Wow, haven't seen you around here in a while. I think it really depends what you're using it for. Straight line, you will never be happy. If you track the car 4-500whp is plenty to have lots of fun. I guess most people don't track their car though. Also, it's just accepting some limits before you start breaking everything in the drivetrain and/or upgrading everything.

Ya a lot of factors play into it for sure. Turbo size matters too. A freer flowing turbine means it'll creep easier. That 2.5" exhaust and open wg make a big difference. I got a ride in a local s2k with the ptuning kit 3" straight through exhaust with recirc wastegate and his creeped to ~15 psi. This was on a cool day, but I'm pretty sure he can't run <12psi.

 

yeah, been a minute! find myself missing the S2000 and wish I never parted it out, lol. Hd an M4 which was Nice but not anywhere near as fun as the S2ki. it Got stolen and totaled, lol. Now I have 4 kids and a Tahoe . and yeah, for normal every day stuff without going nuts on upgrading 400 is prob perfect

 

Does anyone know what the biggest turbo is that will fit with the PTuning turbo kit? I currently have the GTX3576 and am toying with the idea of going bigger. I'm not worried about lag or anything since I'm also running an Inline Pro F24 block, plus have anti lag set up in the AEM Infinity. I see that Garrett has a GTX3584RS which they say is good for up to 1000hp. The only big concern is I don't want to have to modify the downpipe, exhaust manifold, intercooler piping, oil/coolant lines. I just want to be able to bolt the turbo in place.

 

I'm assuming 3582? It's listed as an option for their kit, so it should bolt right up. One of my buddies is interested in the PTuning kit, and I had him inquire if they would fit the newer G-series turbos (G30-660 etc) and they said no. You'd think since they build these kits in batches periodically throughout the year they could atleast take the time to see if newer turbo options would work, but I guess not.

 

There is a guy who has used 2 of the G series turbos on his PTuning kit. I don't know if there was any modifications that needed to be made or not.

I know the 3582 is an option, but I'm wondering if something bigger like the 3584, or a bigger G series turbo would work.

 

I'd call PTuning and ask, or ask @RAIN H8R , he has a PTuning kit with a 3582 I believe and is making big power as well on a built motor. As far as I know he's planning to move onto an S2 Ultra manifold with his own upgrades/tweaks and an 8 injector setup. How much power are you planning on making? A 3582 should carry you well into the 700s, and at the point I'd start to think the limiting factor would be the design of the turbo manifold & wastegate size/placement at those boost levels....I don't think PTuning ever expected to realistically offer this kit as something to carry people into the 7-800whp range, because at that point you need to start looking into forward facing setups. Maybe ask @riceball777 as well, he's had a high-power PTuning setup for many years. I'm sure those 2 can offer you much better insight as they are much more knowledgeable about the specifics. These are the only 2 people I know of now aside from you that are running high-power PTuning setups.

This is the reason I stuck with a supercharger lol, I'm maxing it out and calling it a day....You're tired of 660/510 whp/tq? In an S2000? Some of you guys scare me! Even at roughly 520whp/320ish tq on E85 on my TTS kit with a stock 2.0 the car feels scary fast! It seems that going turbo just sends people down this bottomless rabbit hole of wanting more and more; nothing wrong with that, I just knew I'd be in the same predicament if I went turbo, so I decided to build my car with a reasonable end-goal (and to prevent myself from spending wayyyyy more money)

 

I'm not tired of the 660/510 at all. I've barely been able to use it at that power level because it destroyed a stage 4 Puddy mod diff, so my next priority is a Ford 8.8. When I bought this turbo kit, I never had intentions of going with a built motor, but i just ended up feeling a lot more comfortable with a fresh motor than my stock F22 that had been beat on badly by a couple of previous owners. Now that the motor is solid, once the drivetrain is up to the task, I might shoot for the stars on the PTuning kit.

So how do you know the PTuning kit isn't up to the task of 800+? I have no goal in mind, but I think it would be a lot of fun finding how how high I can go on this kit with a different turbo. The 3582 looks like it makes a lot of power, so maybe that's it. Maybe not too, it seems like nobody knows.

I've always felt like a super charger would be way more of a rabbit hole than a turbo kit. With a turbo kit all I have to do is turn a knob and I can make 400hp or close to 700. With a super charger your stuck at whatever your pulley will give you. So when you want more power, its a lot more money to gain even a minimal amount of power. Lots of people love them and lots of us love turbos.

 

I maxed out my supercharger setup right out of the gate. Smallest pulley I can run on a C38-92 blower (20 psi), custom Garrett intercooler with full 3" piping, flex fuel, ID1300x injectors, AEM infinity etc. I went immediately for all it would give me. Can probably get a little more out of it, but I think we're good lol. Regarding the rabbit hole comment I was speaking more for the necessity of a built engine/trans/rear diff. With the linear power delivery of the supercharger I can get away with a stock motor and trans so long as I drive reasonably. Rear diff is a different story but it held up to a summer's worth of abuse so far. I wasn't looking to spend money on a built motor, rear diff, and a trans conversion. Not trying to start an argument of supercharger vs turbo either, I just set a pretty broad limit for myself when it came to how much power I wanted as well as how much money I would be willing to spend on the project overall. A project car is never technically done, but I'm slowly homing in on my ideal setup at a reasonable/useable power level, stopping there, and just being happy with the car. If it was turbo, the sky would be the limit, and I'd be doing exactly what you're doing now - chasing more lol.

 

Yep. I feel the same way. I'm turbo and plenty happy with ~400whp to be honest. All depends on what you want. If I wanted insane HP numbers/straight line car I'd probably opt for a turbo setup on a Vette. Make 800whp without breaking a sweat. A friend is well into the 4 digit range and it's just insane.

 

Exactly, I'm not knocking other people's choices, but so much as saying that I don't necessarily understand them either is kinda an insult to them as well, so I'm just going to keep my mouth shut. The amount of money you need to invest into an s2000 to make big power while at the same time more or less taking away it's inherent characteristics is staggering. When you're making that much power all it's good for is a straight line machine at that point, and exactly like you said, I'd do that with a corvette using a swapped-in junkyard iron block LQ motor with a giant ass turbo and just make 900 on the stock bottom end all day lmfao. But I digress, I'm going off topic, so I'm not gonna comment further on it LOL.