Increasing Performance of the H6

[Swipez]

All that extra torque must have come from the fact that you have a supercharged H8 engine.
What did the extra 2 cylinder mod cost you?

Hahahahhahaha

[Swipez]

That's relatively conservative for an E85 power figure Cliffo, Engine much be loving you, it would be very healthy I imagine. And yeah lol, E85 is literally 3 min drive from my house.

[HardwareBoB]

That's relatively conservative for an E85 power figure Cliffo, Engine much be loving you, it would be very healthy I imagine. And yeah lol, E85 is literally 3 min drive from my house.

Is it? Where are all the others making more?

[Swipez]

That's relatively conservative for an E85 power figure Cliffo, Engine much be loving you, it would be very healthy I imagine. And yeah lol, E85 is literally 3 min drive from my house.

Is it? Where are all the others making more?

You can make that power on 98 RON. So running E85 on the same power level would make the engine much happier for longer. And a good tune can see more power than this on E85. Why do you hover over this thread with the goal to start arguments? There isn't an awful lot of supercharged h6's running E85 mate. They still are a select handful. Why ask questions in a nature to be negatively received? Just because?

[vertix]

Dr20t is 100% right.

To further this, as someone who has heavily modded their h6, it can be quite frustrating when people throw around these exaggerated figures as if they are the norm, and REALLY disappointing to have your expectations brought down to reality when you see your final results. Is it possible that a few are making those numbers? Sure. From those I have talked to that have also gone down the supercharge path, MOST of us were around 200-210kw with just the supercharger. 230KW with e85 is not necessarily a "safe" or held back tune of some form, its entirely in line with what others are getting.

Some quick reading on this forum will highlight exactly that.

Pudz - ~204kw on p98, ~220-234kw on E85
Cliff - 230kw E85
Myself - 205kw P98
ProjectVelci - 180kw (auto)

Each car will obviously have its own factors/reasoning to the numbers, but it at least gives a rough idea of what to expect. I find it odd that all of this info, which is readily available on these forums, is ignored, in favor of "BUT X TOLD ME HE CAN GET 230KW ALL THE TIME NO PROBS".

I can't emphasis enough how frustrating it is when you jump on the forum and hear really over exaggerated posts/claims, that usually lack any real data (dyno/time slips), which gives you really high expectations that come crashing down after dumping some serious money and time into the car. Posts similar to Dr20t's or Cliffs that offer a more balanced opinion, usually with data help balance this out.

If you are going to go around making claims about what power/mods these cars SHOULD make, go ahead and do it and post some real data. Not this "he said this, he's seen this" BS. Going around calling power figures "safe" or low, is just simply ignorant/uninformed.

[dr20t]

No way in hell an unopened, supercharged h6 is getting to 230awkw on 98 with 9psi. With the same logic (assuming you're not knock limited which you absolutely are on 98), it would be reasonable to assume you can make 270-280awkw at the same 9psi boost on e85. Haven't seen that happen and don't believe I will.

Swipez - you seem really passionate about the h6 which is admirable, however you're very quick to swallow exaggerated marketing hype (and then adding some more exaggeration) without any basis in fact or science, then passing it on as fact to all others. Not having a dig, just suggesting perhaps tone down the exaggeration a little, so youre not perceived to have given a bum steer when others are reading and planning to spend all this dosh in the belief they will make X power, only to be utterly disappointed when they don't.

Once again I don't dislike the H6 ez20r. Infact I reckon its an awesome engine and platform from which to build a fantastic engine. Just trying to give you and those potetntially planning H6 mods some reality checking.

Mick

[PUDZ RSC3.0RB]

No way in hell an unopened, supercharged h6 is getting to 230awkw on 98 with 9psi. With the same logic (assuming you're not knock limited which you absolutely are on 98), it would be reasonable to assume you can make 270-280awkw at the same 9psi boost on e85. Haven't seen that happen and don't believe I will.
Mick

Hey Mick, what about Gino's.

MY06 3rspecb manual sedan, Urban Grey- Raptor Intercooled S/C - air cooled, billet impeller, 9psi, 230kwatw P98 - Vin @ Got It Rex.

[alexeiwoody]

No way in hell an unopened, supercharged h6 is getting to 230awkw on 98 with 9psi. With the same logic (assuming you're not knock limited which you absolutely are on 98), it would be reasonable to assume you can make 270-280awkw at the same 9psi boost on e85. Haven't seen that happen and don't believe I will.
Mick

Hey Mick, what about Gino's.

MY06 3rspecb manual sedan, Urban Grey- Raptor Intercooled S/C - air cooled, billet impeller, 9psi, 230kwatw P98 - Vin @ Got It Rex.

If you guys read my last post again - you'll notice dyno numbers are not the Holy of Holies. They are just a tool for that particular day and car, comparisons to other cars should at least be made on the same dyno, but even then are not necessarily accurate.

Mark's Velocci Lib with the same S/c setup as Gino (IIRC) - made 175kwatw. Add another 20kw for a manual - and it'd have 195kwatw. Is there such a big difference at the engine in reality? Absolutely not.

You can't compare different dynos. You'd just be wasting your time. That's why 1/4 is the best comparison.

Hopefully this message gets through to people eventually.

[3rspecb]

Alexei, Mark and I had different setups and tuners so no point in trying to compare as per your 1st paragraph above.
As been pointed out 1000's of time, dyno kw figure is just a number/reference point. Some will get more and some will get less, that's the world of modification. Jordie, don't get hung up on a number. Focus on the drive ability and enjoy the ride..

[KiDo_Tuning]

That's relatively conservative for an E85 power figure Cliffo, Engine much be loving you, it would be very healthy I imagine. And yeah lol, E85 is literally 3 min drive from my house.

Is it? Where are all the others making more?

Cliffo has 300,000kms on his stock motor.

220Kw on a stock H6, no headers, just catback exhaust on 98
243Kw on E85 midrange power since it fell over after peak torque due to spark misfire
200 odd Kw on 6psi from a run in tune on 98

To put it into perspective, how much power does a 330+g/sec airflow engine make? VF52 max is around 300g/sec to give you an idea

[KiDo_Tuning]

Mark's Velocci Lib with the same S/c setup as Gino (IIRC) - made 175kwatw. Add another 20kw for a manual - and it'd have 195kwatw. Is there such a big difference at the engine in reality? Absolutely not.

You can't compare different dynos. You'd just be wasting your time. That's why 1/4 is the best comparison.

Hopefully this message gets through to people eventually.

Mark will tell you that it was definitely quicker before he got the belt redone. 175Kw was also with 90 degree intake temps and yet the videos from Mark himself in late 2012 and early 2013 showed what sort of 0-100kph times? Showed a consistent 2 seconds slower.

So Grants/Pudz was pushing 204Kw at 4800rpm and 230's at 4400, now on Grants we know the top end is back, what has it gained...

While we are here, 285Kw on Dlee's H6 on low boost... we even had 330Kw@4800rpm when the EWG vacuum hose melted and it ran 15psi for 20kph of the run

[dr20t]

My bad

Sorry guys I don't know what I'm talking about and obviously don't know enough about how amazing the h6 really must be.

330awkw seems logical and realistic from 15psi on an unopened 3.0 litre on 98.

[kiahatsiu]

A mate's turbo ez30 made 330kW at wheels on 98 back in the day. It was built with pauter rods and a tricky closed deck. It ran close to 19-20psi from 3788.

This car actually existed.

[Swipez]

I really can't get over how this thread has blown up the way it has. Just disclaiming that I have NOT proposed any guaranteed power numbers and nor do I care about a 'number' as a reference point for car performance. I honestly could not care less about a 'number'. I have just started this thread acknowledging the potential that this engine platform has. Not all units are created equal and ALL units wear and tear at different rates and severity. But this platform is CAPABLE of the power figures written. Which is quite an exciting thing once you accept the engineering characteristics behind it. That is the whole reason of why I started this thread. Frankly, a 3.0 litre engine is not a big engine, and the torque/power it can be tuned to achieve is quite remarkable. Also it has been proven to make significant and exciting gains once supercharged.

I have never once tried to lead people into spending money on their h6s and guaranteeing to make huge power. They will make significant gains in their performance on a torque and drive ability stand point. Btw, all of the performance mods I have done to my h6, cost me $1000. Pair it with the E85 tune by Matt and for a very reasonable sum of money, you have a truly 'quick', Conservative, and civilised Street car. You can spend way less than $1000 on your h6, just a reputable tune and it can be very, very nice to drive fast OR slow.... That's the beauty of it.

[Swipez]

My bad

Sorry guys I don't know what I'm talking about and obviously don't know enough about how amazing the h6 really must be.

330awkw seems logical and realistic from 15psi on an unopened 3.0 litre on 98.

Hey bro.... I'll tell you one thing... We're all addicted to corn juice too We've got that in common and to smile about.