Peak torque out of a B16A


C

ck2718

198bhp/180Nm B16A
Joined
Jul 21, 2009
Messages
22
Just wondering what are some of the peak torque that you guys have seen from a B16A. I recently did a dyno-tune of the Unichip in my EK4 (on a Dynopack) and I'm amazed at the peak torque that my mildly-fettled 214,000km-old B16A puts out.
 
Standard book "peak" torque is ~116lbs/ft...so anything from that to low 120's is a realistic "real world" peak figure for a mildly worked engine...

Still not a bad figure considering a B18C is generally no more than ~130lbs/ft peak as standard

Most N/A breathing mods tend to improve top end power & efficency more than mid-range, thus peak torque figures tend not to increase as much as peak BHP figures..

Decent torque gains are not easy to achieve with a N/A engine without raised compression/increasing capacity/longer stroke etc. More ignition advance "can" help, but too much advance will ruin top end power...
 
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So would you consider a peak torque of 180Nm (almost 130lbs/ft) extraordinary for a mildly worked B16A that has nearly 215,000km on the clock? I'm not sure if I could believe in the dyno graph...
 
Yeah thats a bit of a keen figure IMO...it all comes down to the dyno to be fair...a dyno-dynamics RR will give you the most accurate figures for sure!

My B18C6 with bolt-ons & remap "only" makes 135lb/ft from 1800cc on such a RR. Not record-breaking for sure, but VERY realistic & honest:nice:
 
mine made 260 ;) turbo of course and i think that was an uncorrected number so about 240lb ft... On NA cars i have seen about 140lb on built motors...
 
chrismc_DC2 said:
Yeah thats a bit of a keen figure IMO...it all comes down to the dyno to be fair...a dyno-dynamics RR will give you the most accurate figures for sure!

My B18C6 with bolt-ons & remap "only" makes 135lb/ft from 1800cc on such a RR. Not record-breaking for sure, but VERY realistic & honest:nice:
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Well, I have more than bolt-ons for my B16A. Inside, it has the EK9 cams, valvesprings and pistons. On the outside, it has the DC2R airbox (housing a K&N filter), throttle body (bored to 64mm), intake manifold on the intake side, while the exhaust side has the HKS 4-2-1 exhaust manifold, stock EK4 cat, DC2R B-piping and rear muffler.

Just to be clear, the 180Nm (almost 130 lbs/ft) is at the crank, not at the wheel.
 
blinx9900 said:
mine made 260 ;) turbo of course and i think that was an uncorrected number so about 240lb ft... On NA cars i have seen about 140lb on built motors...
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So 130lb ft on a NA B16A is not unattainable... I guess i can finally sleep easy.

Damn I wish I have 240lb ft... but then my current fuel economy of 14 km per litre (39.5 mpg) would be sorely missed
 
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ck2718 said:
Damn I wish I have 240lb ft... but then my current fuel economy of 14 km per litre (39.5 mpg) would be sorely missed
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yup, when im on the gas hard i get about 10-12mpg but if i drive normal i get near normal b16 mpg which is about 25mpg.
 
Blinx, you havent told him that you cant boost long enough to get bad average ecomomy/tank mileage! lol. you go through the gears in no time.
 
EK9turbo said:
Blinx, you havent told him that you cant boost long enough to get bad average ecomomy/tank mileage! lol. you go through the gears in no time.
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true but i do it so often ;) in the 1100 miles i have put on the new engine (yes the one built over a year ago!) i have used up about 10-12 tanks of fuel :shocked: I never drive the car normally, when i bring it out its GO TIME :D

I like the new avatar btw, i love kitties!!!
 
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