TT ***S290*** thread :)

[Frontline17]

Skip the Gtx2860r, old ass ancient tech.

G25 550 has the most top end out of all the conventional turbo kits but it's also the laggiest. The S290 has a similar top end but it spools significantly sooner.

If you're looking for top end that doesn't tapper off at all...S290 is a great choice.

The G25 550 is slightly too much turbo for this car really unless you can spin more rpms. You would need a bigger cam, ported head and intake to justify running it.

Here's a graph of the powerband
Red G25 550
Yellow S290
Blue S280

View attachment 67129
View attachment 67130

As you can see, the G25 550 has an unacceptable torque dip, it's just too much. The S290 remains flat till the end.

Team NDR used to run the G25 550, when they switched to the S290 they actually got faster because it spools 1000 rpms sooner than the G25 550.
People need to do research instead of just running off of dogmatic opinion of from the cult following of the S280.

I plan on buying it soon myself.
Hope this helps.

I like the looks of the power band on the s290. Idk why people hate on it. Do they have reliability problems?

 

[dhminer]

I like the looks of the power band on the s290. Idk why people hate on it. Do they have reliability problems?

Not that I know of. I think people generally say why bother because the s280 can get you more power than most people will push with a stock engine.

 

[IDailyDriveABean]

I like the looks of the power band on the s290. Idk why people hate on it. Do they have reliability problems?

Just lack of research really. They seem reliable from what I've seen.

Keep in mind that the S280 torque falls off once it reaches redline where as the S290 torque keeps chugging into redline

Line up these 2 at a 60 roll and you'll see a noticeable difference in top end, freight train effect.

 

[Mega ST]

MO15Fiesta was running an S290, but he kind of fell off the map. He did great things with the S280 and moved up to the S290. He did some passes that looked promising then that was the last I heard from his adventures with the S290. That was 2023 I think.