Tom Tucker

Here is the direct comparison between GT3582R and G35-900, both e85, both 20psi There is a fair difference in response, which is probably a combination of the turbo and manifold. I didn't think there would be such a difference, but similarly, I didn't expect it to make so much more power. There is definitely response to be gained with a built motor, but I think this is useful data because the dyno figures are irrelevant, the curves tell the story. Driving it home, my first impressions are that it sounds awesome, it really whistles. It's been a while since I've driven it, but it doesn't feel especially laggy, although I need more time to properly assess. A couple of punches in 2nd and third resulted in no wheelspin, which is either because it's coming on a little later, or the clutch is starting to slip. The NT05s are good, but not that good...

Yeah, its deliberately ramped on slowly. Build motor I'd like to be able to run 30psi, but whether my budget can stretch to fire rings etc we shall see

I actually had an FGX XR8 previously. Prefer the turbo, but that's just me 🤷‍♂️

Hopefully there's some usable data for others. Should clarify too. Response AND power are required haha

Its a fair question. I think for most people probably not, but this is just an interim step for me. I wanted to get the turbo setup and everything working together on the stock motor before building it. I guess most people would do it the other way around. But now I know the setup is capable of 600kw easily, I can build the motor to handle that all day, noting I'm way more interested in response and midrange. That 500+kw was never a goal, just part of the test and evaluation process of an ongoing build that seeks to optimise everything that I can, within reason

Thanks mate. I'll get some more detailed pics for you when I pick it up tomorrow. Apparently it was difficult to plumb the external gate, because its a 2.5" pipe. Bulk flow! There's one pic in my build thread now for anyone else that's interested.

Thanks!!

Yes, unfortunately. Usual valve springs, oil pump gears etc. I probably should have elaborated, but I did that in the turbo thread. Basically, nobody expected the setup to make that power. Everybody assumed the G35 would need more boost. So it's been turned down significantly to around 440kw, which is still a stretch for the npc single plate... Anyway, I think I've mentioned elsewhere, but the turbo setup is as follows: - G35-900 1.01 Vband rear - 6 boost manifold, hpc coated - 60mm gen V external gate, plumbed back in - 4" dump, 3.5" over the rear cradle

Cheers! Technically I guess the thread needs to be moved...

Dyno sheet attached. This was the initial run on e85 and 98 respectively, it's since been turned down to about 440kw I think. Nobody was expecting it to make this on such relatively low boost. I'm waiting on the direct comparison graph between GT3582R and the G35-900, apparently they used the rolling dyno for the last round of tuning, and they used the hub dyno this time, so they're hopefully going to throw it on the rolling dyno this afternoon for direct comparisons sake. Will see how it goes. I think there is a lot more response to be had, but the tuner was very careful, noting the stock bottom end. I haven't driven it yet, so I can't comment on transient response, but it looks like it's lost about 500rpm of spool all up.

Sorry to hear man. It sounds like you've been hosed. Seems a common issue with these big high profile tuners. Most don't want to know you if you're new to them, and most don't care about even $20k worth of work on an old falcon when they routinely have people dropping $100k+ on builds with more expensive platforms. Hope you can sort it quickly and painlessly

I had massive issues with PR. But I don't want to derail this thread. The results I'll have will be back to back GT3582R vs G35-900 on the same dyno, same tuner, same everything except turbo setup.

Yep

East Coast Customs, Brisbane north side

Yeah, I'm pretty impressed, although my repco axles, standard rods and npc single plate probably aren't. I have no idea how that clutch managed to hold that power. Need a built motor. Twitching for full send. But will have to wait until next year. I theorise that the 6boost manifold is making a big difference, noting the old GT3582 made 360kw on 98 at 18psi. I also suspect the big 60mm external gate is increasing VE. And e85 is just doing its usual sorcery. Unfortunately you guys will probably only see a 98 tune on 16psi and an e85 tune on 18psi. Hopefully it'll provide some useful data though! Pics of the setup will be a week or so off, getting some final powder coating done. But imagine high mount, all vbands and plazmaclamps

Tuners first words were "I know you didn't want peak power but this is what it did without even trying..."

Hot off the press. On 18lb 98 its making 450 odd kw. On 20lb e85, its making 530 odd kw. Told the tuner to turn it down... he said he can easily get more. Turbo is a beast. I'll have a dyno sheet comparison with the old GT3582 in the next couple of days. I think response has suffered, in order to keep the stock engine together...

Sorry gents, the wait continues. Should have it going in two weeks. Had a delay with a few annoying parts (plazmaclamps) and ceramic coating

How do the xyz brakes go? I was told to give them a wide berth?

You're right. Should get my car in a week or so! Fab has taken a while. Ceramic coating, delay on plazmaclamps etc...

Just bleed the brakes mate. What do you have to lose, except for 2L of brake fluid?

Awesome footage. Do you run an oil cooler at all?

Good to know. I use the repco ones too