1.8L Sr20 T25 turbo DYNO

[miatata]

Originally Posted by gospeed81

Thread title:

1.8L SR20 T25 turbo dyno

The 1.8L part means it's the Mazda 1.8L....with the TURBO (T25) off the SR20.

Ohhh ok, haha. Gotcha.

[240_to_miata]

Yeah... sorry for the mix up.

I have owned multiple SR20 swapped 240sx's tho.

If an sr20 put out 200 rwhp at this boost level I would be sad. My sr20 with a s14 t28 on it put somewhere close to 240-250 rwhp

[miatata]

Yeah, I was thinking those numbers looked off

[Braineack]

your sr20 also has a 2.0L motor, plus the peak HP numbers seemed to measured at closer to 10psi, plus his spark table is fairly conservative, plus it's on a loaded dyno so the number will look lower than a dynojet.

[240_to_miata]

Originally Posted by Braineack

your sr20 also has a 2.0L motor, plus the peak HP numbers seemed to measured at closer to 10psi, plus his spark table is fairly conservative, plus it's on a loaded dyno so the number will look lower than a dynojet.

exactly. my sr20 was a 2.0 with a much better flowing head. I'm happy with my miata's power and I'm excited to put water meth on and get a much more agressive map going on.

Just to show you what timing can do:
My roommates desided it would be a good idea to take their 02 WRX to dyno day.... with a majorly blown head gasket and crappy rings. They went there with the intention of blowing it up.

First pull with the map that was currently on there... 220 hp. after 2psi of boost and 9* of timing (from 14* at full boost to 23* !!!) with no water meth....... 250 hp!!! Knock wasnt present until the final run. it was way beyond agressive, but still interesting to see.

The car did drive home and is awaiting a new motor.

[Braineack]

iirc, im closer to 25* where your at 14* @ 7K on the 180kPa row.

[240_to_miata]

water meth???

My timing map closely resembles one of your older ones that has been posted.