706 replies to this topic

[ultimate]

Yes. Harrop on 70mm Pulley and Full 3" tullet sYstem with big HJS 200cpsi cat. Car had 350bhp on rolling road when revved to 6800. At this day I had the n/a backbox on, until 6800 I have seen NO more boost than with the tullet backbox. I revved to 7700 with the tullet. Never been on a dyno in that configure, but the car did 11.1 at bitburg quartermile and 7.5 seconds 100-200. So i think power with that high rpm might have been at 380-390 bhp

[ultimate]

Engine uses much oil now but less than martins. Will come out in December and be stripped to see what happend... ... And rebuilt a 2.3 Gen3 ;-)

[fezzasus]

Do the power runs capture throttle voltage?

 

It's very strange for performance to get worse, however if a component between the ECU, throttle pedal and throttle valve is gradually failing, this would explain why the engine is unable to reach that level of power.

[CHILL Gone DUTCH]

The power runs don't capture the voltage put you can replicate it in a log It's not just down to the power runs its happening all the time

[CHILL Gone DUTCH]

 

 

But the car makes a lot more power when the air temp cold

  That points at an inlet restriction rather than exhaust. Exhaust temps (and therefore pressures) won't change much with ambient air temperature

The pressures don't change much I don't know about exhaust temps What I do know is the car make a lot more power in cold damp air temps That's fact If that points to a inlet restriction then that must be the case  

  Yes, the SC's love a cold damp day; free waterinjection.   If I remember correctly, Ultimate ran about 265KPa boostpressure with his pulley and exhaust system... That's a lot! (And your 215KPa doesn't count, as you have 10% more engine volume to fill. )  

Wow that's a lot of boost Better not mention how much power my tiny 215kpa can make in the right climatic 🐎conditions

[smiley]

 

Wow that's a lot of boost Better not mention how much power my tiny 215kpa can make in the right climatic 🐎conditions

 

 

No need to be shy about good results chillmeister.

[stu8v]

Is that gauge pressure?

[ultimate]

Tell us. How much power in which config? And measured by obd or Rolling Road?

[Exmantaa]

Is that gauge pressure?

No, that is absolute MAP pressure, so minus 100KPa for boost. It's quite easy to make a lot of power with smaller Harrop pulley, but the temps go through the roof. (Ultimate has water/meth injection fitted)

[The Batman]

I'm glad this thread is back to will waving

[smiley]

We need the power to keep up with that compound charged Honda you´re building.

[techieboy]

I'm glad this thread is back to will waving

 

Yeah, I'm sure Martin and his 170bhp is over the moon too.

[The Batman]

We need the power to keep up with that compound charged Honda you´re building.

No chance NA ftw!! Been hanging out with Vocky too much

[The Batman]

Chill got 382bhp the other day when it was cold

[CHILL Gone DUTCH]

Chill got 382bhp the other day when it was cold

Yes I did indeed get a single run at that figure the return leg was less Using obd tuner

[smiley]

With a 3.1" pully though. And that's nice.

 

[CHILL Gone DUTCH]

Yep 3.1

[The Batman]

Yep 3.1" fully hard

[smiley]

[CHILL Gone DUTCH]

lol