as opposed to about 80mph with 4.10) and fuel economy is well improved. dont ask me about the acceleration tho!!! did add some time to the traffic light sprint. i hope this enlightens....
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Thu Jan 11, 2007 10:35 pm

Pal318is wrote:
SPADGE wrote:
stuartgallafant wrote: Kos' old 318iS had a live remap, removed the throttle plate
Can you tell me more about this mod please Stuart?
Are you refering to the plate spadge??

Pal
Yes mate the removal of the throttle plate?
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Thu Jan 11, 2007 10:37 pm

indeed 318iS have a massive heater plate on the throttle body, removing it allows only cold air to get into the engine thus a very small improvment in performance
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Fri Jan 12, 2007 9:29 pm

Going to look at it tomorrow morning :D

Hopefully have some good news for you soon :)
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