CK17

Hey Guys, looking for a little help here. I'm in a discussion with someone who is telling me that for $6500 all in you can "easily" get a 135 bimmer up over 600BHP and that its mostly DIY. I found this very hard to believe since thats a double in HP to the stock car and said so to him. I know that you can increase the turbo boost and change exhaust, even do an ECU flash etc. but can you see huge results like this for such a low cost, and actually put that performance to the ground?
I've only driven M3's and a 645 as far as BMW is concerned so I can't comment on the 135's but surely this guy has to be misinformed? ( or am I way off?)
So if any of you have a 135 or a friend who does and has done mods can you verify?
If this is true then why would anyone buy an M3

_AMG_

I really cant comment on that since I know nothing about 135i's other then the fact that they use forced induction and its probably possible to get it up to 600bhp but not for $6500.
Its easy to extract power out of TT cars though.

Jons95c36amg

To get 600hp on the 135i,335i. You need to upgrade the turbos. Which isnt cheap. I know this because my friend has a modded 335i.

350driver

I had a 335 before I bought my M3, and the 335i/135i have the same N54 twin-turbo engine. With a plug-n-play tune, and bolt-on's (exhaust, downpipes, cat-back piping, upgraded intercooler), 450HP is attainable and the cost could be anywhere around $2,000 - $4,000 (depending on hook-up). Upgrade the turbos, put a meth system in the trunk, add in a little race gas with race tune mapping, among a few other minor mod's to squeeze out more power, and over 500HP is possible. 600HP is pushing it IMO, but I have not been over to e90post.com in a while, so some tuners might be doing some crazy things by now. I would not say it is impossible, but for him to say it can be done "easily" and DIY, that would be doubtful...unless you are one hell of a mechanic + tuner with a dyno.

As for why would one go from 135/335 to the M3? Well the as others say here, "no replacement for displacement". Actually, the M3 has MANY upgraded parts, especially suspension, which was born on the track. Going from a 335, even with upgraded coilovers and suspension, to a M3 is like night and day...not even close to being the same car. The M3 just inspires confidence when driving and just "feels" solid. Only thing I do miss is the torque of the 335, but now that I picked up my C63, I am bringing that back .

Bottom line....start the engine of the C63 while he is standing next to it, and you should not have to say a damn thing.

palerider

reworked stock turbos, turbo back exhaust, race gas tune = 600+bhp

oil coolers are highly advisable but not necessary for the numbers. so easily acheivable for 6500, really even less if you do your own work.

when i had a heavily modded mazdaspeed3 awhile ago, i used to be sponsored and sell parts for a co. named custom performance engineering(cpe) in beltsville, md. they have done alot of work on this platform as well and were one of its early pioneers. its a fun car for the money.

wnunez89

my cousin has a 135i and has close to 600hp (just a little under) he sent his 135 to HPF (horse power freaks) in Oregon, had he's ecu totally remapped, upgraded larger turbos, larger intercooler, exhaust, intake, meth kit and a ton of other stuff. and I think he payed around 8-9k

350driver

Damn you and your signature! I cant stop watching!

CK17

Easily for 6500 if not far less? WOW! I stand corrected. I didn't think that car would handle that power and make use of it without some pretty hefty modifications and also surprised that its a DIY. I wasn't saying it was impossible to hit those #'s for HP, just shocked to see its that easy. To think for 50K you can have a sporty BMW platform with 600+HP... I'm still shocked
PS> the guy i was speaking with said with turbos and exhaust and then a meth injection...so I guess this is right along the same lines with the race gas.

palerider

i was just 2nd guessing myself after what i posted, so i texted a guy i used to work with at my old outfit who tracks the crap out of his 135 and he claimed 510whp for 5-6k is possible. i guess that puts you at 600+ at the crank.

CK17

Thanks, I appreciate all the quick replies...guess even though the new coupe will do a +/- 4.0 0-60 run I better be sure not to underestimate the 135i if I come across any.

buffyclk500

http://youtu.be/bcs_nx7wIpE

found this

hhughes1

$6,000 may get you there but you better have more in reserve in case it grenades.

02Drunkenup

some things that stood out in the description, the 335 is running upgraded turbos at 20 PSI, 96 octane race gas, and the usual JB3 tune, 480rwhp = about 560 crank hp.. not really a surprise that the 335 won, regardless of the mods the Gallardo had (exhaust mods, ECU and "weight reduction").

Plus it doesn't even sound like the cars were in the right gear in the second run, at 55 mph, it almost sounded like the lambo was in 3rd or something

ZephyrAMG

I don't even care about the discussion at hand....I LOVE YOUR SIG....!!!!!
She blows my mind...nice job if you made it yourself...

buffyclk500

oo in the vid the 335 has a jb4 what what i was told by my buddy and down pip and a few more things

the new turbo i think r 6000

AMG-010

C63 vs Tuned 135i
http://www.youtube.com/watch?v=CPxoSQF1-tg

Merc63

No way that was a 520hp C63. It would have walked on him. Thats a stock C63 vs modified 135i.

135i is around 3700lbs, c63 is about 3900-4000lbs.

PC Valkyrie

The 135i is a lot lighter than 3700 lbs. The curb weight is around 3300-3400 lbs. Tested weight by Car & Driver was just over 3400 lbs.

vcruiser

Why don't you just get the new BMW 1M and tune that bad boy

Merc63

I just read that one German tuning company achieved 500hp with just an intercooler, exhaust and tune upgrade. That little thing would rip with 500hp.

bluejae

after watching this vid, i clicked on a few others on the right... and i ended up finding this one

http://www.youtube.com/watch?v=vXYWc...eature=related

i started to read the comments on this vid and if i'm not mistaken, i think i found the OP's discussion. it's talking about $6500 and the other guy is talking about a c63 coupe on order... lol

C6G

The C63 in the video looked like he was just cruising and didn't even know they were going to race. Definitely didn't hear that 6.2 open up. I've personally ran a couple friends N54's with tunes and one with exhaust and intake. Walked on all of them by more than 1 car length.