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1.6 stroke and bore modifications thread
- Thread starter UtahST
- Start date
Compression usually isn't modified by stroking an engine. You'd want pistons with larger domes to increase compression. However, increasing compression, even on a direct injection engine, isn't the direction you'd go on a forced induction engine.
As for revs., I don't think that we really know the limit of the Ecoboost 1.6 unless someone out there is running an aftermarket ECU; the stock ECU is hard limited to 7.5K and there are some guys on this forum spinning that high. I think that even the new formula FF guys are running a lower redline than that for longevity.
As for revs., I don't think that we really know the limit of the Ecoboost 1.6 unless someone out there is running an aftermarket ECU; the stock ECU is hard limited to 7.5K and there are some guys on this forum spinning that high. I think that even the new formula FF guys are running a lower redline than that for longevity.
This is my car (425whp) on a 2867r with 11:1 CR, 33-34psi vs a stock engine on a 2860. While the 2860 car spools a lot faster (1-1.5krpm for max), I make more power off boost.
The biggest limitation to higher revving is a hard code within the ECU. We can currently rev out to 7500, but this can lead to popping intake manifold with Stratifieds Aux Fuel if you accidentally rev past fuel cut and hit ignition cut at the hard code; simply remedied by lowering the rpm limit. I'm at 7200 for now. Anyway, that's the first limitation.
To my knowledge, it is not yet known if the hardware can handle revs over the current hard limit reliably on a stock engine, though signs do point to yes. - Magic 8 Ball
Some Guy On The Internet
The biggest limitation to higher revving is a hard code within the ECU. We can currently rev out to 7500, but this can lead to popping intake manifold with Stratifieds Aux Fuel if you accidentally rev past fuel cut and hit ignition cut at the hard code; simply remedied by lowering the rpm limit. I'm at 7200 for now. Anyway, that's the first limitation.
To my knowledge, it is not yet known if the hardware can handle revs over the current hard limit reliably on a stock engine, though signs do point to yes. - Magic 8 Ball
Some Guy On The Internet
They're tough little engines. They'll reliably hold 34psi stock, actually. I dislike repeating this story because people tend to repeat only the negative, conveniently leaving out all the facts. But, here goes (I'll be brief):
Last July, I participated, along side DHM, in a 3.5 day, 1/2 mile drag event in Michigan when it was still on the stock block. Please keep in mind that my built engine was already paid for, in full. Over the course of the days, I made 19-20 passes in 80? weather. We began on about 30psi, E30ish fuel and slowly turned it up throughout the event until we were pushing 36psi on MS109 fuel. We pushed the engine to see how much abuse it would take and ultimately it suffered catastrophic failure when cyl 3 lost compression. The ringland went, piston melted a bit, and warped the cylinder wall. Best guesstimate was 430-450whp. Outlasting and making power above DHMs own engine failure back in 2014 when he pushed his and more carnage too. Good data came of it, and since, DHM tuned/powered cars are even more reliable and powerful.
Anyway, you're probably now wondering why I don't have the car tuned for more power? Part of the failure was caused by uneven distribution of fuel which is the nature of the aux fuel kit. It becomes a hazard at high levels of power when you need that fuel to combat heat and keep cylinder AFRs balanced. There's a solution coming for that too. Additionally, on ethanol blends, we just don't have the in tank pump capacity to pump that much fuel.
All that to say that I agree; Ford built a great engine (sorry for those that got the bad eggs) and tuning strategy.
As to the experience of driving it: exhilarating doesn't begin to touch it. It's just a flat out adrenaline rush from doing something dangerously unnatural in what could best be described as a death trap. My car is a death trap, and I absolutely want it to be more dangerous.
Some Guy On The Internet
Last July, I participated, along side DHM, in a 3.5 day, 1/2 mile drag event in Michigan when it was still on the stock block. Please keep in mind that my built engine was already paid for, in full. Over the course of the days, I made 19-20 passes in 80? weather. We began on about 30psi, E30ish fuel and slowly turned it up throughout the event until we were pushing 36psi on MS109 fuel. We pushed the engine to see how much abuse it would take and ultimately it suffered catastrophic failure when cyl 3 lost compression. The ringland went, piston melted a bit, and warped the cylinder wall. Best guesstimate was 430-450whp. Outlasting and making power above DHMs own engine failure back in 2014 when he pushed his and more carnage too. Good data came of it, and since, DHM tuned/powered cars are even more reliable and powerful.
Anyway, you're probably now wondering why I don't have the car tuned for more power? Part of the failure was caused by uneven distribution of fuel which is the nature of the aux fuel kit. It becomes a hazard at high levels of power when you need that fuel to combat heat and keep cylinder AFRs balanced. There's a solution coming for that too. Additionally, on ethanol blends, we just don't have the in tank pump capacity to pump that much fuel.
All that to say that I agree; Ford built a great engine (sorry for those that got the bad eggs) and tuning strategy.
As to the experience of driving it: exhilarating doesn't begin to touch it. It's just a flat out adrenaline rush from doing something dangerously unnatural in what could best be described as a death trap. My car is a death trap, and I absolutely want it to be more dangerous.
Some Guy On The Internet
Thread Starter
#15
They're tough little engines. They'll reliably hold 34psi stock, actually. I dislike repeating this story because people tend to repeat only the negative, conveniently leaving out all the facts. But, here goes (I'll be brief):
Last July, I participated, along side DHM, in a 3.5 day, 1/2 mile drag event in Michigan when it was still on the stock block. Please keep in mind that my built engine was already paid for, in full. Over the course of the days, I made 19-20 passes in 80? weather. We began on about 30psi, E30ish fuel and slowly turned it up throughout the event until we were pushing 36psi on MS109 fuel. We pushed the engine to see how much abuse it would take and ultimately it suffered catastrophic failure when cyl 3 lost compression. The ringland went, piston melted a bit, and warped the cylinder wall. Best guesstimate was 430-450whp. Outlasting and making power above DHMs own engine failure back in 2014 when he pushed his and more carnage too. Good data came of it, and since, DHM tuned/powered cars are even more reliable and powerful.
Anyway, you're probably now wondering why I don't have the car tuned for more power? Part of the failure was caused by uneven distribution of fuel which is the nature of the aux fuel kit. It becomes a hazard at high levels of power when you need that fuel to combat heat and keep cylinder AFRs balanced. There's a solution coming for that too. Additionally, on ethanol blends, we just don't have the in tank pump capacity to pump that much fuel.
All that to say that I agree; Ford built a great engine (sorry for those that got the bad eggs) and tuning strategy.
As to the experience of driving it: exhilarating doesn't begin to touch it. It's just a flat out adrenaline rush from doing something dangerously unnatural in what could best be described as a death trap. My car is a death trap, and I absolutely want it to be more dangerous.
Some Guy On The Internet
Last July, I participated, along side DHM, in a 3.5 day, 1/2 mile drag event in Michigan when it was still on the stock block. Please keep in mind that my built engine was already paid for, in full. Over the course of the days, I made 19-20 passes in 80? weather. We began on about 30psi, E30ish fuel and slowly turned it up throughout the event until we were pushing 36psi on MS109 fuel. We pushed the engine to see how much abuse it would take and ultimately it suffered catastrophic failure when cyl 3 lost compression. The ringland went, piston melted a bit, and warped the cylinder wall. Best guesstimate was 430-450whp. Outlasting and making power above DHMs own engine failure back in 2014 when he pushed his and more carnage too. Good data came of it, and since, DHM tuned/powered cars are even more reliable and powerful.
Anyway, you're probably now wondering why I don't have the car tuned for more power? Part of the failure was caused by uneven distribution of fuel which is the nature of the aux fuel kit. It becomes a hazard at high levels of power when you need that fuel to combat heat and keep cylinder AFRs balanced. There's a solution coming for that too. Additionally, on ethanol blends, we just don't have the in tank pump capacity to pump that much fuel.
All that to say that I agree; Ford built a great engine (sorry for those that got the bad eggs) and tuning strategy.
As to the experience of driving it: exhilarating doesn't begin to touch it. It's just a flat out adrenaline rush from doing something dangerously unnatural in what could best be described as a death trap. My car is a death trap, and I absolutely want it to be more dangerous.
Some Guy On The Internet
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