Is your sig accurate??
If so, you have a chit-ton of timing, with small injectors.. but a big turbo.. the DV's (whatever they actually *are* since what you were told wasn't 100% accurate) can't be making up the difference between 5x12's and a 66/74.
You probably need some 5x16's to spool the turbo better in the cruising (low-boost) range...
I know my 5x14's run cleaner than my 5x12's on this same turbo.. they spool it better. So cruising MPG's are up.
Your 26º timing shifts the powerband up a bit in the RPM's too, so maybe you're cruising below the RPM's where it makes decent power.
Try and pop out a DV sometime and figure out what you actually have.
^^ If those are 8mm diameter valves the dv on the right appears to be an 022 which is fairly smokey.
^^ If those are 8mm diameter valves the dv on the right appears to be an 022 which is fairly smokey.
Those are both 8mm and they are both cut... so there's no actual 022 in that picture. Just a couple of who-knows-what-cut DV's.
I can say they are similar ddp 024. the so called SDX valves are a mystery really cause Weston is saying an .020 was never made by SDX so.... They do have 056 and 131 stamped on the top.
I can say they are similar ddp 024. the so called SDX valves are a mystery really cause Weston is saying an .020 was never made by SDX so.... They do have 056 and 131 stamped on the top.
These were sold as 020 to me, yes they are 8mm. They just slobber is the only way I can describe it, throttle was deadened compared to my new valves and my stock 131 valves. Lots of fuel, just not what I was looking for, for a hot daily driver.
Mystery valves for the win! Personally I would throw them all in the trash and run 7mm pieces. I've had a few and the 7mm have always come out on top for me according with my experience with the 70cc and 130cc versions. The 70cc dropped idle a bit from N to P but the way they drove in combination with the way they fueled was worth it to me. I have a set of 100cc versions in my pump now but am still waiting on the new turbo before I can give any observation on how they run.
*Throw them in the trash is figurative*. This may not translate well on the interweb!
I took the aggressive SDX valves out and I know I took a small hit on horsepower, but going to a set cut by an individual who will remain nameless... I picked up almost 350 rpm idling an the throttle is CRISPY. The injection event is handled better in my opinion.
SDX on the right "032" on the left
Whatcha want for the 130cc valves? Do they run cleaner in the lower rpm than regular 8's?
Whatcha want for the 130cc valves? Do they run cleaner in the lower rpm than regular 8's?
These new "7mm" DV's are just Bosch 035's w/ shoulders turned down to various thicknesses and diameters.
I have ran the 7mm 035's and I didn't like them. They were like a 024 with less power and a crappy idle.
I am not 100% sure this is accurate. I have gotten all of my sets from Weston. We'll see if he decides to chime in.
What bad idle characteristics did you have again? Was it the same big drop from idle in N to idle in D?
Weston is saying an .020 was never made by SDX so....
These new "7mm" DV's are just Bosch 035's w/ shoulders turned down to various thicknesses and diameters.
There are quite a few different 7mm delivery valves.
Only thing I dislike about the 024 is that it really only adds about 50cc's, a 191 adds about 60cc's.
Both 7mm versions I have flowed are uncut, 70cc and 100cc gain over a 181.