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LIL has full boost and full revs

Diver944

Diver944

Active member
I'm just back from my post run-in oil change and checkover and am happy to report I now have the go ahead for 18psi boost and full revs (providing the AFRS are within safe limits)

OMG she is not a docile pussycat anymore [:eek:] [8D][8D][8D][8D]

The boost is currently set to 15psi and it's changed the performance entirely. Once I've got used to it and double checked the AFRs are safe, I'll be turning it up to 18psi. I'm still on a manual boost controller and the boost is dropping off to 13psi but that will be addressed when I reinstall my Greddy EBC over Christmas.

I did a quick G-Tech horsepower measurement, which is in no way to be considered accurate and it came back with 297bhp

AT THE WHEELS [8D]

Don't tell anyone but I'm a bit scared of her now

 
Paul
Im sure you are doing,,, BUT PLEASE take care on these slippery roads m8....[;)][;)][;)][;)]
With all that BOOOOOSST....
One wouldnt want to be being pulled out of a hedge , now would one.???????[;)][;)][;)][;)]
 
Hi Paul,

Sounds like she got you home ok... and by the sounds of it quite quickly! lol

How does she feel?? .... tell us more, tell us more!

This is all getting quite exciting.

I must point out though... the MBC is going to loose boost as rpm increases... The standard intake is always going to also cause a choke point which will loose you some boost as a bottle neck again as the rpm increase... and the almost standard (cat/muffler bypassed today) exhaust is also going to increase back pressure and therefore loose you boost as the revs rise.

It also needs pointing out that the car is still just running a Klaus Hoffman 2.5 turbo chip, which is constantly amazing me that it seems to adapt and work even on your 3.2! Once the car has a tailored map, I would not be amazed to see the car picking up a massive amount of power.

Lastly... BHP is tied to RPM... as your loosing boost as the rpm increases, your peak figure will be much lower than it could be.. even if you were maintaining 15 psi.. But once you maintain 18 psi all the way to 6500 rpm, thats a big difference to 13 psi!....

But 297 BHP at the WHEELS is quite shocking really..

When Simon (SPS) had a MBC fitted he was only getting about 15 PSI of boost at 6500 rpm... which caused him to only have about 320 BHP at the flywheel (at the wheels it would have been much less than this).. But he did get about 375lbs of torque at the flywheel.... Likewise, I would hazard a guess that your torque figure will currently be a 6th higher than your BHP figure due to your dropping boost curve, which may mean your currently getting about 350 lbs of torque at the wheels at only 13 psi of boost, without a proper map... god knows what roughly that would be at the flywheel!

Then again the g meter may not be anywhere near accurate.. but even if its only vaguely accurate, its still impressive for this stage of the game.

How did she behave? do you think we have knocked the electrical issue on the head?
 
In fact.. its easy to get carried away with a g-meter guage.. and the figures may look unimpressive to untrained eyes... But it would be interesting if SimonP (SPS) can chime in with his actual BHP and Torque figures and if he has a RWBHP figure for his car if he has one... as it may be interesting as a vague comparison of torque.

In fact.. it may be interesting if anyone has a RWHP and a flywheel figure for their car, so we have a very rough rule of thumb ball park conversion

Not to mention adding fuel to the fire of guestimates and sweepstakes of how much power Pauls car is going to make.
 
Echoing what BigDave said ,Paul take it steady while the roads are so Greasy!![:D] More news as and when please!!
 
On the 'rollers of truth', I recorded 377lbs/ft torque and 317.6 bhp at the flywheel, this corresponded to 268.7 bhp at the rear wheels.
This is from a blueprinted 2.5l engine with a ballbearing hybrid turbo.
It should also be noted I was losing approx. 5psi of boost at the top end as a result of using an MBC, this was later remedied by using an EBC
Hope this helps
Simon
 
Sounds good. Very good. I guess fear of the power of the engine is something I'd quite like to have ... !

Any chance of getting boost a bit quicker than Thursday?


Oli.
 
Where as boost used to take until Thursday to get, as of yesterday, its now back in stock available on demand, all you need to do is press the "order now" button (which is just to the right of the brake button, which is to the right of the clutch button) for instantanious delivery :eek:)

Many appologies to everyone who pressed LIL's "order now button" also known as "the throttle" and recieved the automated response that it would be back in stock on "thursday".
 
ORIGINAL: SimonP

On the 'rollers of truth', I recorded 377lbs/ft torque and 317.6 bhp at the flywheel, this corresponded to 268.7 bhp at the rear wheels.
This is from a blueprinted 2.5l engine with a ballbearing hybrid turbo.
It should also be noted I was losing approx. 5psi of boost at the top end as a result of using an MBC, this was later remedied by using an EBC
Hope this helps
Simon
Click to expand...

As transmission loss is a factor of elements which both increase with the power fed through it due to increasing pressure applied to gears causing increased frictional losses, along with tyre deformation etc, and a constant due to constant losses such as masses and constant friction. its safe to say that Paul's losses will be greater than Simon's.

However, if we were to just imagine the losses Paul is seeing as a constant loss, and we use Simon's loss as an example, then 48.9 BHP would be a good example minimum transmission loss... Which would translate as Paul currently seeing 345.9 BHP at the flywheel which should roughly translate to 403.55 lbs of torque.

Bearing mind that this is on a 2.5 aftermarket chip, which we were even amazed was good enough to get the car running on, let alone running in on and dealing with boost with and that the 3.2 engine will require a completely different ideal ignition map, let alone a tweaked fueling map and is only getting 13 Psi of boost where BHP is a useable figure. Those figures are pretty good!

Having said that.. we are talking a lot of assumptions here and a g-meter which is not exactly a dynodynamics rolling road.

All very promising though

 
The table at http://www.cannell.co.uk/944%20UK%20League.htm can be used to provide all the data that is necessary for comparisons.

944's loose (incredibly consistently - measured across many vehicles) 15% through the transmission.

For my part, I've compared the G-Tech RR extensively against the Weltmeister RR and found it very accurate, as long as you are on a totally flat road and you've weighed the car accurately on a weighbridge.

297 RWHP on the G-Tech (as long as it is set up as above) equates to about 350 BHP flywheel based on many measurements on WUF and backed up by the data in the above table.

HTH

What was the torque shown, Paul ?
 
ORIGINAL: eastendr

What was the torque shown, Paul ?
Click to expand...

I don't know [&:]

I'm a cheapskate and only have a 2nd hand base model G-tech off Ebay for £15 - it doesn't do torque.

This afternoon I have my co-pilot Ben with me to keep an eye on the AFR so I can safely up the boost to 18psi as per Jons instructions. Please pray for me that I do not succumb to Bens influence and turn it up to 30psi.

I think I need to order some new P6000's for the rear :ROFLMAO:
 
Rick, what model G-Tech would you recommend? One may be handy for the workshop road tests.

Paul, Be careful with Ben... He is a bad influence :eek:)

As they used to say on 'Hill Street Blues', "Lets be careful out there guys"
 
P6000,s....I do HOPE you are joking there my good man....[:D][:D]

They MUST be THE worst tyre anybody could fit to a car.....[;)][:D][;)][:D]
 
ORIGINAL: Diver944

ORIGINAL: eastendr

What was the torque shown, Paul ?
Click to expand...
Please pray for me that I do not succumb to Bens influence and turn it up to 30psi.
Click to expand...

I'd be more worried by the 8,500 rev limiter [:D] [:D] [:D]

Paul, are you coming to Reading tomorrow ?

Jon, I'd recommend the G-Tech RR. It seems very accurate and repeatable IF you have a level road and accurate weight of the car as tested ...

Have a look on their website and download the software. I can send you some old data files to play with ...

 
It all sounds pretty exciting! if the bhp figure so far is anywhere near accurate I can't imagine what the possibilities are once you dump the AFM and install a MAF or MAP and get it properly set up. I bet the en gine feels like it's trying to run a marathon whilst breathing through the eye of a needle! Where is the boost coming in? I guess the headline bhp figure is misleading as I imagine the torque is available right from tick-over and the boost comes in nice and progressivly. I look forward to hearing more and more and seeing you on the rollers of truth.
 
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