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ON3 Turbo Kit recommendations?

Cue_5oh

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This currently the set up I have option wise that I plan on purchasing here in the next few weeks.
Other than some upgraded axles and engine/transmission upgrade. What else would anyone recommend purchase wise, such as fueling for a fuel return system and upgraded fuel pumps and rails?
Curious if anyone else has this specific kit on their 18+ Mustang GTs.
Any help would be graciously appreciated as I am wanting to purchase this sooner than later!

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wazslow

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Can you fabricate/weld? Sometimes those on3 kits don't fit quite right and need to be modified. Just something to think about.
 

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You should probably either add a bap or a fuel system, depending on if your planning to run e85.

I almost went the on3 route but decided on hellion. Super happy with the results. Kit fit like a glove, oiling system is amazing, the wastegates sound mean, instructions and support are top notch. If I did it all over I'd definitely spend the extra cash for hellion again.
 
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Cue_5oh

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Can you fabricate/weld? Sometimes those on3 kits don't fit quite right and need to be modified. Just something to think about.
I can tig, not very good at it. I have a local shop I trust to install or re-fab if needed, I was planning on doing the install myself but if it becomes difficult I would hand it off to a shop/tuner.
 
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Cue_5oh

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You should probably either add a bap or a fuel system, depending on if your planning to run e85.

I almost went the on3 route but decided on hellion. Super happy with the results. Kit fit like a glove, oiling system is amazing, the wastegates sound mean, instructions and support are top notch. If I did it all over I'd definitely spend the extra cash for hellion again.
I would go Hellion but I specifically want a single turbo set up. Once the turbo kit is installed I will probably no longer daily the car other than a drive around town, luckily I have two cars and access to tons of E85, so it would probably go E85. I was thinking a Sai Li fuel return style system.
 

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Sins550

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Fore fuel system. You will need colder spark plugs and definitely pick up a turbo blanket or it will be hot as Sh*t in there. Rest looks good though.
 

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I would go Hellion but I specifically want a single turbo set up. Once the turbo kit is installed I will probably no longer daily the car other than a drive around town, luckily I have two cars and access to tons of E85, so it would probably go E85. I was thinking a Sai Li fuel return style system.
Why single over twins?
 
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Cue_5oh

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Fore fuel system. You will need colder spark plugs and definitely pick up a turbo blanket or it will be hot as Sh*t in there. Rest looks good though.
Heck yeah, I was thinking Fore. Then I think this is what I will do. Looking just to run around the 800 whp mark currently id rather go overkill with the fueling before I modify the ON3 for a T6 flange turbo build lol
 
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Cue_5oh

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Why single over twins?
Just like the compact size of it all, the looks and mostly to be different. Here where I live 99% of people have a centri set up or twin turbo set up, I plan on refreshing the top end internal wise down the road anyways for a better peak of RPM which I think will compliment the single pretty good due to these engines liking boost.
 

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No way I would pay 7800 for an on3 turbo kit.
If you want a single you should go bl fab.
 

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Cue_5oh

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No way I would pay 7800 for an on3 turbo kit.
If you want a single you should go bl fab.
The BL kit ends up being over $10k+ with the same options. On3 is a perfect kit unless you plan on making 1100+ whp, which even then on the ON3 kit you can cut the T4 flange and go to a T6 and maybe put a better set of headers on there and run that power. Plenty of people run ON3 and have no issues. If I took away the clutches and fueling the kit would be around high $5k.
 

illtal

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The BL kit ends up being over $10k+ with the same options. On3 is a perfect kit unless you plan on making 1100+ whp, which even then on the ON3 kit you can cut the T4 flange and go to a T6 and maybe put a better set of headers on there and run that power. Plenty of people run ON3 and have no issues. If I took away the clutches and fueling the kit would be around high $5k.
You're going to modify a kit to make it fit.

Then you're going to modify it so that the back pressure from a single T4 flange doesn't completely choke the engine over 700-800 HP.

I see money adding up. There are videos out there with what a Dyno graph looks like on this kit.



Also I didn't know bl fab was over 10k, fook that.

What options you got on this to make this kit almost 8K? I mean if your mindset is already set to modify the kit then go for the cheapest option.

*Edit. I know a builder who couldn't install the kit because they didn't send the right flanges. He hand to get downpipes and flanges MADE to get the to fit because on3 didn't have the right stuff at the time.

Edit. I see you have a few options on there. nothing crazy see here 2 lbs of boost only gains ~ 30 hp the torque actually falls off a lot after 5000-5500 RPM.

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illtal

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Not hating just trying to save you a headache. But it's your car, your money. Do as you please. I was 2 seconds away from pulling the trigger on this one when I saw a few things I didn't thing about from other people builds.

The one guy that was on this forum had to go T6 to get more out of the setup. Again more time and cash to rework all of that. Then go and buy a new turbo.
 

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I know a few guys running ON3 with great success but as pointed out, you should factor in custom piping. (all of them had a shop do custom piping/fab). The single probably precludes the harness/ECU relocation which is a must on the top twins if you don't want water issues. On3 has more of a menu from cheap to upgrade to the same quality level of turbos so pick according to your needs.

You'll definitely need to the additional costs of a fuel system a, good controller and stuff like a clock/steering wheel switch for scramble if you're making decent power (the boost comes on like a freight train with torque so it's spin city unless you smoothen things out with the controller and/or scramble two stage).

I tend to be a "buy once cry once" kinda guy (after doing so many builds) but I also understand working on a limited budget.

To have any sort of optimal success, you should probably factor in a side exhaust exit in the front so that means cutting body stuff and fabbing exit hole.

The On3 kits can be pretty formidable but you're paying less because it's more of a custom fit to your needs type kit whereas the others are more R/D to have components that all fit correctly with less customization.
 

illtal

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I know a few guys running ON3 with great success but as pointed out, you should factor in custom piping. (all of them had a shop do custom piping/fab). The single probably precludes the harness/ECU relocation which is a must on the top twins if you don't want water issues. On3 has more of a menu from cheap to upgrade to the same quality level of turbos so pick according to your needs.

You'll definitely need to the additional costs of a fuel system a, good controller and stuff like a clock/steering wheel switch for scramble if you're making decent power (the boost comes on like a freight train with torque so it's spin city unless you smoothen things out with the controller and/or scramble two stage).

I tend to be a "buy once cry once" kinda guy (after doing so many builds) but I also understand working on a limited budget.

To have any sort of optimal success, you should probably factor in a side exhaust exit in the front so that means cutting body stuff and fabbing exit hole.

The On3 kits can be pretty formidable but you're paying less because it's more of a custom fit to your needs type kit whereas the others are more R/D to have components that all fit correctly with less customization.
I know a guy that has the top mount twins. The installer is about 6 miles away from where I grew up. I talked to him about getting one installed before the on3 single showed up. He literally said to me, "I will never install another on3 turbo kit at this shop. It's not worth the cost to the customer, not worth my time, and not worth the headache."

So yea save a little on the front end and pay more on the back end.

If paramount speed didn't want 9k for a turbo-less kit I'd been all over that one.
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