35is, Tuning Update

jleckenby said:
Grey area really, I think if it passes emissions still it's fine. Whether it does actually pass or not though I don't know, I still have the originals if needed.
Click to expand...

Will it pass and should it pass are two different issues, the MOT manual clearly says it's a fail if a cat is removed that was fitted as standard, but as someone said, how will they see with undertrays fitted? :wink:
If it fails the emissions test then you do have a problem.

MOT manual 7.1 Reason for rejection #3 http://www.ukmot.com/manual/7.1/Exhaust-Fuel-and-Emissions
 
Ducklakeview said:
jleckenby said:
Im hoping for 400-420
Click to expand...

This is why I SO want an E89 35is...

400bhp is the stuff of my dreams!

However, as I can't have an e89 due to poor boot space with roof lowered, I'll have to make do with the soon to be mine E70 40d, which with a remap should make 390bhp and 800ftlb of torque :driving:

From a diesel ffs!

Mike
Click to expand...

Will be interesting to see what you think about that...

The diesels can do great BHP and torque,although its for a limited period of time.. Basically its all turbo puff getting the numbers.Loads of stuff is easily doing 400 bhp now,even the hot hatch 2 litres are 360 bhp..


My R35 is currently at 720bhp ish,last car was 510 bhp and Jag was 465bhp and 35is was 400 ish....


You get used to it...
 
I have an E89 35i with aftermarket backboxes. They sound better than stock and the tail pipes look good too but I'd like to go with the downpipe upgrade too. Where can I get them and how much for fitting? I am in West Sussex but am happy to travel.
 
I'm just waiting for my new turbos to turn up then I'll shove these bits on, not sure what hp figure I'll achieve but would be happy with north of 450 on a conservative map.

DMa9pMJ.jpg
9yInFp4.jpg
 
willgill said:
I'm just waiting for my new turbos to turn up then I'll shove these bits on, not sure what hp figure I'll achieve but would be happy with north of 450 on a conservative map.
Click to expand...

You should have no problems getting 500bhp with upgraded turbos using 93 octane fuel. The limitation then comes with octane as we don't have access to ethanol fuels.

Which turbos have you gone for?

I'm over 400bhp at the moment but tempted to grab some DPs and push it a little harder. I've just ordered a pair of 275 Michelin PS4S for the rear so that'll be a load more grip available, the next step logically is more power :driving:
 
sunnydays said:
How much power can the DCT box realistically handle guys?
Click to expand...

The DCT is the most robust transmission that BMW pair with the N54 engine. I've seen people running north of 600bhp without issues if the car is tuned correctly.

If you have a piggyback like the JB4 or use a tuner who doesn't know what he's doing then you could see slip before you even hit 400bhp.
 
I've gone for mmp turbos (TD04HL-19T), no idea when they will arrive so will more than likely shove on the IC & DPs and use the next MHD increment to have some fun till they arrive :)

should I consider different plugs too?
 
Watching thread with interest. I was about to start tuning the 35iS but then I bought a place, had to buy all the furniture and had to buy a Doblo too, so all my fun money disappeared... :roll:

On my wishlist are PS4S tyres, my PSS are hard as nails and I can't put the power down, then FMIC and DCI. I have MHD but haven't flashed it yet. I occasionally get a misfire so I think a coil might be on the way out, partly why I haven't bothered to put MHD on because I suspect it will bitch as soon as I get close to 400 hp. I'm driving back to the UK again this summer and I want to put on the map before I leave ... I'll also get walnut blasting done as it's on 37k now.

Willgill, interested in the turbo upgrade results - a lot of people bitching on n54tech about aftermarket turbos - many people have gone single for reliability and power.
 
stuartinzg said:
Watching thread with interest. I was about to start tuning the 35iS but then I bought a place, had to buy all the furniture and had to buy a Doblo too, so all my fun money disappeared... :roll:

On my wishlist are PS4S tyres, my PSS are hard as nails and I can't put the power down, then FMIC and DCI. I have MHD but haven't flashed it yet. I occasionally get a misfire so I think a coil might be on the way out, partly why I haven't bothered to put MHD on because I suspect it will bitch as soon as I get close to 400 hp. I'm driving back to the UK again this summer and I want to put on the map before I leave ... I'll also get walnut blasting done as it's on 37k now.

Willgill, interested in the turbo upgrade results - a lot of people bitching on n54tech about aftermarket turbos - many people have gone single for reliability and power.
Click to expand...

If your car is more than 4 years old I would just get 6 new coils and be done with it. If you replace one at a time you will always have a nagging feeling that a misfire is around the corner.
 
You must log in or register to reply here.
Back
Top Bottom