Jump to content
SAU Community

Recommended Posts

post-49273-0-53484800-1436053985_thumb.jpg

3.4 stroker I believe, but that won't affect peak power much

It was only a ~6500 rpm run apparently as the dyno wouldn't run past 230kmh for some reason.

Unsure of rear housing, but assume it's a bigger one....

3.5" exhaust, with gate plumbed in, so, far more potential to be had yet.

Also, I ran my car and it was fairly consistent with how it was tuned on another dyno.

  • Like 1

That's impressive, not just peak power but down low as well.

I wanted to know the capacity as I'm planning to run 30psi (2.7) and hoping to get 850hp from the 6870

But it seems likely I won't get there.

Why only 30psi? What fuel? If e85 why are you limiting yourself?

Yes it will be on e85, I'm after a safety factor as this is a brand new engine and its street driving.

I know I can make 1000hp but where do u draw the line?

I'm drawing the line at a safe 30psi Street driven all day long, then pushing it to its limits just for a numbers game!

At power cruise events it will be pushed upto 950hp with gas. Also my engine hasn't been sleeved and has stock girdles, so that's mostly why I'm holding back.

Edited by QUP29

Yes it will be on e85, I'm after a safety factor as this is a brand new engine and its street driving.

I know I can make 1000hp but where do u draw the line?

I'm drawing the line at a safe 30psi Street driven all day long, then pushing it to its limits just for a numbers game!

At power cruise events it will be pushed upto 950hp with gas. Also my engine hasn't been sleeved and has stock girdles, so that's mostly why I'm holding back.

Thats a 20odd psi safety margin.

1000hp on stock girdle and no sleeves isn't an issue.

Especially as its only going to be pushed sometimes.

Me and my tuner know it can make whatever we want it to make, the motor is good for 1200hp but I'm not about pushing it to its limits.

His seen N1 blocks crack at 600-700hp.

It's a street car, and I want it to last as long as I can as this engine isn't just a normal off the shelf stroker kit!

Edited by QUP29

Me and my tuner know it can make whatever we want it to make, the motor is good for 1200hp but I'm not about pushing it to its limits.

His seen N1 blocks crack at 600-700hp.

It's a street car, and I want it to last as long as I can as this engine isn't just a normal off the shelf stroker kit!

I've seen brand new cars off the showroom floor break as well.

Got a thread on what makes the 2.7 different from a readily available off the shelf 2.7?

I've seen brand new cars off the showroom floor break as well.

Got a thread on what makes the 2.7 different from a readily available off the shelf 2.7?

no I don't have a thread if that's what your asking? I have different components from just your normal off the shelf nitto 2.7 kit.

But enough about me this is a precision turbo thread, sorry for getting off the topic.

no I don't have a thread if that's what your asking? I have different components from just your normal off the shelf nitto 2.7 kit.

But enough about me this is a precision turbo thread, sorry for getting off the topic.

Back on Topic, a 6466 would/should/will go very close to your 850hp number on 30psi.

A high comp 2.6 down here makes 608kw on 26-28psi he runs 35 on the track.

Yeah i have mentioned a have a sweet spot for the 6466, we originally had the 7175 but I chose to change to 6870 for a better spool.

6466 won't give me 950hp maybe on kill mode!

6870 gives me more room if I do change my mind and want to push the envelope

Thanks for the info

Edited by QUP29

Yeah i have mentioned a have a sweet spot for the 6466, we originally had the 7175 but I chose to change to 6870 for a better spool.

6466 won't give me 950hp maybe on kill mode!

6870 gives me more room if I do change my mind and want to push the envelope

Thanks for the info

Will be interesting to see what it puts out at 30psi. Take into account that graph has a very restrictive exhaust setup so probably not much above 30-32psi with something free flowing? I'm only guessing

Started working on the car again.

Ended up going a 6466 with T4 divided 0.84 rear on a Rex Kelway twin scroll manifold, twin tial 38mm gates with Plazmaman plenum & throttle body. Will be on a SR22VET circuit car. Hopefully will be ready in a few months time so will see how it goes.

20150620_161213_zps7lwedxk0.jpg

20150704_151218_zpsnuua1axk.jpg

Me and my tuner know it can make whatever we want it to make, the motor is good for 1200hp but I'm not about pushing it to its limits.

His seen N1 blocks crack at 600-700hp.

It's a street car, and I want it to last as long as I can as this engine isn't just a normal off the shelf stroker kit!

This is one of the big questions I was looking for initially as well. I have a new N1 block on stock bores and a BC stroker (makes it 2.75L)...I decided NOT to grout my block because I too am limiting myself with turbo size (BW 8374 EFR)...where should I stop? I was assuming I could max this turbo out on my setup if I wanted to and the block would be fine. Again street car with some lapping days in it's future so I was erring on the low end / reliable side of things.

I made just shy of 500kw at 6300 rim with a 6466 while still tuning top end. That block died a painful death, along with my wallet. The 6466 at 35+ pound should see 600+ on a well built stroker with a good head. I love good head.

I made just shy of 500kw at 6300 rim with a 6466 while still tuning top end. That block died a painful death, along with my wallet. The 6466 at 35+ pound should see 600+ on a well built stroker with a good head. I love good head.

The 6466 see's over 600kw under 30psi on 2.6 and strokers.

A stroker means less rpm more than anything

As for blocks need grout etc. Many cars over 1000hp don't and haven't

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Have a vb in honour of the car comming back
    • It was a great, but typical track day, and some VB was ingested at the night time debrief 🤪
    • And so, to round this out, I couldn't be happier to confirm @MBS206 has decided to buy the car. He drove down from sunny QLD with a trailer last week and it is off to its new home today. I'll let Matt confirm on next steps but I understand broadly that the plan is to leave it pretty much as is, and just get some quality wheel time with a nicely balanced car that is pretty much track ready. There are a few a jobs still to be done first but nothing too major and I think its a very smart buy Dinner last night at the Paragon with a round of VBs (mostly) for Neil
    • Well, 50 pages and the end of a chapter for this car. We took it out for a shakedown at Wakie yesterday, and everything went well. There were a couple of niggles: - Oil cooler fitting leak - tightened, cleaned, stopped leaking - Radiator cap overflow fitting was leaking....Mark called it, the overflow fitting was threaded in and not tight....tightened, tested and held pressure - Small oil leak at the rear of the block, probably the turbo oil feed - too hot to get at it comfortably but probably just needs to be nipped up - leak at the driver's side rear brake line where it meets the hardline. Fitting wasn't loose, so Matt backed it off and back on, no further leaks - there's also a leak somewhere on the top of the fuel tank, maybe that cross over fuel line - that was has been left to fix when its on a hoist Otherwise than those niggles the car went great, turned great and stopped great so it was a very successful day out. I'm always really nervous when a car first hits the track after a long break, especially with a brand new engine as well but it was great. VID-20251011-WA0007.mp4  Big thanks to @The Bogan who dropped by and helped out, @MBS206 and my nephew Lachlan the apprentice.  Neil's wife Mel also surprised the hell out of all of us by dropping by; she's up in Tamworth these days but was travelling to Melbourne so had plausible deniability for turning up at the garage, it was great to see her but also obviously a bit sad all round.
    • Skyline R33 Series 2 sedan tail lights in excellent condition. These are becoming harder to find, especially in this state.    BOTH SETS ARE IN FANTASTIC CONDITION (REFER TO PHOTOS)    ✅ No broken covers or cracks ✅ Lenses are in flawless condition ✅ All rear mounting lugs intact ✅ Comes complete as pictured ✅ Perfect for restoration, replacement, or upgrade   These lights are ready to go, no surprises just quality OEM parts.   These are definitely one of the better sets we have seen in a while. With minimal wear and tear they will come as you see. Bear in mind they are not brand new they are almost 30 years old now. To find them in this condition isn’t easy they can only be obtained on the second hand market.   Australia Wide Postage Available At Buyers Expense. Silver Set:$850 Grey Set:$850 PM Me for purchase or any other questions  IMG_2166.dng IMG_2165.dng IMG_2172.dng IMG_2173.dng IMG_2174.dng IMG_2179.dng IMG_2180.dng IMG_2260.dng IMG_2258.dng IMG_2259.dng IMG_2261.dng IMG_2266.dng IMG_2273.dng IMG_2274.dng IMG_2276.dng
×
×
  • Create New...