NitroDann's Long Awaited Garage Thread

Postby **NitroDann** » Mon Feb 18, 2013 9:51 pm

Was flat out running around for bits and building the white car.

Should have visited me.

Dann

xatz · Postby **xatz** » Mon Feb 18, 2013 9:57 pm

Looks like it's World Time Attack time!! Am'i'right?

I volunteer to be part of your pit crew!!

Postby **Okibi** » Tue Feb 19, 2013 12:50 am

It's going to be interesting to see how big that radiator opening will end up being to keep things cool and how much you chop off the splitter. Thanks for sharing. :beer:

Lokiel · Postby **Lokiel** » Tue Feb 19, 2013 10:04 am

Okibi wrote:It's going to be interesting to see how big that radiator opening will end up being to keep things cool and how much you chop off the splitter. Thanks for sharing.

With decent ducting, you don't need a large opening, just look at 949 Racing's "Crusher":

- interestingly, he's not using a splitter - Dann's version should be more solid with it.

Postby **NitroDann** » Tue Feb 19, 2013 10:28 am

Pats car may or may not make well over double the power that crusher makes.

:lol:

Dann

Lokiel · Postby **Lokiel** » Tue Feb 19, 2013 10:53 am

I forgot that Crusher is N/A, but even so I suspect that you wont need to open it too drastically.

Postby **NitroDann** » Tue Feb 19, 2013 11:00 am

It wont be bigger than stock (obviously cos stock is the biggest you can go before flow doesnt improve).

I imagine it will end up 50% bigger than now. The stock hole is double the size of the current hole, it was fine at sensible road speeds, at the track it will be worked harder but be getting more airflow cos its going faster so who knows, we will find out.

It has a fully sealed bonnet now all the way around, headlights dont let air in, and 3 vents in the boinnet not the one it used to have. I want the coolant temps under 90c.

Dann

Postby **NitroDann** » Thu Feb 21, 2013 12:31 pm

Repping mad tyte stance yo.

Ready for the dyno, pat tells me next friday. Boost response is amazing, can just snap the throttle open and be spinning 3rd on 17x8's by the time your foot hits the floor. Super happy.

Dann

Postby **NitroDann** » Thu Feb 21, 2013 12:38 pm

Also, pat owns a supercharged na8 with 130rwkw.

He always talks about how he loves that with the blower you can just open the throttle and instantly overtake on the highway etc. I aksed him to compare, he says its so hard to say which car has the fastest boost response because both are as fast as your ankle can move and the turbo car delivers just SO much torque.

We discussed it a bit and basically its so responsive that you would never know the difference except that the blower car is balls slow in comparison (and turbo set to just 10psi).

Dann

Dweezle · Postby **Dweezle** » Thu Feb 21, 2013 12:46 pm

Yeah, ill take one!!!

Sent from my GT-I9100T using Tapatalk 2

gslender · Postby **gslender** » Fri Feb 22, 2013 8:43 am

NitroDann wrote:We discussed it a bit and basically its so responsive that you would never know the difference except that the blower car is balls slow in comparison (and turbo set to just 10psi).

Have you been able to identify what aspect makes the blower car balls slow.. assuming the SC is also able to match the 10psi boost and all things being equal, I wonder what makes it slow (again assuming the extra heat in the SC is adjusted for and intake is sufficiently cooled etc).

Is the boost dropping off in SC? I would expect a MAP/Boost graph to show the turbo coming on and staying high all the way, whereas the SC starts strong and then drops off... is that why? I wonder if the SC engine is tuned to maximise the SC early and strong boost?

G

Postby **NitroDann** » Fri Feb 22, 2013 9:50 am

Well there is a bunch of reasons.

Blower is far less efficient, heating the boost charge more due to internal friction, so a psi or 2 is just heat.

That heat means less aggressive timing.

Then it takes 20 or 30 hp back from the engine to drive itself.

This turbo setup can make 10psi full time, at any rpm you want as fast as you want it, and being a turbo its so efficient.

It makes 10psi to the throttle body, at room temperature every single rpm from cruise to the limiter. Not slowly tapering the flow up with rpm, and not dying off at the top.

Dann

charlie_91 · Postby **charlie_91** » Fri Feb 22, 2013 9:54 am

tbh that wing mount looks shocking ha.

Postby **NitroDann** » Fri Feb 22, 2013 9:58 am

Its temporary to test with, the splitter is a 1st gen also. Its up to the owner to change the wing mounts if he wants, but its actually very very strong.

Even the turbo setup is for toying with, as I said before Its getting a 450HP borg warner on it later, and will be tuned for around 400whp.

Dann