Quick spool turbo options

[Fimsaho]

Hello everyone, I am running an s280 stock fuel setup and am curious about getting the low end donkey kick torque back. It looks like all turbo upgrades apart from whoosh hybrid and puma speeds x series turbos, are geared to making huge power up top. Are there any other smaller frame, quicker spool turbo options for those who prefer the low end torque of the stock unit?

How does a 2860 in a smaller housing fair against the s280 or even a whoosh hybrid?

Are there any other Garret, Borg Warner, precision turbos that are sized smaller similar to the stock kp39 frame, but with better internals, ball bearing....etc?

I would love to get the donkey kick back and then some meaning 300ft lbs and torque + spool coming in strong at 3k. I realize this isn't good for the engine, but I would like to eventually put this kind of stress on a built engine. I don't need 400+ hp, would just like whoosh hybrid type performance with a perhaps stronger, more robust and reliable turbo.

For now, I am planning on installing a WMI kit to hopefully bring the torque down on this s280 setup as I have no access to ethanol.

Thoughts and experiences appreciated.

 

[TyphoonFiST]

Torque down low = more likely to break stuff* The hybrid sordove keeps the donkey kick from what i've gathered. Garrett and all other options if a smaller turbine exhaust housing is used it becomes a restriction and you can get exhaust reversion. I'm on a TIAL .52 A/r housing with DHM360R and going to the TIAL .64 a/R Housing That i had with my ATP Gen2 gtx2860 setup so being smaller isnt always the best.

 

[Fimsaho]

So are there even any turbos s280 sized that spool the way it is? I've heard even the 2860 is still going to come with a spool penalty compared to the s280. I'm thinking of the turbos that come on other forced induction 4 cylinders like the Kona/Elantra N, GTI and Golf R. Whoosh and puma speed are the only two that manufacture hybrids. Are there custom options from a company like Boost Lab? Where they could make something like the hybrid, but ball bearing perhaps. I know it's bad for the engine, but I would have thought someone might have built and engine for that purpose by now. The Elantra makes peak torque at 2100-4700 which sounds somewhat similar to the fiesta on stock turbo/tune, think similar for the VB WRX. CTR and GR Corolla I think are a little higher up. I just like that feeling, I feel like I'm really slow from a stop.

 

[slopoke]

My 2860 hit max torque at 4.5K ish. If the S280 was available when I did my second turbo upgrade, I would have chosen it. Dyno chart below of my HP/TQ numbers.

 

[Plisky]

Sorry for the necro-post, but for anyone else that got here through Google searching for a quicker spooling ball bearing turbo for our cars, a decent aftermarket ball bearing alternative is the Xona XRC4351S. It's 400 hp capable but not much bigger than our stock turbo and looks to mostly go on side by sides. Only problem is just the turbo is the same price as an entire S280 kit.

Torque down low = more likely to break stuff* The hybrid sordove keeps the donkey kick from what i've gathered. Garrett and all other options if a smaller turbine exhaust housing is used it becomes a restriction and you can get exhaust reversion. I'm on a TIAL .52 A/r housing with DHM360R and going to the TIAL .64 a/R Housing That i had with my ATP Gen2 gtx2860 setup so being smaller isnt always the best.

As someone that just wants a decent spooling ball bearing turbo for stock fuel and 280-300ish whp, would you recommend the 0.52 housing 2860R? Where did you hit full boost? I'm interested in the G25-550 with the 0.49 AR housing, as well as your old Tial setup, but I can't find any numbers or dyno sheets online for our cars running them.

 

[TyphoonFiST]

Sorry for the necro-post, but for anyone else that got here through Google searching for a quicker spooling ball bearing turbo for our cars, a decent aftermarket ball bearing alternative is the Xona XRC4351S. It's 400 hp capable but not much bigger than our stock turbo and looks to mostly go on side by sides. Only problem is just the turbo is the same price as an entire S280 kit.



As someone that just wants a decent spooling ball bearing turbo for stock fuel and 280-300ish whp, would you recommend the 0.52 housing 2860R? Where did you hit full boost? I'm interested in the G25-550 with the 0.49 AR housing, as well as your old Tial setup, but I can't find any numbers or dyno sheets online for our cars running them.

You wont really notice the Difference it maybe 500rpm negligible but like i said it can become a restriction up top in higher rpms.

 

[Fimsaho]

Sorry for the necro-post, but for anyone else that got here through Google searching for a quicker spooling ball bearing turbo for our cars, a decent aftermarket ball bearing alternative is the Xona XRC4351S. It's 400 hp capable but not much bigger than our stock turbo and looks to mostly go on side by sides. Only problem is just the turbo is the same price as an entire S280 kit.



As someone that just wants a decent spooling ball bearing turbo for stock fuel and 280-300ish whp, would you recommend the 0.52 housing 2860R? Where did you hit full boost? I'm interested in the G25-550 with the 0.49 AR housing, as well as your old Tial setup, but I can't find any numbers or dyno sheets online for our cars running them.

Is that not one of the turbos offered in the worfab kits? And if not what else do you need to run it?

 

[Plisky]

Is that not one of the turbos offered in the worfab kits? And if not what else do you need to run it?

The 2 they offer are a bit bigger, so to run the 4351S you would need to make your own kit.

You would need the turbo
V-band manifold with external wastegate
Custom v-band downpipe with a pipe for the wastegate
Water and oil lines
BOV (symposer BOV would be easiest)
Boost tap for the BOV
Silicone elbow to connect compressor inlet to the intake
Silicone tube to connect compressor outlet to hotside pipe

Since I've been considering the 4351 and G25-550, I've designed a stock turbo position quickspool manifold which I plan to get 3d printed in 316 stainless for ~480ish, but even then, I'm still looking around 3400 total for the kit. So it's a lot more expensive than just slapping on an S280 and getting near the same power.

 

[Fimsaho]

The 2 they offer are a bit bigger, so to run the 4351S you would need to make your own kit.

You would need the turbo
V-band manifold with external wastegate
Custom v-band downpipe with a pipe for the wastegate
Water and oil lines
BOV (symposer BOV would be easiest)
Boost tap for the BOV
Silicone elbow to connect compressor inlet to the intake
Silicone tube to connect compressor outlet to hotside pipe

Since I've been considering the 4351 and G25-550, I've designed a stock turbo position quickspool manifold which I plan to get 3d printed in 316 stainless for ~480ish, but even then, I'm still looking around 3400 total for the kit. So it's a lot more expensive than just slapping on an S280 and getting near the same power.

Damn, can you share everything please? That sounds fantastic

 

[Plisky]

Damn, can you share everything please? That sounds fantastic

I can post all the links to find everything either later day or tomorrow.

If you mean the manifold, I didn't really plan to sell them since I'm afraid of the liability of an untested part, and there is a decent amount of machining and polishing I have to do once it arrives, so it'd end up being around 700 or a bit over after shipping, which seems a bit steep. I really wanna find a used S280 kit, so I can test fitment and performance on my own car with plenty of others to compare to

 

[Fimsaho]

I can post all the links to find everything either later day or tomorrow.

If you mean the manifold, I didn't really plan to sell them since I'm afraid of the liability of an untested part, and there is a decent amount of machining and polishing I have to do once it arrives, so it'd end up being around 700 or a bit over after shipping, which seems a bit steep. I really wanna find a used S280 kit, so I can test fitment and performance on my own car with plenty of others to compare to

Not sell it, but maybe share the file or something so others can print it as well. I'm not sure what goes into designing your own. Could I pay someone who knows CAD to do it?

 

[Plisky]

Not sell it, but maybe share the file or something so others can print it as well. I'm not sure what goes into designing your own. Could I pay someone who knows CAD to do it?

I'm not sure if I want to give out the file in case I ever do want to sell it since I've put a fair amount of work and research into it, but I'd be willing to send it for the exact price I'd pay myself (316 stainless ranges from 400-500 depending on the day, titanium ranges from 900-1150). Just be aware that you'll need to drill out all of the holes (I will order them undersized on purpose), drill and thread anything that needs to be threaded, and sand the mating surfaces flat. I'd recommend polishing it a bit too since metal 3D prints have a texture, but I doubt it would effect much airflow wise.

I'm willing to do the CAD for free if you're willing to test it before I do myself, haha.

The main issue would be fitment testing; anything that fits stock would fit (so the 4351 would, I think), but larger turbos aren't a guarantee. Ideally I'd be able to find a blown Escape 1.6T engine for cheap and print the manifold myself in plastic to check fitment before dropping up to $500 on a metal one.