just had my car dyno'd yesterday, according to carl its about what he expected - 160hp at the wheels, which is approx 200hp at the crank. my set up is 3.5l, all stock, with motronic 1.3. would be interesting to see the numbers/curves on a bunch of different variations - dual webers, trip webers, cam, stroker, etc etc - if you got em, lets see em.
show me the dyno!
- Thread starter alanmcg
- Start date
Ineresting...
that the stock 3.0 CSi engine from almost 40 years ago makes 200hp with the same torque and a big, broad power curve... perfectly balanced and still one of the coolest looking induction systems ever.
that the stock 3.0 CSi engine from almost 40 years ago makes 200hp with the same torque and a big, broad power curve... perfectly balanced and still one of the coolest looking induction systems ever.
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Piano piston motor dyno results
I had a blast doing my first dyno run in November last year, about a year after Don Lawrence installed my B34 10:0.1 compression ratio motor with L-jetronic intake and Motronic 1.3. I added Coupeking's exhaust system (B35 manifolds, stainless downpipes, etc) in mid-Summer, mostly for sound, but I got at least 20 more horses too. The dyno results were 197 wheel horsepower and 217 lb ft of torque but I was plagued by a lean mixture up until 5,000 rpm which is holding some ponies back clearly. She pings under load sometimes even with premium fuel. Still 233 hp ain't bad and it can only get better with a proper 13:0.1 ratio.
Here's footage of my run...
There's some gremlins in my Motronic pieces or AFM, air leaks, etc. What do you expect with 20+ year old parts? But a lot of this will be resolved soon when I have Megasquirt installed with a new MAP sensor for air metering.
Can't wait to get the dyno results after that!
I had a blast doing my first dyno run in November last year, about a year after Don Lawrence installed my B34 10:0.1 compression ratio motor with L-jetronic intake and Motronic 1.3. I added Coupeking's exhaust system (B35 manifolds, stainless downpipes, etc) in mid-Summer, mostly for sound, but I got at least 20 more horses too. The dyno results were 197 wheel horsepower and 217 lb ft of torque but I was plagued by a lean mixture up until 5,000 rpm which is holding some ponies back clearly. She pings under load sometimes even with premium fuel. Still 233 hp ain't bad and it can only get better with a proper 13:0.1 ratio.
Here's footage of my run...
There's some gremlins in my Motronic pieces or AFM, air leaks, etc. What do you expect with 20+ year old parts? But a lot of this will be resolved soon when I have Megasquirt installed with a new MAP sensor for air metering.
Can't wait to get the dyno results after that!
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Hey Wayne- See you Sunday!
x_atlas0
Well-Known Member
Wayne-
You may want to look into a Miller WAR chip. Based on the dynos I saw on Bimmerforums, just switching to the MAF/tune combo gave very similar results to yours. Since you have a tweaked engine, being able to tune yourself would save you some hassle.
You may want to look into a Miller WAR chip. Based on the dynos I saw on Bimmerforums, just switching to the MAF/tune combo gave very similar results to yours. Since you have a tweaked engine, being able to tune yourself would save you some hassle.
i just ordered the war chip and maf conversion from miller - should have it all installed next week and will post new dyno - according to the guys at miller maf conversin is good for 10ish hp, not sure about the chip, but think another 10ish as well.
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E9Wayne moving East -- resto done and new dyno run #s
Hey guys, long time no chat! I'm on with a new company back east since April 2011 and my girl stayed behind for a full resto at Coupeking. That job is now complete (see the website and projects -- "Nachtblau CS resto" for the work Peter and Erik did since July of 2011). They also did a dyno run now that my Megasquirt calibration is done (thanks to David -- draleu on the board -- for the final computer work). So the B35 mod with Coupeking exhaust got me to 197 whp and 217 lbft of torque. Megasquirt increased the whp to 216 and torque to 245, which equals 261 hp and 296 lb ft of torque at the crank, more or less. Not bad for a stock B35, exhaust and MS modification. See you guys in Virginia soon, including Bill Riblett. My car should be ready to drive out here in two weeks!
Wayne
Hey guys, long time no chat! I'm on with a new company back east since April 2011 and my girl stayed behind for a full resto at Coupeking. That job is now complete (see the website and projects -- "Nachtblau CS resto" for the work Peter and Erik did since July of 2011). They also did a dyno run now that my Megasquirt calibration is done (thanks to David -- draleu on the board -- for the final computer work). So the B35 mod with Coupeking exhaust got me to 197 whp and 217 lbft of torque. Megasquirt increased the whp to 216 and torque to 245, which equals 261 hp and 296 lb ft of torque at the crank, more or less. Not bad for a stock B35, exhaust and MS modification. See you guys in Virginia soon, including Bill Riblett. My car should be ready to drive out here in two weeks!
Wayne
blumax
(deceased)
In SoCal in 2 weeks
Wayne I hope you'll drop by for me to see your final result--I do remember our conversation a few back when you were struggling with the quandry of--to keep or not to keep
Wayne I hope you'll drop by for me to see your final result--I do remember our conversation a few back when you were struggling with the quandry of--to keep or not to keep
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Wayne,
I saw your coupe a few weeks back and it looked amazing, what a transformation! You are going to be very happy.
Chris
I saw your coupe a few weeks back and it looked amazing, what a transformation! You are going to be very happy.
Chris
TodB
Well-Known Member
Dyno results
Not in my coupe, but I do have a B34 based 3.5L stroked to 3.7 and further modded after that (valves, cam, etc.) in my E28 5 series that puts 214 HP and 238 lbs to the rear wheels on a Dynomax dyno which allegedly has a 25% driveline loss compared to 15% on others. That's upwards of 275+ at the crank for HP and well in the 300s for torque if you believe the Dyno hype
. Since then, I've added a bit larger injectors and a wider throttle body which I know/feel bumped it a bit. Its all torque.
Love the M30 motor regardless of what it is in!
Not in my coupe, but I do have a B34 based 3.5L stroked to 3.7 and further modded after that (valves, cam, etc.) in my E28 5 series that puts 214 HP and 238 lbs to the rear wheels on a Dynomax dyno which allegedly has a 25% driveline loss compared to 15% on others. That's upwards of 275+ at the crank for HP and well in the 300s for torque if you believe the Dyno hype
. Since then, I've added a bit larger injectors and a wider throttle body which I know/feel bumped it a bit. Its all torque.Love the M30 motor regardless of what it is in!
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Dino
Hey Tod, I finally got her back to the dyno today - the same type you used (Dynomax). The results after 3 runs were a consistent 197 hp and 204 lb ft at the wheels, which supposedly translates to 233 hp. The car feels as fast as it was a few years back when I had earlier runs before and after megasquirt. My first dyno in 2011 after the B34 was put in and motronic plus CC exhaust delivered 197 hp and 217 lb ft. The next time was 4/12 when Coupe king tested her post resto and the results were 216 hp and 245 lb ft but the ignition advance was excessive and the car pinged a lot - so I backed down soon after.
I wanted a new baseline today as I'm working with Vern to explore some engine smoothing in the initial phase and then more power for the next phase.
It is rather interesting that in my first conversations with Don back in 2009 or so, I told him I wanted a 240 hp engine and I basically have that. But now I want 250 - 260 and hope to achieve that with Megasquirt tuning only. We shall see.
Dyno results
Not in my coupe, but I do have a B34 based 3.5L stroked to 3.7 and further modded after that (valves, cam, etc.) in my E28 5 series that puts 214 HP and 238 lbs to the rear wheels on a Dynomax dyno which allegedly has a 25% driveline loss compared to 15% on others. That's upwards of 275+ at the crank for HP and well in the 300s for torque if you believe the Dyno hype
Love the M30 motor regardless of what it is in!
Hey Tod, I finally got her back to the dyno today - the same type you used (Dynomax). The results after 3 runs were a consistent 197 hp and 204 lb ft at the wheels, which supposedly translates to 233 hp. The car feels as fast as it was a few years back when I had earlier runs before and after megasquirt. My first dyno in 2011 after the B34 was put in and motronic plus CC exhaust delivered 197 hp and 217 lb ft. The next time was 4/12 when Coupe king tested her post resto and the results were 216 hp and 245 lb ft but the ignition advance was excessive and the car pinged a lot - so I backed down soon after.
I wanted a new baseline today as I'm working with Vern to explore some engine smoothing in the initial phase and then more power for the next phase.
It is rather interesting that in my first conversations with Don back in 2009 or so, I told him I wanted a 240 hp engine and I basically have that. But now I want 250 - 260 and hope to achieve that with Megasquirt tuning only. We shall see.
Wayne,
I'd be surprised if you could get much more out of the engine. MS tuning will only optimize the extra goodies built into the engine (cam upgrade, 10:1 pistons, and larger bore/stroke, ported head, etc). You are limited to how much fuel you can throw at it by AFR needing to be above 12/12.5. Any less is a waste of fuel and damages cylinder walls. I see a turbo in your future .
I'd be surprised if you could get much more out of the engine. MS tuning will only optimize the extra goodies built into the engine (cam upgrade, 10:1 pistons, and larger bore/stroke, ported head, etc). You are limited to how much fuel you can throw at it by AFR needing to be above 12/12.5. Any less is a waste of fuel and damages cylinder walls. I see a turbo in your future .
Bwana
Well-Known Member
Is the M30B35 still the best all around engine for turbocharging? Better than the M106?
TodB
Well-Known Member
My coupe, 3.3L, Schrick 284, dual 38s, fresh valve job, did 160ish at the wheels. Very happy with that.
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Thanks, Sven, you would know! Anyway, if I had to do this all over again I would have had Don install a cam and port/polish the head. But I'm convinced there is another 10 - 15 hp here if I can get Megasquirt more dialed in with advance and more fuel under load. But she is plenty quick and smooth too. When Tod drove her at Monterey last year he felt our cars were comparable...Wayne,
I'd be surprised if you could get much more out of the engine. MS tuning will only optimize the extra goodies built into the engine (cam upgrade, 10:1 pistons, and larger bore/stroke, ported head, etc). You are limited to how much fuel you can throw at it by AFR needing to be above 12/12.5. Any less is a waste of fuel and damages cylinder walls. I see a turbo in your future .
RJRuiz
Well-Known Member
Dyno sheet from my Korman Stage II injected M30B34 3.5; Schrick Cam, ported/polished, big valves, fly-cut pistons, Stahl headers. 276 @ crank, slightly lopy idle, pulls like a freight train. Drove from Miami to The Vintage and had a blast!
TodB
Well-Known Member
Wow, well done! Those bigger valves help a ton.