less boost more whp?
If I remember correctly changing the load values for the boost solenoid to control higher boost is possible now. I am having a similar deal being done to a custom ECU flash for my car.
FWIW...
There is a self-tuner Evom member (I think in CA - so 91 octane) that swears he has tried every tuning combination and he makes the most power when tuned at 18psi. I can't find the post right now, however.
I know the instinctive thing to do is turn up the boost, but has anyone ever attempted some dyno experimentation at lower boost levels?
There is a self-tuner Evom member (I think in CA - so 91 octane) that swears he has tried every tuning combination and he makes the most power when tuned at 18psi. I can't find the post right now, however.
I know the instinctive thing to do is turn up the boost, but has anyone ever attempted some dyno experimentation at lower boost levels?
thanks! btw, we also have high humidity and warmer climate here. hehe. sorta like florida I guess.
Yes but there is a point at which turbo efficiency, boost spike, additional heat produced by the compressed air from the turbo and the octane rating of your fuel begin to produce diminishing returns when increasing your boost pressure and where that point of diminishing returns is, is modifications, climate, fuel and vehicle specific.
A MBC can bring the boost higher compared to ECU boost control if the pill is not modified. Once the pill is modified, you can get no more boost out of an MBC than you can from the stock solenoid.
In fact, I'm a huge proponent of ECU boost control. Why? Because MBCs are notorious for large spikes, boost creep, and big boost changes from altitude and ambient temperature.
Once set up correctly, ECU boost control is stealth and you will always have the exact same boost curve. You can't say that about an MBC.
The MBC can do nothing additional from what ECU based boost control (via EcuFlash) can do, besides the on the fly adjustment.
A MBC can bring the boost higher compared to ECU boost control if the pill is not modified. Once the pill is modified, you can get no more boost out of an MBC than you can from the stock solenoid.
In fact, I'm a huge proponent of ECU boost control. Why? Because MBCs are notorious for large spikes, boost creep, and big boost changes from altitude and ambient temperature.
Once set up correctly, ECU boost control is stealth and you will always have the exact same boost curve. You can't say that about an MBC.
A MBC can bring the boost higher compared to ECU boost control if the pill is not modified. Once the pill is modified, you can get no more boost out of an MBC than you can from the stock solenoid.
In fact, I'm a huge proponent of ECU boost control. Why? Because MBCs are notorious for large spikes, boost creep, and big boost changes from altitude and ambient temperature.
Once set up correctly, ECU boost control is stealth and you will always have the exact same boost curve. You can't say that about an MBC.
will probably ask him the possibilities of trying a tune for higher boost in the future but I get the impression that he already did his best given all the factors like humidity and fuel quality. wouldn't hurt
to ask if ever I have a new mod that requires tuning.
thanks! btw, nice quote from bertrand russel.
Last edited by bad driver; Dec 7, 2007 at 12:24 PM.
An engine is just a glorified air pump. Give it fuel and a spark and it does its thing.
Of course, in the real world other variables come into play...
you cram more air into a completely stock motor and tell me what happens...better yet post a vid on youtube of your glowing cast iron manifold right before you destory your motor.
glorified air pump yes but there's a whole lot of 'glory'
anyone that knows anything about cars knows that more air means nothing without more fuel, fuel trimming, and timing.
you cram more air into a completely stock motor and tell me what happens...better yet post a vid on youtube of your glowing cast iron manifold right before you destory your motor.
glorified air pump yes but there's a whole lot of 'glory'
you cram more air into a completely stock motor and tell me what happens...better yet post a vid on youtube of your glowing cast iron manifold right before you destory your motor.
glorified air pump yes but there's a whole lot of 'glory'
I'm not sure if you're trying to imply that I don't know anything about cars with this post, because I certainly do.



that is one of the funniest things ive read on here.