I am working on a a big turbo build for my 07 de revup and wanted to get some feedback on what the community is running for fuel support on similar builds. To start, the build will consist of a Garrett G35900 turbo standard rotation, TRE TR1245-28 1200hp intercooler, Turbosmart GenV Ultragate 38hp wastegate, Brian Crower ProH2K rods and Manley heads. If memory serves correct I believe at 14psi I should be running around 675 at crank on pump gas. I am looking to get some suggestions on injector and fuel pump sizes good for 700hp as well as get some opinions on preferred fuel management systems. I appreciate any advice.
Cheers!

 

Can’t go wrong with id 1050’s.

 

When you say "pump gas" you're talking about E85 or 93 octane?

You're probably going to need the CJ Motorsports twin Walbro 255 kit for fuel with gas, definitely will want something like that for ethanol. You could run a single pump like a Walbro 485 on 93 octane though. Regardless you're going to want the CJ Motorsports return system.

Just using a quicky injector calculator I'm showing 885 cc/min injectors at 80% for gas, E85 would probably be 1200 cc/min so those id1050 might or might not be a good fit, personally I wouldn't be running 93 octane for those power levels on these engines, I'd try to cap at about 550whp but I also don't have a lot of experience with higher WHP DE engines above that power level.

I'm pretty sure UpRev would be fine for the tune, maybe @seymore4 can chime in with a little insight. People have used it for way higher HP builds in the past and you'll be able to retain a lot of the stock stuff on the car rather than going with a standalone option.

Something else about that build though, you're really getting into those sort of numbers (700) where the rev-up engine requires quite a bit of extra stuff to make it work right, you should think about HR swapping if you do plan on going any higher than about 600whp. If you KNOW FOR SURE that you're not going to want more than 600whp then the rev up will be fine. It's more of a longevity thing, sure you can blast 1000whp out of a rev-up but it's not going to do that for long. Depends on whether you're wanting a 20k mile engine or a 50k mile engine, also depends on how regularly you're going to be thrashing this thing. And how safe you want to play it vs pushing the boost to hit some numbers on the dyno.

Are you planning on running the stock oil pump and cams or are you upgrading and going for higher rpm? If you're going for higher rpm then you definitely need to have a serious conversation with yourself about HR swapping.

 

Oh boy. Yes uprev is sufficient for tuning but I would get in contact with whoever you're going to have tune it and have some very serious conversations first. These kind of power levels on a DE are no joke

 

Thanks for all the Feedback! To both your responses let me help to clarify my build plan. So first, I am referring to 93 octane as my primary fuel choice. I don't plan to run on E85 at the moment as I don't know of a lot of E85 options close by although I will most likely have the twin pump installed regardless in the event I want to run a E85 map down the road. As for injectors, I was initially recommended 1300cc for build, though I want to be sure I in fact need that large. Since the heads are coming out I will probably go ahead and install JWT C8 cams. I will also be upgrading the oil pump, gear ring and and oil catch can to prevent blow by. I am designing this this build as a for the weekend pull or two on a clear road or night riding. I don't plan to beat the bag out it. To be honest, I doubt I'll redline it much as I in all likelihood will be too afraid to lay it down. Longevity wise, I'll plan to be rather conservative with it, but who knows. I would be run less boost, but it is my understanding that the necessary boost required for proper operating for this turbo is 14psi. I'll have to confirm with the manufacture. With regards to tune, I have some good options available not too far from me. I agree I am going to need to discuss it prior to build for sure.

Finally, to the point on a engine swap, yes I have considered an HR swap many times. I have also looked into RB26, 2JZ and LS swaps. I have given this a lot of thought as of what want to achieve and at the end of the day I really want to make this build happen.
I have seen enough solid big single turbo DE builds out there to know its attainable. I doubt I will be the first person to successfully run a Garrett G35 900 on a Infiniti G35 DE block, but I am 100% committed as this point.

 

Ok, the biggest reason I'm trying to convince you to HR swap is you're getting a stronger and CHEAPER engine at the end of the day.

$500 for the upgraded DE oil pump
$1000 for the JWT cams

The HR doesn't need either of those, stock oil pump and cams are all anyone runs on them, no need to upgrade.

Plus you could sell a healthy running rev-up engine for like $3000 since they're so GD expensive.

You can probably find a wrecked 350Z HR for $3500 which will have literally everything you need, trans, wiring harness, ECM, power steering lines, etc. Just get the internal CSC delete kit which is like $500 then part out the remains of the 350Z and you'll be + $$$ with an engine that revs higher, has cheaper components, is significantly stronger, and has a much better chance of lasting longer.

Run the stock HR engine at 450whp while you pick up a second HR for $1000 and do the monster rebuild on it would be my advice, it's a lot easier to solve problems when you're not dealing with high hp variables. You're going to need extra parts including major engine parts once you start getting up to the 750whp level and having a donor engine laying around will save a lot of headache in the long run. Not to mention that EVERYTHING else on the car needs to be upgraded by that point.

The DE is a solid motor <600whp though, but if you want more it's a very expensive endeavor in replacing broken parts. Besides imo anything over about 550whp is just wasted HP in most cars since it's hard to put all that power to the road without spinning. And you can get by with just basic extras like radiator, oil cooler, brake pads, some kind of adjustable shocks, LSD. Over 600 you're going to need some really top tier stuff to be able to put that power to the road and have it stick, plus when it does stick things usually break so axles, driveshaft, transmission 3rd gear, etc all need to be upgraded.

If you are confident you're sticking with the rev-up I think you should lower your goal to the sub-600 whp range though.

That turbo would probably be fine at 550-600whp, it's a 62mm right? That's a little big on the turbo if you're only aiming at 550, the GTX35 58mm is basically the go-to for around the 550-600 mark.

Make a build thread when you do get into it though, always fun to follow the adventure.

 

Correct, the Garrett G35 900 is 62mm and rated for 550 on the low end. If I can achieve safe operation boost lower than 14psi I will choose to go that route for a more sustainable tune.
I do appreciate the advice especially with regards saving money on build. Unfortunately I do not have the luxury of space to park another car to part out. And since I've already purchased the heads, rods, turbo, etc, so it's a little late to turn back/change plans at this point.
I will definitely post an update for this build as I move forward.

 

building a revup too, wondering how your progress is going so far. I'm have the speedforceracing twin turbo kit and wiseco pistons yet to be installed. I still need the supporting mods (fuel, oil pump etc)

 

It sounds like you've got an exciting project on your hands! Building a big turbo setup can be both challenging and rewarding. Considering your components and target power, here are some recommendations:

1. Injectors:
   • Look into high-flow fuel injectors from reputable brands such as Injector Dynamics, DeatschWerks, or Bosch. For 700hp, you might need injectors with a flow rate around 1000cc/min or higher.
2. Fuel Pump:
   • Consider a high-flow, in-tank fuel pump. Brands like Walbro, Aeromotive, or AEM offer suitable options for high-performance applications. Ensure the pump can handle the fuel demand at your target power level.
3. Fuel Pressure Regulator:
   • Invest in a quality adjustable fuel pressure regulator to fine-tune and maintain the desired fuel pressure for optimal performance.
4. Fuel Lines and Fittings:
   • Upgrade to high-flow fuel lines and fittings to ensure proper fuel delivery and avoid any restrictions.
5. Fuel Management System:
   • A standalone engine management system would be ideal for precise control of your engine parameters. Consider options like Haltech, AEM EMS, or Motec for a comprehensive and tunable solution.
6. Tuning:
   • Engage with a professional tuner who has experience with high-performance turbo builds. A proper tune is crucial for maximizing power while maintaining engine safety.
7. Data Logging:
   • Install a reliable data-logging system to monitor key parameters during your tuning process. This helps in identifying any issues and ensuring your engine operates within safe limits.

Remember to consult with experienced builders and tuners in your community or online forums to gather additional insights and fine-tune your setup. Good luck with your turbo build!

 

Happy Holidays,
apologies for taking so long to update this thread. It has been a crazy busy year. So official update on the G35 build is as follows. I went ahead the VQ35DE Rev up build. For the engine I had the block sent out for machining over the summer. We did all forged internals (rods and heads), C8 cams and upgraded oil pump. The Garrett G35 900 turbo hasn't changed, but I had to get a larger HSG kit and wastegate (.84 AR to 1.01 and 38mm wg to 45mm) to avoid any EMAP issues. Currently the engine is final assembly and ready to move to fuel and tuning stage. I decided to have the upper plenum and intake ported before closing it up. Power goals have remained mostly the same however it is likely that we'll be making well over 600 HP at the crank though time will tell. I will list all build components to the best of my knowledge below. Build should be finished by early next year.

Parts list:
​​​​​Brian Crower forged Rods
Manley forged heads (standard bore)
JWT C8 cams
Cosmetic head gaskets
King racing and ACL rings
​Garrett G35 900 turbo
Garrett 1.01 HSG kit
Turbo smart Gen V hypergate 45mm wastegate
Treadstone performance TS-1200 intercooler
Bosch 1050cc injectors
Return fuel system
AEM 340 fuel pump
Mishimoto radiator upgrade
Oil pump and billet gear upgrade
370z headers
Innovate SCG-1 boost controller
AEM 30-3300 methanol injection kit
Uprev and Osisris tune

There is a number of extra parts such as brackets, braces, wires etc, but this is the gist of it. Once I have a dyno video to share I'll post it here. Hope everyone has a happy and safe Christmas!