Jump to content
SAU Community

Recommended Posts

Thought this may be of interest even though it was an XR6 Turbo Falcon used as the test vehicle. Also note what happens on the run when the intake temp (IT) is much higher than the AT (7th dyno run).

http://www.fordxr6turbo.com/forum/index.php?showtopic=59178

Edit:

Summary:

For the uninitiated ....the number designation is for the number of cylinders and the F designation is for forced induction......so a turbo 6 should use Shoot 6F

Shoot4 317.7rwks

Shoot4F 314.8rwks

Shoot6 317.9rwks

Shoot6F 323.4rwks

Shoot8 326.1rwks

Shoot8F 329.8rwks

Normal ramp mode (not shootout) 315rwks

Shoot6F AT15 IT59 349.8rwks.....so 26rwks increase when intake temp is significantly higher than atmospheric temp

Edited by juggernaut1
falls back to the old saying dyno is a tuning tool , not a place to wanker over numbers.

way too many variables

True, or get rid of the variables......

Thats why i bought a dynapack (even though i was a dyno dynamics user)... i can never get accused of fudging figures...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • But if I smoke test 5th cylinder it’s all ok, no leaks  when I try with 2nd it’s leaking exhaust and intake, it doesn’t come from oil dip stick.    so maybe when car was running poorly, rich or sth. Spark plugs were black and covered in charcoal or sth lookalike. could potential contamination make valves not seal properly? is there also a possibility that rb’s don’t have equal performing cooling passages  meaning back of the engine will be hotter than front. Can this cause improper wear if engine was running under load for short time? Or carbon build up could just burnt from 4-6 and is still on 1-3?   I out of my head like really. Timing is as manual crank-exhaust 47, exhaust-intake 38 at this point I thinking about give it a try and make another 500-1000km and check if anything change, if not I will most likely disassemble engine head /or whole engine and send it back to rebuild. It’s killing me     
    • Thanks Duncan, I don't have a GTR these days mate. Gone soft..
    • Yeah. air pressure leakdown test is where I would be headed next here, using one's ears to determine whether it's the valves or bores/rings leaking...
    • More likely you didn't bed the rings in correctly and have glazed the bores. Running with misfires on a fresh build is somewhat of a no-no. Surely no-one "smoke tests" the combustion chamber? That's what a leakdown test is for. Smoke testing is, um, a bit of a wank at best, and only really useful for external pipework.  
    • Well, obviously that kit is not a relocation kit or anything other than just the original isolators and the like. I would suggest that it should be a matter of just bending up some flat bar to build a mount over the top of some other diff, with the flat bar held to the back of the diff by the rear hat bolts. A little welding, a little thinking about how to secure the front of this structure, maybe some different hoses in case you can't get it in just the right place.
×
×
  • Create New...