[rick100]

Originally Posted by WhiteBeard

Yeah OP, I appreciate your enthusiasm, but please check your numbers as this gives newbies false hope. To gain 70hp on a 328i you need more than 3SI and a tune. Many members here have 3SI, a tune and headers and still they are not anywhere close to 300hp. Besides you'll run into troubles quickly with this kind of mods - exactly what you are bashing on 335s huh

This was all done and redone and talked to death million times. Don't forget about n51 guys who already have 3SI and still realistically make only 180hp on dyno

I ve been running full bolts on for the past yeqr except for the cat back exhaust and i have not had any issues ( knock on wood). As a matter of fact we dont even get threads in the na section with people running into problems when going full bolts on. Except for issues related to mistake in the installation like forgetting to plug in a connector or something to that effecr

Most issues are actually with stock cars and the random idle when tune and they are usuaully something unrelated to the tune itself.

Only issues we used to see was with the ess sc but it seems like ecs gpt theor tune right now

If anything these cars handle bolts on pretty damn well

But i agree that 300 crank hp is unrealistic

270- 280 full bolts on and tune is doable

[IISevv]

Originally Posted by rick100

I ve been running full bolts on for the past yeqr except for the cat back exhaust and i have not had any issues ( knock on wood). As a matter of fact we dont even get threads in the na section with people running into problems when going full bolts on. Except for issues related to mistake in the installation like forgetting to plug in a connector or something to that effecr

Most issues are actually with stock cars and the random idle when tune and they are usuaully something unrelated to the tune itself.

Only issues we used to see was with the ess sc but it seems like ecs gpt theor tune right now

If anything these cars handle bolts on pretty damn well

But i agree that 300 crank hp is unrealistic

270- 280 full bolts on and tune is doable

Thank you for not being a total dick about it. Just to clear everything up I put 300 in the title just to catch attention and because 280 is close enough that for a new owner it makes no difference

[AWSB328iM]

I'm curious how much could be achieved through head porting or if the cams is the limiting factor on flow.

I'm guessing custom cams could achieve that last 10-15 hp, but who's going to make them?

[Needbmwpartzz]

Originally Posted by IISevv

Thank you for not being a total dick about it. Just to clear everything up I put 300 in the title just to catch attention and because 280 is close enough that for a new owner it makes no difference

Just for arguments sake....I agree with op.....add nos to hit the 300hp mark....end of pissing match

[NiNeTyOne]

Originally Posted by IISevv

Dude, I'm not here to argue with you. I made it so new 328 owners could have some fun with their cars. I even said in my article that it would add up to about 290 and not 300 and I specifically said some of my numbers may be off and it's completely based off of what I've seen. The point of it is to have fun

If you would head over the NA thread and invest a little time reading you might not come off like such a tool.

The internet is an amazing thing, in that anyone with an email address can hop onto a forum and suddenly he's Mario Andretti or a world class tuner.

Fact is, some of us have worked with world class tuners, the kind who pay German manufacturers 6 figures for the parameter definitions for their cars so they can be properly tuned fr racing programs (anyone remember why a certain tuner in Alabama suddenly disappeared?).

Then someone comes along who not only has no idea what he's talking about, but hasn't even taken the few hours it takes to get some basic idea of what he's talking about.

For those of us who are only half as smart as the really smart guys out there, people like that are a real annoyance.

Guess which one you are?

Stick to asking questions, you might learn something.

[Welcome to NBA Jam]

Originally Posted by IISevv

Huh...really. So that's why my car dynoed 10 horsepower more after an AFE intake. I'm not pulling these numbers out of my a** I've seen dyno sheets for all of these modifications individually.

Can you post the evidence of the 10 HP gain before and after under identical, controlled conditions with repeated measures?

[rick100]

Originally Posted by AWSB328iM

I'm curious how much could be achieved through head porting or if the cams is the limiting factor on flow.

I'm guessing custom cams could achieve that last 10-15 hp, but who's going to make them?

Whole thread about this in the na section. As far as i kbow one member was working on a custom one but nothing ever came from it. At least to my knowledge

[IISevv]

Originally Posted by AWSB328iM

I'm curious how much could be achieved through head porting or if the cams is the limiting factor on flow.

I'm guessing custom cams could achieve that last 10-15 hp, but who's going to make them?

On e36 and 46's you could gain 50, 60, 70 horsepower with cams...but that's pointless now that you can make that on a 335 with a couple bolt ons

[NiNeTyOne]

Originally Posted by Welcome to NBA Jam

Can you post the evidence of the 10 HP gain before and after under identical, controlled conditions with repeated measures?

I want to see those dyno sheets, with the air temps and the barometric pressure indicated on them.

I've been working with top tier tuners tuning high horsepower street cars as well as race cars with full stand alone setups for years and I'm sorry, but that AFE intake is not going to make 10HP.

Maybe 10 hp with an old airbox running a totally clogged filter vs a brand new setup with a high area cone, but not new OE to AFE, forget it. I've seen both on a flow bench.

I've been doing this way to long to believe in the snake oil half these shops are selling.

[IISevv]

Originally Posted by Welcome to NBA Jam

Can you post the evidence of the 10 HP gain before and after under identical, controlled conditions with repeated measures?

I mod my cars for fun not so I can write a scientific research paper on it. Go look on google there are plenty of posted dyno sheets

[NiNeTyOne]

Originally Posted by IISevv

On e36 and 46's you could gain 50, 60, 70 horsepower with cams...but that's pointless now that you can make that on a 335 with a couple bolt ons

One word, Valvetronic

[WhiteBeard]

Charcoal delete is in the same category as NOS sticker on rear bumper. AFE intake for n51/52 is probably +1hp on a good day. Secondary cats delete is around 5hp max - I had them removed and I haven't even noticed slight difference, only a bit more sound. Have you ever held them in your hand? I did and you can look through and even blow air and there's hardly any resistance. IMHO they are not restrictive on our cars, they are probably 200 cell lol

So the only real gains are headers, 3SI and a tune. Let's go to a BPC and check what they can offer as a max hp/tq gains with headers + 3SI + tune = 246rwhp / 214 WTQ
this is realistically what you are looking at. Don't forget this is for n52 only and with a manual 6MT. So with Auto count in another huge loss/drop in hp/tq

P.S. and this is Dynojet lol, so adjust numbers down accordingly for more realistic numbers

Case closed, nothing to look here, go home

[NiNeTyOne]

Originally Posted by WhiteBeard

Charcoal delete is in the same category as NOS sticker on rear bumper. AFE intake for n51/52 is probably +1hp on a good day. Secondary cats delete is around 5hp max - I had them removed and I haven't even noticed slight difference, only a bit more sound. Have you ever held them in your hand? I did and you can look through and even blow air and there's hardly any resistance. IMHO they are not restrictive on our cars, they are probably 200 cell lol

So the only real gains are headers, 3SI and a tune. Let's go to a BPC and check what they can offer as a max hp/tq gains with headers + 3SI + tune = 246rwhp / 214 WTQ
this is realistically what you are looking at. Don't forget this is for n52 only and with a manual 6MT. So with Auto count in another huge loss/drop in hp/tq

P.S. and this is Dynijet lol, so adjust numbers down accordingly for more realistic numbers

Case closed, nothing to look here, go home

Kaaaa...... BOOM!

[Delta0311]

Originally Posted by IISevv

Huh...really. So that's why my car dynoed 10 horsepower more after an AFE intake. I'm not pulling these numbers out of my a** I've seen dyno sheets for all of these modifications individually.

I call BS an intake won't give you 10hp in the real world. I had a 328 and even had a AFE cai on it and no I didn't gain me 10hp. Also on the dyno you have the hood open and fans blowing cool air. In the real world the hood is closed and your AFE CAI is sucking in hot air form the engine bay. The stock intake is well engineered and does the job of pulling in cold air well.

[Delta0311]

Originally Posted by IISevv

I meant 300 crank horsepower, not at the wheels. They make about 230 stock. Add up all the mods and that's close to 300 crank. Sure not every car will make that but you can make more power than you think. My e36 325is is around 260 horsepower and beats m3's, all it has is a set of m3 cams and a tune. Meanwhile m3 people are making only 50 horsepower more than me and they spent 5 grand on a supercharger. I can't really explain it but the dynos don't lie

I stopped reading at 325 beats M3. My 228 beats M5s, no lie. And my 335 makes Veyrons do U turns when they see me coming.


Ah I'll admit going full retarded. Sorry didn't realize you where saying this in regards to e36 cars.

[jeddo45]

If you get a 328i and expect to mod it for HP gains, you're BMWing wrong.

[rick100]

Originally Posted by WhiteBeard

Charcoal delete is in the same category as NOS sticker on rear bumper. AFE intake for n51/52 is probably +1hp on a good day. Secondary cats delete is around 5hp max - I had them removed and I haven't even noticed slight difference, only a bit more sound. Have you ever held them in your hand? I did and you can look through and even blow air and there's hardly any resistance. IMHO they are not restrictive on our cars, they are probably 200 cell lol

So the only real gains are headers, 3SI and a tune. Let's go to a BPC and check what they can offer as a max hp/tq gains with headers + 3SI + tune = 246rwhp / 214 WTQ
this is realistically what you are looking at. Don't forget this is for n52 only and with a manual 6MT. So with Auto count in another huge loss/drop in hp/tq

P.S. and this is Dynojet lol, so adjust numbers down accordingly for more realistic numbers

Case closed, nothing to look here, go home

Mine is automatic awd. Dynojet 231 whp full bolts on so thats probably the number for other than 6 speed rwd manual

260- 270 crank if we consider 15 -20 % loss .

Nice little bump . Car def feels stronger but far from fast

Btw the 250 whp was with the other alpha tune brom bpc which is not their regular tune. I cant remember why but there was a reason for not running that tune daily as it is more of a off road tune.

[feuer]

Originally Posted by racermp

I read again and I understand what you are trying to do. here's my take tho, modding a car usually makes it less reliable, give it worse mpg however benefit is power. sometimes. a good used 328i would be around 6k or so. similar 335i would.be around 8k. say like 07. 335i has it's fair share of issues, but factory car with 300hp is better than modded car with 300hp. just all the testing and development that goes.into a factory car.

Decade old 335i that you will get for $8k won't put out 300hp as will probably constantly kick into limp mode when pushed hard lol

[desertman123]

Originally Posted by feuer

Decade old 335i that you will get for $8k won't put out 300hp as will probably constantly kick into limp mode when pushed hard lol

Exactly.

This thread reminds me why I barely visit E90Post.

- An $8k 335i is gonna instantly turn into a $10k+ 335i.

- 300hp out of an N52? LOL. I wish, but no.

- 325i beating an M3? I'm gonna need proof.

[Taskmaster]

I gained about 40whp or so with bolt ons, More on the way soon too.

252whp STD correction, about what 300hp crank up cars like the Mustang V6 and 350z recipe put down

[Taskmaster]

Originally Posted by NiNeTyOne

One word, Valvetronic

Lol, no you couldn't. You're not wrong on N52s brushing 300crank Hp (I have a BPC dyno sheet of their 3 stage car with nearly 260whp, and one with a hacked manifold and E85? With over 280whp)

But a set of Schrick 264/248 cams on a M54B30 was worth 10whp at peak and 15whp max (near redline) on a full bolt on a car. I know because I compiled the E46 non m dyno thread.

[KiwiRD]

Did the US never get the 272hp 330i?