E36 Dyno Sheet Library

[Rich V]

what does VAC stand for, what company is that?

VAC Motorsports

http://www.vacmotorsports.com/

[Cirno]

Does anybody have their stage 3 head? I almost have enough for that, some schrick cams, and the smaller head gasket. I would like to get some input before I make such a big purchase.

[Gary328i]

Can someone guess-timate what I should expect after installing S52 cams?

Year: 1996
Model: 328is
Build Date: 07/96
Engine Mods:

S52 cams (not yet installed)
OBDI manifold
3.23 LSD
Dinan CAI
Dinan Stage II s/w (non-cam-specific)
K&N filter
UUC System-U exhaust
Fan-deletion
Car came w/o traction control

What should I be expecting after the cams are installed?

Tough to estimate, as the cars vary substantially (not to mention dyno variability), and I didn't see one with cams and non-cam software posted yet. The cam-kit software will add quite a bit, mainly by changing the shape of the curve from the standard s/w. The one thing I will say is that I noticed the cams immediately after the shop put them in, and I had no s/w on the car at that time. It pulled way harder in the higher revs with those put in.

I'd guess 200-210 whp and and 190-200 wtq.

[byron]

Tough to estimate, as the cars vary substantially (not to mention dyno variability), and I didn't see one with cams and non-cam software posted yet. The cam-kit software will add quite a bit, mainly by changing the shape of the curve from the standard s/w. The one thing I will say is that I noticed the cams immediately after the shop put them in, and I had no s/w on the car at that time. It pulled way harder in the higher revs with those put in.

I'd guess 200-210 whp and and 190-200 wtq.

i made 207whp and 185 tq. i think it should have been higher but who knows. had one spark plug that wasnt even screwed in much

[Dinan3atl]

I made 188hp@6000rpm/159lb trq. on a dynapack... thought i should of put down a little more...

[Gary328i]

323? 325?

[Dinan3atl]

325is... new head...

[Dinan3atl]

once i do a few more upgrades im gonna bring it to a different dyno shop and see what the difference is...

[Flup]

Year: 1997
Build Date: 4/97
Mods: M50 manifold, Cosmos CAI, UUC Stage II Flywheel, UUC TSE, 3.23 LSD
Dyno Type: DynoJet
Dyno Conditions: Dry 55°F
Gear Dynoed: 3rd
Peak HP: 202.3
Peak Torque: 196.8

I love that torque curve!!! Are you using any software to go along with the physical mods?

[Jasonv8z]

Pretty new to BMW's, but whats with all the cars running lean at low RPM's? It should be around 13:1 for max power in NA engines. Whats even worse is that detonation is most likely to occur at lower RPM's. I see a lot of room for improvement here.

[Thin Air]

Pretty new to BMW's, but whats with all the cars running lean at low RPM's? It should be around 13:1 for max power in NA engines. Whats even worse is that detonation is most likely to occur at lower RPM's. I see a lot of room for improvement here.

I assume that AFR readings are taken post muffler (a probe in the tail pipe) as opposed to somewhere pre-cat. That would result in a leaner reading too right?

[bjmsdrum00]

anybody got any dyno's or RW HP numbers from a 323???

[ledzep244]

Year:1998 328i 54k miles
Mods: Conforti Intake, Supersprint Exhaust, UUC 8.5 lb flywheel, UUC underdrive pulleys, UUC fan delete, crappy Bosch platinum 4 prong plugs
Dyno Type: A Nice One
Dyno Conditions: Normal
Gear Dynoed:4th
Peak HP: 182.6
Peak Torque: 205

Could have seen a good bit more power with some software and maybe some different spark plugs. It was running pretty rich on the top end and needed that 4200 rpm flat spot tuned out. Check that torque out though.

[jiggynites]

auto or 5sp?

[ledzep244]

auto or 5sp?

If that is directed towards me I would have thought the UUC 8.5 lb flywheel would have given it away. 5 speed.

[jiggynites]

haha duh sorry.
good hp and those torque numbers are really high
your making the same torque as a 3.0 M3 and with sofware
I can see it going higher.

[bene36e39]

Will be installing S52 cams on March 10th with kesslerbmw's help. Looking forward to the added performance.

BTW, does anyone know approximately how crank hp converts to rwhp? e.g. 100 hp = xx rwhp?

[byron]

Will be installing S52 cams on March 10th with kesslerbmw's help. Looking forward to the added performance.

BTW, does anyone know approximately how crank hp converts to rwhp? e.g. 100 hp = xx rwhp?

approx 84-86

[bene36e39]

approx 84-86

So in another word, when a stock e36 M3 with the factory-claiming 240 hp at crank, it only put out say... about 204 rwhp?

That means many of us are either achieving or surpassing that performance here.

[byron]

So in another word, when a stock e36 M3 with the factory-claiming 240 hp at crank, it only put out say... about 204 rwhp?

That means many of us are either achieving or surpassing that performance here.

you can make the same hp but we will never have the tq...the m will be quicker

[bene36e39]

you can make the same hp but we will never have the tq...the m will be quicker

Why? What are the contributing factors?

[byron]

Why? What are the contributing factors?

displacement! .4l

[Jon3sy]

Mods: CAI, AA Chip

Torque seems really low compared to others with M50 and similar mods.
I think my VANOS Solenoid might be bad. Or at least that is what a few people have told me. Any Ideas?

[FXR HRD GT]

ok i dyno'd my car last week
1998 328is
mods- Clutch-fan delete
Dyno- Mustang
Place-the mustang shop in calgary Ab canada
163.8whp
176.3wtq

i was mildly impressed, puts out more hp at the wheels than a 5.0 mustang with cat-back and intake lol

[runetang[1337]]

To the 2 previous posters, your both getting stock numbers, and for the 2nd poster, that's a good thing considering yours is basically stock.

The the 325 guy, 166.8 (might as well say 167) @ the wheels hp is probably 2-3hp more than a 325 makes stock in perfect condition. It's not a reason to be mad or think anything is wrong w/your car, to be honest the chip and CAI would've only netted you 10rwhp at the most on the dyno anyway, so if an M50 dynos around 164-165hp stock, yes you should have like 5 or 6 more rwhp than shown on your dyno.

But we all know about the circumstances and factors contributing to things, whether the machine is calibrated perfect, whether theyre using a fan to blow into your intake, the type of dyno, how how it was that day, how hot your engine was that day, if you needed an oil change, had a bad or loose sparkplug, or if you had any number of other little weird things going on, it would explain that result. It's still higher than stock, 167 vs 164.

Maybe if you get a supersprint exhaust put on there and a performance crank pulley, you'd be seeing 177-180rwhp from your 325?

Personally, 225-250hp crank (190rwhp-215rwhp) is the most I'd ever want, its not that much but with the right gearing (# of gears, final drive ratio), that amount of HP will fly.. especially in a relatively light vehicle. I think I can get that much horsepower, somewhere inbetween those 2 numbers, with my M50 if I put M3 cams, the proper software, and a full breathing exhaust incl. headers & a fake catalytic converter that's actually a straight pipe of sorts, lol.