Switzer R1K: Tuning, Round #2: 955AWHP and 904AWTQ!
#1
Switzer R1K: Tuning, Round #2: 955AWHP and 904AWTQ!
Hello Everyone.
Today we finished up tuning of our second R1K GTR. This one had to meet an overseas shipping deadline so the pressure was on Tym to deliver a safe, yet powerful tune for both 93 octane pump gas and VP Racing Fuel's Q16.
Here is the 93 octane dyno chart:
772AWHP and 688AWTQ

The Q16 dyno chart:

For those of you who said our last dyno sheet from the R1K, where it was the first to break the 1000awhp barrier, was a bit "laggy", here is a comparison:

Dyno on this latest run was a peak of 36 tapering to 32psi at the end of the pull.
Build video is coming soon...
- Neil
Today we finished up tuning of our second R1K GTR. This one had to meet an overseas shipping deadline so the pressure was on Tym to deliver a safe, yet powerful tune for both 93 octane pump gas and VP Racing Fuel's Q16.
Here is the 93 octane dyno chart:
772AWHP and 688AWTQ

The Q16 dyno chart:

For those of you who said our last dyno sheet from the R1K, where it was the first to break the 1000awhp barrier, was a bit "laggy", here is a comparison:

Dyno on this latest run was a peak of 36 tapering to 32psi at the end of the pull.
Build video is coming soon...
- Neil
#5
There is a huge difference in response between the earliest tested version of the R1K and what we have evolved the hardware to. We are always working to make things better. Don't get too caught up in the hp loss up top...it's there to be had with a few more adjustments, but we also were under the gun to get the car tuned in just one day and this was all we had time for.
This tune is roughed in, but there is refinement work to be done. The car will likely be tweaked once it reaches its destination across the pond. This is a brand new 2011 with under 100 miles on the odometer. The window sticker is still in the window. We had precious little time to break in the engine and with the condition of the roads here, we had to literally break it in on the dyno and then we had to flog it. The car will pick up more as the rings finish seating, etc... as this has been our experience. This combination had a couple of compromises simply because one of the build criteria was that it had to be able to be turned down enough to run on substandard fuels and survive if necessary when not being raced (commuting from one city to another, etc.). We've made some subtle modifications to the hardware, but everything is essentially identical to the first R1K mule.
Remember too that we learned a lot after the initial dyno tuning of the first R1K and that particular car has not yet been back to the dyno. It has since run over 160mph in the quarter and we expect it to improve a bit come spring. We're applying all of the updates to that car as we speak and we expect it to produce the same power curve as today's car with a bit more top end.
This tune is roughed in, but there is refinement work to be done. The car will likely be tweaked once it reaches its destination across the pond. This is a brand new 2011 with under 100 miles on the odometer. The window sticker is still in the window. We had precious little time to break in the engine and with the condition of the roads here, we had to literally break it in on the dyno and then we had to flog it. The car will pick up more as the rings finish seating, etc... as this has been our experience. This combination had a couple of compromises simply because one of the build criteria was that it had to be able to be turned down enough to run on substandard fuels and survive if necessary when not being raced (commuting from one city to another, etc.). We've made some subtle modifications to the hardware, but everything is essentially identical to the first R1K mule.
Remember too that we learned a lot after the initial dyno tuning of the first R1K and that particular car has not yet been back to the dyno. It has since run over 160mph in the quarter and we expect it to improve a bit come spring. We're applying all of the updates to that car as we speak and we expect it to produce the same power curve as today's car with a bit more top end.
Thread
Thread Starter
Forum
Replies
Last Post
Neil Switzer
Cayenne | Panamera | Macan
10
Nov 2, 2011 01:43 PM
Neil Switzer
Japanese Speed
1
Mar 2, 2011 01:45 AM
Bookmarks
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)












