[Irishace]

Congrats again Dzenno, fantastic results for you! Looking forward to your testing results tomorrow on the fuel pump.

[themyst]

Originally Posted by FastGator

info get cloudy with time?
http://www.n54tech.com/forums/showpo...4&postcount=47

ok 21 psi, sue me

[ultimateracing335]

Originally Posted by Andy1991

dzenno: I am wondering which shop in Toronto is able to install your RB turbos.?

champion motors!!!!!

[BrianMN]

So who's cars were all dyno'd and tested today?

Ultimateracing335- did you also do some tuning today or get fun data or info? What tune are you running?

[luca335i]

Fantastic numbers dzenno. Did you dyno on winters? Was 450 on pump and meth?

[dzenno]

Originally Posted by luca335i

Fantastic numbers dzenno. Did you dyno on winters? Was 450 on pump and meth?

summer tires..450 was on pump gas NO meth just kissing 16psi, ,15.6-15.8 most of the pull

[mithiral67]

How would winter tires effect the results, traction?

[dzenno]

Here's the 496whp dyno...again this was was 19psi on race gas + 75/25 meth with a single M10...Shiv has the datalogs for every single run so I'll let him post it..notice on this run we introduced a tiny bit of boost taper up top...on the pump gas 450whp dyno run we ran zero boost taper all the way to 7k

[Ulrich]

Originally Posted by dzenno

Here's the 496whp dyno...again this was was 19psi on race gas 75/25 meth with a single M10...Shiv has the datalogs for every single run so I'll let him post it..notice on this run we introduced a tiny bit of boost taper up top...on the pump gas 450whp dyno run we ran zero boost taper all the way to 7k

Holy Shit, thats SICK!!!
I wonder what would be your 0-200 or 0-300 km/h times...

CONGRATS MAN!

[themyst]

Originally Posted by dzenno

Here's the 496whp dyno...again this was was 19psi on race gas + 75/25 meth with a single M10...Shiv has the datalogs for every single run so I'll let him post it..notice on this run we introduced a tiny bit of boost taper up top...on the pump gas 450whp dyno run we ran zero boost taper all the way to 7k

Is it possible to get more fuel in the midrange? Looks good otherwise.

[Andy1991]

Originally Posted by Ulrich

Holy Shit, thats SICK!!!
I wonder what would be your 0-200 or 0-300 km/h times...

CONGRATS MAN!

I assume it can go neck to neck with 997 Turbo PDK.

[dzenno]

496whp run datalog

[farbmw]

Originally Posted by mithiral67

How would winter tires effect the results, traction?

To be honest I don't know, I ran a Dyno Day last year and the turn out was great!

But the numbers we was getting was low, so some members say it was because we all still had winters on and others said the dyno was off.

I was also told that the size of the rims and tires would make a difference on the dyno too.

So your guess is as good as mine.

[Jeff@TopGearSolutions]

Originally Posted by FastGator

info get cloudy with time?
http://www.n54tech.com/forums/showpo...4&postcount=47

LOL bickering over 1 PSI..... You guys are funny.

I doubt the accuracy after 20 PSI regardless, let alone the fact that a human can blow 1 psi through a straw if they so inclined, big deal.

[ultimateracing335]

Originally Posted by BrianMN

So who's cars were all dyno'd and tested today?

Ultimateracing335- did you also do some tuning today or get fun data or info? What tune are you running?

I made 486whp recently with RB's and jb4 on pump and meth. Today I made 476 with pump and meth but I was on snow tires. I think with some tweaking ive got more to go.

[ultimateracing335]

WWe also found out our lpfp cannot give steady fuel to the hpfp!!!!

[maui86]

Originally Posted by themyst

I wonder how lostmarine pushed 22 psi

if my memory serves me right, he was on race gas and TWO m10 nozzles. he was still leaning out.

460hp at 6800rpm is no joke!

[itsbrokeagain]

I think BSH should be a good choice, considering Shiv bought one from mod bargains last month

I'm in the process of trying to order 4 myself.

But good numbers 496 consistent HP is nothing to laugh about.

What I do notice with the fuel pressure drop outs is that it behaves exactly like a diesel. The lift pump (aka lpfp) supplies the hpfp. Under high demands you can actually pull the lpfp ( pressure gauge reads 0) because the engine is so thirsty and needs so much fuel....diesels only use 10-30 psi on the low end, but the idea is the same. Now if you can figure out the restriction, bye bye fuel barrier

Who knows, maybe even just the fuel line size needs to be upgraded to let the lpfp do it's job. That needle should barely move if at all..that much wavering means fuel flow is severely lacking.

[jannisa]

So what AFR readings should we normally get under low/middle/heavy loads?
My in-dash gauge monitors 15 while cruising and 11,5-12 on wot at high revs.
What do you think?

[Irishace]

Nice work on the lpfp John.

[Transport3r]

Could this be the root problem of our HPFP woes? The LPFP not keeping steady pressure?

[OpenFlash]

Originally Posted by jannisa

So what AFR readings should we normally get under low/middle/heavy loads?
My in-dash gauge monitors 15 while cruising and 11,5-12 on wot at high revs.
What do you think?

That's normal and expected. The dash gauge will sometimes read a bit richer than a tailpipe sniffing wideband. Especially one that has some heavy running on cars that run leaded races fuels.