HOW MUCH POWER IS YOUR E30 PUSHING?

[Jon_Bmw]

A good t5 will wipe the floor from any speed. But take one on at 50mph+ and he'll make you look like an idiot!

[Morat]

The cops didn't choose em just because you can put cones and a broom in the back

[munky30]

A good t5 will wipe the floor from any speed. But take one on at 50mph+ and he'll make you look like an idiot!

Agreed... which is why I 'took him on' from a standstill to about 80.



Morat - the police used the t5r.

[ShepsEvo3]

And it got 152.7bhp at the wheels and 150ish lb/ft torque.
I'm lead to believe that the wheels is 20% down on the flywheel figure - can someone confirm? If so, its 190+-bhp at the fly which rocks.

i was told the flywheel figure is usually 10-15% higher than @the wheels but im no expert. couldnt the r/r operator work it out for you? how come some r/r'ds give a flywheel figure and others give at the wheels figures when all measure at the wheels?

My old dyno used to measure power and torque at the wheels only. I used to calculate around 18% losses but depending on what the arrangement was and what car it was. For a car upto 300BHP this proved pretty reasonable and pretty accurate. But since I dyno'd an Invicta the other day on our new dyno it came out as 498bhp at the wheels with 549bhp at the flywheel, had 530lbsft torque too If you took into account 18% losses on that car you would calculate that the Invicta had around 600bhp at the flywheel. Thinking about it, using that method you could get to a point where the flywheel fiqure could seem impossible with the spec the engine was built to?? But dyno's are weird and wonderful things that help people tune thier cars. Figures shouldn't be taken too seriously and you should always uses the same dyno for before and after comparrisons IMHO.

Okeys... my cars, on my dyno or the same make of dyno:

318is 147BHP Standard with 170k on the clock.
325i tourer 169BHP Standard 115k on the clock.
M3 Evo2 226BHP Standard but Unichiped with AFM removed.
M3 Sport Evo.. 225BHP Standard, but with shorter stroke 2.3 crank(DONT ASK!!) and Unichipped.
Swift GTi 225 BHP Standar internals supercharged with Unichip and 12psi boost.

[munky30]

Dont you think having so many cars, specifically 2 m3's, is a bit selfish... share the love.

[ShepsEvo3]

Dont you think having so many cars, specifically 2 m3's, is a bit selfish... share the love.

Hey...My Evo2 is a compete 3D puzzle at the moment , The SE is provisionally sold.

[snoops]

And it got 152.7bhp at the wheels and 150ish lb/ft torque.
I'm lead to believe that the wheels is 20% down on the flywheel figure - can someone confirm? If so, its 190+-bhp at the fly which rocks.

i was told the flywheel figure is usually 10-15% higher than @the wheels but im no expert. couldnt the r/r operator work it out for you? how come some r/r'ds give a flywheel figure and others give at the wheels figures when all measure at the wheels?

My old dyno used to measure power and torque at the wheels only. I used to calculate around 18% losses but depending on what the arrangement was and what car it was. For a car upto 300BHP this proved pretty reasonable and pretty accurate. But since I dyno'd an Invicta the other day on our new dyno it came out as 498bhp at the wheels with 549bhp at the flywheel, had 530lbsft torque too If you took into account 18% losses on that car you would calculate that the Invicta had around 600bhp at the flywheel. Thinking about it, using that method you could get to a point where the flywheel fiqure could seem impossible with the spec the engine was built to?? But dyno's are weird and wonderful things that help people tune thier cars. Figures shouldn't be taken too seriously and you should always uses the same dyno for before and after comparrisons IMHO.

Okeys... my cars, on my dyno or the same make of dyno:

318is 147BHP Standard with 170k on the clock.
325i tourer 169BHP Standard 115k on the clock.
M3 Evo2 226BHP Standard but Unichiped with AFM removed.
M3 Sport Evo.. 225BHP Standard, but with shorter stroke 2.3 crank(DONT ASK!!) and Unichipped.
Swift GTi 225 BHP Standar internals supercharged with Unichip and 12psi boost.

318is standard 147 bhp? i thought they were 136 bhp standard

[gareth]

225bhp in a swift that must be kinda rapid!

[ShepsEvo3]

i was told the flywheel figure is usually 10-15% higher than @the wheels but im no expert. couldnt the r/r operator work it out for you? how come some r/r'ds give a flywheel figure and others give at the wheels figures when all measure at the wheels?

My old dyno used to measure power and torque at the wheels only. I used to calculate around 18% losses but depending on what the arrangement was and what car it was. For a car upto 300BHP this proved pretty reasonable and pretty accurate. But since I dyno'd an Invicta the other day on our new dyno it came out as 498bhp at the wheels with 549bhp at the flywheel, had 530lbsft torque too If you took into account 18% losses on that car you would calculate that the Invicta had around 600bhp at the flywheel. Thinking about it, using that method you could get to a point where the flywheel fiqure could seem impossible with the spec the engine was built to?? But dyno's are weird and wonderful things that help people tune thier cars. Figures shouldn't be taken too seriously and you should always uses the same dyno for before and after comparrisons IMHO.

Okeys... my cars, on my dyno or the same make of dyno:

318is 147BHP Standard with 170k on the clock.
325i tourer 169BHP Standard 115k on the clock.
M3 Evo2 226BHP Standard but Unichiped with AFM removed.
M3 Sport Evo.. 225BHP Standard, but with shorter stroke 2.3 crank(DONT ASK!!) and Unichipped.
Swift GTi 225 BHP Standar internals supercharged with Unichip and 12psi boost.

318is standard 147 bhp? i thought they were 136 bhp standard

Yes that is correct But the 318is does tend to make all the claimed power and then some!

[ShepsEvo3]

225bhp in a swift that must be kinda rapid!

Kinda got that wrong, it's 217bhp actually

Yes fookin quick! There is another one but a Turbo version pushing 245bhp. Its now in a Justy with all wheel drive too.

[Returnof318i]

my 316i auto was dynoed at 200bhp but i do have a shopping list on the window and chrome wipers so hardly surprising. Soon to be purchasing wiper spoilers so my top wiper setting is so fsts you wont even know its raining!!

[jibowski]

my 316i is pushing out 70bhp about 20 less than normal, it takes years of meticulous dedicated lack of oil changes to reduce the piston rings and compression to achieve such a figure

[gareth]

225bhp in a swift that must be kinda rapid!

Kinda got that wrong, it's 217bhp actually

Yes fookin quick! There is another one but a Turbo version pushing 245bhp. Its now in a Justy with all wheel drive too.

sleeeeeeeeeeeeeeeeper!!!!

[SHAKEELE30]

E-nuff!

[m30e30]

had my car rolling roaded on sat at ciruit motors 01249 782596 cheers paul for sorting that out
engine 232.3 bhp
wheels 186.7 bhp
torque 256.5 lbf.ft

[tomstickland]

I've lost interest in measuring power TBH. Even measuring wheel power is not an exact operation, then we have the ridiculous loss figures most max-power rolling roads use, giving meaningless flywheel figures which are then rounded up so that they compete with the total bullshit others make up.

Having said that, my 195K 318iS seems to go pretty well for what it is, so I expect it to be making around the standard power, say 135BHP. Top speed is on a par with my old Astra GTE 2.0 8v, which had somwhere around 132 BHP, but better drag coefficient.

[ShepsEvo3]

had my car rolling roaded on sat at ciruit motors 01249 782596 cheers paul for sorting that out
engine 232.3 bhp
wheels 186.7 bhp
torque 256.5 lbf.ft

No problems mate, was great meeting you. Rekon there's another big chunk of BHP left in her yet

[tomstickland]

What engine is making 260lb-ft?

[ShepsEvo3]

What engine is making 260lb-ft?

Now who's rounding up?

Dave's car has a 3.5 M30 engine. Those figures are for the second run we did, which was different than the first run of 190-odd BHP. I'll let him tell you what was different between the runs if he wants to tell you?

[m30e30]

come on shep that'll be our little secret eh

[m30e30]

my first run was
wheels 157.8 bhp
engine 191.4 bhp
torque 219 lbf.ft
but got told to change the ecu shep recons it is holding it back

[ShepsEvo3]

Not so much the ECU, its the map inside it It was way too lean and I would suspect the timing to be a mile off too.

Come on Dave, let me re-map it with the Unichip You know you wanna!

[m30e30]

how much we talking here

[Andy335Touring]

Thats damn good torque !

[ShepsEvo3]

how much we talking here

You have pm

[tomstickland]

What engine is making 260lb-ft?

Now who's rounding up?

256 is 260lb-ft to the level of certainty we're dealing with.

[tailoutcharlie]

in relation to the title of the thread...

not enough

Ant i want a turbo

[munky30]

What engine is making 260lb-ft?

Now who's rounding up?

256 is 260lb-ft to the level of certainty we're dealing with.

by that token, so is 250.

[Grimmjar]

89´ E30 with M70 ~320 hp + 80hp N2O (at the moment)


Thomas

[fuzzy]

89´ E30 with M70 ~320 hp + 80hp N2O (at the moment)


Thomas

remind me what an m70 is and what model its from. sounds powerful enough without the N02 though

[fuzzy]

Now who's rounding up?

256 is 260lb-ft to the level of certainty we're dealing with.

by that token, so is 250.

if were rounding it up im now saying mine is 300bhp

[Grimmjar]

M70 is a 5.0 V12

[Andy335Touring]

89´ E30 with M70 ~320 hp + 80hp N2O (at the moment)


Thomas

Nice , i take it your from a country in Europe ?

[78dude]

My car is an 1.6 lump who means some where between 100 and 105 bhp.
But 110 when I fart tho.....

[Grimmjar]

Hi Andy,

´m comming from Germany. And at the moment there are some other 350i builders working. M70, S70, M73 all the way...

should be funny next year


Thomas