Fastest GTR and highest WHP GTR in Canada ?

[Dragon Humper]

Not much chatter on here for a while. Haven't done a damn thing to my car, still runs like a top. Had one of the stock fuel pumps crap out, soon to be fixed. Run it lean a whole bunch of times with 32 deg. of ign. timing. Motor must be built like a brick shithouse.



Jon.

[Terrh]

Not much chatter on here for a while. Haven't done a damn thing to my car, still runs like a top. Had one of the stock fuel pumps crap out, soon to be fixed. Run it lean a whole bunch of times with 32 deg. of ign. timing. Motor must be built like a brick shithouse.



Jon.

I'm jealous.

What's your timing map look like?

I melted #6 and damaged #2 and #3, running lean from stupid fuel pump problems. Car should be back together this week.

Still hasn't been on a dyno or down the dragstrip this summer, but it's a /lot/ faster than a stock C6Z from a roll which made me real happy.

[Dragon Humper]

Pretty much 30 to 34 deg from the basement all the way to 8500 rpm. The lower off boost #s are a touch higher to bring the turbo in a little quicker. I have 30 deg all the way to 1.8 bar. I NEVER run anything less than Chevron 94 with at least a gallon of Tolulene in it if I am going to run the car at anything higher than .9 bar. That's how you make an assload of torque, boost + big ignition timing. My AFRs aren't even that rich, 11.6 to 12 under the blow, my white bumper hardly ever gets black crap all over it.

My intake temps are always nice and low because of the 100mm thick intercooler and I never let the EGTs get much above 700c.


Jon.

[Terrh]

Have you ever messed with your cam timing?

My car was a lag machine (full boost = 5500+RPM) and then with a very minor cam timing change it felt like I doubled the displacement. Lost a bit up high but compared to what I gained it was night and day.

My timing map is FAR more timid than that, at 20PSI I'm only running about 22*.

[Dragon Humper]

Not yet, its still got the factory cam gears on it. I've got some GReedy gears and belt with a new set of pulleys and bolts, just need the time to do it. Big ign.timing makes a huge diff, my GIGANTIC turbo comes in at about 5200 rpm. I am hoping that cam gear adjustments can bring that down to 4800ish. With some pre-spool into it it comes in at about 4500, with cam timing I'm hoping for better.

To bad we don't have a road course worth a damn in BC, I think she would be a track monster on a big track.



Jon.

[Rush_in]

What about Pacific race way in washington? i would love to so your car destroy that track

[Terrh]

Not yet, its still got the factory cam gears on it. I've got some GReedy gears and belt with a new set of pulleys and bolts, just need the time to do it. Big ign.timing makes a huge diff, my GIGANTIC turbo comes in at about 5200 rpm. I am hoping that cam gear adjustments can bring that down to 4800ish. With some pre-spool into it it comes in at about 4500, with cam timing I'm hoping for better.

To bad we don't have a road course worth a damn in BC, I think she would be a track monster on a big track.



Jon.

I'm running twin GT2871's which are a little big for a sub 3L engine but they work OK.

Getting to mild boost (say 15PSI) went from 5500rpm to 3200RPM just by advancing the intake cam 2*.

More than 2000 RPM difference. I wish I had before and after dyno numbers but I bet it gained 200 lbft of torque at 4000rpm. Seriously HUGE, people I've taken for drives don't believe that they're the same turbos - and that was the only change. With my 275 wide RT615's it'll spin all 4 from a roll in 2nd now if the pavement is anything less than perfect. I've also discovered what torque steer feels like. Before it had great topend but none of the midrange.

[Dragon Humper]

Yessir, intake timing plays a huge roll in overall power production. Advancing the intake 2 deg. widens the lobe seperation and advances the overall valve timing 1 deg., both of which will bump up low and mid range VE at the cost of top end, as is plainly obvious in what you ended up with. Little engines respond much more to this than larger displacement mills.

I would love to go 3L but am afraid of breaking........everything else.....lol.



Jon.

[FOOT]

Any update on the fastest skyline GTR in north america?

[NismoS-tune]

north america? Would probably either be something like the DSport R33 or Ark Design R32 GTR, well, that are officially out in public.

[cobrAA]

ark design doesn't do anything for the BNR32, yet they have a machine, its weird no ? or I'm missing their offering?

[Bruizer]

ark design doesn't do anything for the BNR32, yet they have a machine, its weird no ? or I'm missing their offering?

I don't get the relevance... I, like yourself, don't do anything for the bnr32 yet both have machines, what's weird? Or am I missing your point?

[Dragon Humper]

Id like a crack at the Dsport R33, I saw it at SEMA last year and i think i can take it.....him on pump and me on race. His Hollanger is huge advantage but i don't think its making the power they say it is on pump. They didn't even drive it in the cruise after the show.....they just snuck out the back and hide in the transport loading area. Sounded mean though.....




Jon.

[Bruizer]

I don't see why they'd lie but I guess it's the internet and you too could be a liar.

Maybe he has some kind of magical tune (pectel I think). What do you have? Haltech? Vipec? Motec?

How bout race gas vs race gas all in.

You'd be running in the 9s like them? Oh wait, I think they recently punched out an....

[Dragon Humper]

Lie?..........not so blatantly......massage the dyno parameters to put up a good looking # for the magazine and foreign press......maybe.

I have a D-Jetro with a man's tune in it...not that it makes a whole lot of difference. ECU brand means very little if the tuner is timid. I just think the car is only making about 800ish (gross) on pump and with my lighter car and 900ish(gross) on race that should make up for the Hollanger advantage in his car. But...the Dsport vid has him only trapping at 145mph before the valves dropped. The run sounded clean so I really doubt the 1100hp race fuel # because he should have been in the 160mph range.

If the car ever came to Vancouver on some kind of tour, hell yea I would spend some cash to go toe to toe with it on the strip all in. Even if he just barely beat me I would have the justification that you don't need to spend $150,000 to run with the big boys.



Jon.