What is the best way to get 400 or close to 400 hp?

[fk8mike]

i would say for tuner and guy's who tune their car or are familiar with datalog/tune correction don't be crazy about the fact that you are only on the 91octane map ignition and be afraid to not making power on only 6-8deg of ignition!!

focus on more important:afr/cath temp/fuelpump/knock and boost?

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[seselectronics]

You can get 400 whp on 93 FBO , but the tune will be maxed out the Hpfp hitting 100% mostly time and the turbo will be running around 24 psi at top end and the WG will be less than 1mm ( not recommended) The timing also has to be very sharp. I have mine tuned like this for a couple months, running strong but I don’t know how long could last, maybe the turbo can fail or the worse a drop off pressure on the hpfp at wot .
The car has a crisp response in any rpm range , and puts the power down very well, I have tuned my torque tables correctly and I don’t use any VSA or traction control my car start in default R and Vsa fully off .

 

[fk8mike]

You can get 400 whp on 93 FBO , but the tune will be maxed out the Hpfp hitting 100% mostly time and the turbo will be running around 24 psi at top end and the WG will be less than 1mm ( not recommended) The timing also has to be very sharp. I have mine tuned like this for a couple months, running strong but I don’t know how long could last, maybe the turbo can fail or the worse a drop off pressure on the hpfp at wot .
The car has a crisp response in any rpm range , and puts the power down very well, I have tuned my torque tables correctly and I don’t use any VSA or traction control my car start in default R and Vsa fully off .

i have to be agree on this one! 400whp on 93oct alone is a bit sketch ?

 

[Centripetal]

Too reach 400 hp, you would need a air flow at least 300 g/s.

 

[fk8mike]

Too reach 400 hp, you would need a air flow at least 300 g/s.

more info about this?ive got many 400whp +datalog of fbo's/forged fk8 and g/s don't past 300

 

[kefi]

more info about this?ive got many 400whp +datalog of fbo's/forged fk8 and g/s don't past 300

It's a theoretical calculation that applies to any engine because air is converted into energy and that energy conversion has a formula.

400hp requires about 270cfm, which is about the max of our MAF sensor and stock housing.

I'm not sure at what RPM this calculation is at though, being that horsepower is just a function of RPM and torque. @Centripetal would know, hes the theory wiz.

 

[Centripetal]

more info about this?ive got many 400whp +datalog of fbo's/forged fk8 and g/s don't past 300

What @kefi said. It's too late for good explanation. I will circle back. It is a good rule of thumb.

I'm not sure at what RPM this calculation is at though, being that horsepower is just a function of RPM and torque. @Centripetal would know, hes the theory wiz.

This is mostly true. Some of it has to do with what the crank angle is at the highest pressure.

 

[fk8mike]

It's a theoretical calculation that applies to any engine because air is converted into energy and that energy conversion has a formula.

400hp requires about 270cfm, which is about the max of our MAF sensor and stock housing.

I'm not sure at what RPM this calculation is at though, being that horsepower is just a function of RPM and torque. @Centripetal would know, hes the theory wiz.

this is why i asked more info because ^^ im in this same theory?

 

[Centripetal]

this is why i asked more info because ^^ im in this same theory?

Hint, there's 10% less energy in ethanol: 270 * 1.1 = 297 . Air fuel ratio is also different for ethanol.

I promise. I will post graphs and all sorts of nerdy shit.

 

[turbociv910]

Going back to egts.. TCR type r race teams fight with high EGTs. Honda said the water around headifold ports decrease EGT by 100f to protect the cat.

I don't have a egt probe but i do run my lambda at .78. (11.4 afr) Richer than anyone else ive seen. I would like to try and get to the track with stock cooling system to see if the coolant system capability is increased from not having to cool the higher egt of a stock tune or even some hondata tunes

 

[Centripetal]

Going back to egts.. TCR type r race teams fight with high EGTs. Honda said the water around headifold ports decrease EGT by 100f to protect the cat.

I don't have a egt probe but i do run my lambda at .78. (11.4 afr) Richer than anyone else ive seen. I would like to try and get to the track with stock cooling system to see if the coolant system capability is increased from not having to cool the higher egt of a stock tune or even some hondata tunes

Interesting.

There's still a lot of heat in that area so it might have other purpose than cooling EGT.

It would be interesting to measure coolant temperature in and out of the various areas its routed.

 

[seselectronics]

more info about this?ive got many 400whp +datalog of fbo's/forged fk8 and g/s don't past 300

This was tuned in Florida, hot weather , stock intercooler, stock fuel pump, stock turbo.

 

[turbociv910]

Interesting.

There's still a lot of heat in that area so it might have other purpose than cooling EGT.

It would be interesting to measure coolant temperature in and out of the various areas its routed.

Yeah, just my idea since exhaust gas creates most of the heat in the turbo, maybe would help take the tax off the system since I can run a rich afr unlike most people

 

[kefi]

Let me find the post before anyone quotes me on it, but I remember Hondata recently commented saying that they've found fueling parameters and EGTs don't have much to do with ECTs (even using Ethanol will not result in that much of a reduction) and that what seemed to be most directly linked to ECT increases is simply power output.

 

[GraphiteAZ]

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