k24madness

iTrader: (6)

I look forward to the electric turbo hydrogen fuel cell. There's got to be evil opportunity in that!

Warpspeed

I dunno.......

The real bikers would look down with total disdain at anything that makes no noise, no gears, and requires a power cord, as a pansy bike for wimps.
Even if it can go from zero to the speed of light in under two seconds.

There will always be a market for big, loud, intimidating, and fast.
Even if you have to build it yourself and if its not quite legal.

andyfloyd

I'm ok with this.

Ted75zcar

iTrader: (2)

Ftfy

My miata does 0-60 someplace right around 4-ish seconds and it is no longer fast.

andyfloyd

Then you need to make it faster?

Warpspeed

I have similar long term plans, TVS1320 + probably a GTS3070r.
Have done the compound trick myself many times before, first attempt was over thirty years ago, have learned a great deal since then.
Already have a front entry TVS, just bought a BP-4W today in fact, ideal as a spare engine to sort out the blower drive, and ITB setup.

sixshooter

iTrader: (12)

Loud and slow is the tempo for most idiots on the road, from Hondas to Harleys to pickups. Loud is stupid and unrefined. We have the technology to be very fast with a refined sound but most mouth breathers haven't figured it out yet.

Sorry for the digression from turbo talk.

shuiend

iTrader: (24)

BoshiWheel has a G25 copy out now. Apparently it is not made very well.

leita0

Any news on this turbo?

Anyone with this turbo fitted?

I am looking for some information on this and on the G25-660.

Tran

I've seen site sponsor SPS Motorsport in Germany offer a kit that appears to use a Kraken top mount manifold and they say 330hp for the G25-550 and 360hp for the G25-660, both with a 200 cell cat.

https://sps-motorsportshop.com/shop/...-1.8-g25?c=220

By way of comparison these numbers are a bit lower than what they say the EFR 6258 and 6758 are recommended for (330-360 and 360-400 respectively).

Turbine sizes are mentioned but I'd assume the G25 ones are limited to the 0.49 A/R T25 housing here.

leita0

They are a bit conservative they only do 1.1 or 1.2 bars of boost.

I have a GTX2860R gen2 and i am making 365HP with 1.45 bars.

jonboy

Have just dropped Guido@SPS a PM to see if he can post some real world feedback on how these compare to the older Garretts and the EFRs..

Tran

That sounds pretty good, what housing, fuel, and manifold? And which G25 variant are you thinking of moving to?

andyfloyd

Yea same here, I'm running a 2860gen2 at 1.5 bar. Making 370whp

Kraken

Think they prefer the EFR 6758 in general

leita0

It's a AR 0.64 with 98Ron and my manifold it's a Kraken tip mount.

I looking into the G25 660 T25 Ar .49 but that's my question if will do around 450hp?

leita0

Do think the turbo it's limited by the compressor or by the turbine exhaust side?

codrus

It's the compressor. All the GTX28* turbos use the same turbine.

--Ian

leita0

But the gtx2867r makes more power.

Do you think that a g25 660 AR .49 will make around 450 500hp?

leita0

But the gtx2867r makes more power.

Do you think that a g25 660 AR .49 will make around 450 500hp?