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+--- Thread: Guess the BHP - Non 306 Content *Results Are In* (/showthread.php?tid=30886)
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RE: Guess the BHP - Non 306 Content - PartyJas - 17-06-2015
(17-06-2015, 10:57 AM)r3k1355 Wrote: Doesn't the smaller pulley drive the charger faster??
(oh wait, just saw it was the crank pulley not the supercharger pulley)
Yeah its a stock pulley on the charger and larger ones aren't available. Luckily when the original pulley was designed there was a CAD drawing made for it so just needed to modify that and fire it over to the machine shop.
[attachment=23856][attachment=23857]
Gratuitous engine bay pics.!
RE: Guess the BHP - Non 306 Content - allanallen - 17-06-2015
(17-06-2015, 09:33 AM)r3k1355 Wrote: Ha ha thats awesome.
Heat is a common problem with superchargers, they run fine at the set speed they were designed for - but push them a couple of PSI over that and they'll piss out nothing but super-heated air
They start producing heat at higher boost levels, not necessarily higher rpm.
RE: Guess the BHP - Non 306 Content - Paul_13 - 18-06-2015
Am I missing something here or are you not running an intercooler?
RE: Guess the BHP - Non 306 Content - Piggy - 18-06-2015
(18-06-2015, 06:16 AM)Paul_13 Wrote: Am I missing something here or are you not running an intercooler?
nah, I was thinking the same, direct intake isnt it
Intake temps must be pretty high at that sort of psi.
but I am no expert to superchargers/perv tuning.
Re: RE: Guess the BHP - Non 306 Content - Seb_Ryan - 18-06-2015
(18-06-2015, 06:53 AM)Piggy Wrote:(18-06-2015, 06:16 AM)Paul_13 Wrote: Am I missing something here or are you not running an intercooler?
nah, I was thinking the same, direct intake isnt it
Intake temps must be pretty high at that sort of psi.
but I am no expert to superchargers/perv tuning.
Im pretty sure he said on the 1st page its running charge cooler
RE: Guess the BHP - Non 306 Content - Piggy - 18-06-2015
(18-06-2015, 07:13 AM)Seb_Ryan Wrote:(18-06-2015, 06:53 AM)Piggy Wrote:(18-06-2015, 06:16 AM)Paul_13 Wrote: Am I missing something here or are you not running an intercooler?
nah, I was thinking the same, direct intake isnt it
Intake temps must be pretty high at that sort of psi.
but I am no expert to superchargers/perv tuning.
Im pretty sure he said on the 1st page its running charge cooler
I wondered that, but it must be one NEAT package tbh, excellent work if it is in there
RE: Guess the BHP - Non 306 Content - PartyJas - 18-06-2015
Yep.. Jaguar XJ-R charge cooler mated to chopped down C20XE manifold. It's all very neat and at first glance you probably wouldn't even notice the supercharger as it sits under the inlet / charge cooler assembly.
[attachment=23877][attachment=23878]
RE: Guess the BHP - Non 306 Content *Results Are In* - PartyJas - 04-07-2015
Finally got on the rollers for a full run yesterday.
Made 296 BHP at 7000 Rpm (Corrected flywheel figure) & 235 lb / ft torque.
Very flat torque curve. Making 200 lb / ft of torque by 2700 Rpm and still pulling over 200 lb / ft at 7000 Rpm.
Very happy with that.
RE: Guess the BHP - Non 306 Content *Results Are In* - Paul_13 - 04-07-2015
Nice!
RE: Guess the BHP - Non 306 Content *Results Are In* - Chris HDI - 04-07-2015
That is absolutely sweet mate!
RE: Guess the BHP - Non 306 Content *Results Are In* - zx_volcane - 04-07-2015
(04-07-2015, 07:50 AM)PartyJas Wrote: Finally got on the rollers for a full run yesterday.
Made 296 BHP at 7000 Rpm (Corrected flywheel figure) & 235 lb / ft torque.
Very flat torque curve. Making 200 lb / ft of torque by 2700 Rpm and still pulling over 200 lb / ft at 7000 Rpm.
Very happy with that.
That is mega, must be a hoot to drive with that kind of torque curve
RE: Guess the BHP - Non 306 Content *Results Are In* - Poodle - 04-07-2015
That's awesome! Video still required.
RE: Guess the BHP - Non 306 Content *Results Are In* - toseland - 05-07-2015
nice figures.. looks epic fun tbh..
i dont see what the point of "corrected flywheel figures" that the british are bloody well obsessed with, it is almost completely impossible to work this out from wheel HP even with the best of intentions.. as unless you have taken the box off, had it built and tested there is no way to tell exactly what the losses through the transmission, between rollers and tyre are,, etc etc..
RE: Guess the BHP - Non 306 Content *Results Are In* - PartyJas - 06-07-2015
I agree toseland and i would prefer to see a wheel bhp figure. Its that torque curve I'm interested though in and the main reason I went supercharged rather than turbo. This is a pretty 'safe' state of tune too. Running a max of 10psi boost and a standard charger body and the limiter was set to 7000rpm. It will keep me entertained for now but may look at porting the charger next year.
No video I'm afraid guys. The appointment at Northampton motorsport rolling road got brought forward last minute so it was a bit of a rush to get the car there and the camera / phone got forgotten. I'm picking the car up Friday hopefully so will get some vids up of me 'breaking it in' next week.