Champion 68s exceed capabilities of GT2RS/.2tt intercoolers
#61
10-28-2015, 09:02 AM
lol 775bhp -885bhp VTGs claims (whp by the way!!) very much snake oil - I think everyone on thread is on the same page - you know your (our) VTG's limitations and are happy with them (as am I). For everyday use they are no doubt not bad at all. Some of the VTG power claims on this forum beggar belief and demonstrate zero knowledge by certain tuners and forum members. To make it worse they then come up with every excuse in the world why their VTGS have not run 0-300kph + hence cannot post VBOX and logs of IATS / EGTS for over 8 years +. 885 VTG whp my foot! Quite a few US tuners bar a few seem to make these wild VTG HP claims - doesn't seem to happen as much over here in Europe - maybe there are stricter trade description laws or may be European tuners power packages are more field tested on regular basis 
#64
03-31-2016, 09:22 AM
IATs don't change over other types of fuels, they are just much more irrelevant. That's the difference. You can safely back down the timing and boost correction factors as IATs increase on E85. All of those parameters are bone stock on my car BTW, and my IATs barely even crest 100 F in 70 deg weather during a 40-130 pull for a 60-130 time.
#65
03-31-2016, 08:42 PM
Wow...from 52sec on that video to 1m 04 sec....ambient temp on the cluster jumps from 65 degrees to 95
Here is a vid that shows one part of our temp tests. Basically some runs above 200 km/h and then 200-300. One goes to 307 and the other one to 323. A friend of mine was sitting next to me with a Porsche tester and we were looking at the exhaust temps while I was doing some pulls. This was just a temp test, so no contest at all.
The car was pulling strong to 323 and would have pulled higher, but I saw a suspicious car in front and I slowed down a little to 280 - then he pulled over I had to test the brakes
That's about 3 minutes of different heat levels at Autobahn speeds. Completely different to single 1/4 mile runs or short highway pulls.
This is a heavy 997.1 cabriolet running 100-200 in 6.1 seconds.
GOPR0136 - YouTube
The car was pulling strong to 323 and would have pulled higher, but I saw a suspicious car in front and I slowed down a little to 280 - then he pulled over I had to test the brakes
That's about 3 minutes of different heat levels at Autobahn speeds. Completely different to single 1/4 mile runs or short highway pulls.
This is a heavy 997.1 cabriolet running 100-200 in 6.1 seconds.
GOPR0136 - YouTube
#67
04-01-2016, 12:28 AM
As far as I can recall, we never had 65 to 95 C here in Germany and the fact that I still can recall, proves me right
#69
04-03-2016, 12:36 AM
This is ambient temperature. 6.5 degrees C = 43.7 degrees F
9.5 degrees C = 49.1 degrees F
The difference is 5.4 F
The temperature sensor is sitting near to the water cooler on the right. After a pull you sometimes can see the "heat wave" that goes thru the car. The water cooler gets pretty warm and heat emission also changes the temperature reading of the ambient sensor by 1-2 degrees C.
#70
04-04-2016, 01:05 PM
My 68 mm Vtg's finally performed like I thought they should've this weekend at the No Fly Zone 1/2 mile event in CA,previously at these events i couldn't get passed 164 mph ,but a simple spark plug change & i was tearing it up .I hit a 172 mph then a 175 & my best was a 176.64 mph the car was getting faster & faster these where back to back runs no waiting in between runs.
Last edited by twturbo; 04-04-2016 at 01:23 PM.
#71
04-04-2016, 01:10 PM
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My 68 mm Vtg's finally performed like I thought they should've this weekend at the No Fly Zone 1/2 mile event in CA,previously at these events I couldn't get passed 164 mph ,but a simple spark plug change & I was tearing it up .I hit a 172 mph then a 175 & my best was a 176.64 mph
Manuel
#72
04-04-2016, 01:25 PM
Former Vendor
My 68 mm Vtg's finally performed like I thought they should've this weekend at the No Fly Zone 1/2 mile event in CA,previously at these events i couldn't get passed 164 mph ,but a simple spark plug change & i was tearing it up .I hit a 172 mph then a 175 & my best was a 176.64 mph the car was getting faster & faster these where back to back runs no waiting in between runs.
Gotta love the quick recovery time of those CMS I/C's
#73
04-04-2016, 01:48 PM
My 68 mm Vtg's finally performed like I thought they should've this weekend at the No Fly Zone 1/2 mile event in CA,previously at these events i couldn't get passed 164 mph ,but a simple spark plug change & i was tearing it up .I hit a 172 mph then a 175 & my best was a 176.64 mph the car was getting faster & faster these where back to back runs no waiting in between runs.
I also noticed a huge change when running the plugs Turbo Mike had recommended.
I bent my rods at the Shift Sector event that I ran 173mph (according to my speedometer). Do you think you are at the edge/limit of what power your rods can handle?
#74
04-04-2016, 02:07 PM
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#75
04-04-2016, 05:24 PM
Used NGK, FPR7B and 4853 appears on my receipt. Another receipt 18,000 miles later reads NGK.4853.I I don't know why I have 2 different NGK #s. Gap was set at .028"