100-200kmh and 60-130mph modified vtg
#31
04-03-2016, 01:42 PM
22°C AT, you will gain a few tens in winter.
#32
05-06-2016, 06:56 AM
The measured time is between 96 km/h and 310 km/h, so it is a very safe bet that 100-300 km/h is below 20 seconds now.
BTW: this is starting in 4th gear and no money shifting.
#33
05-06-2016, 07:47 AM
Times
Hey just reading this post. Hard to make sense of a lot of these times. Hopefully this helps you.
I run a tiptronic turbo 997.1 Catless 3" straight pipes, EVOMS EVT775 tune and coils etc. 65mm turbos and run the Alpha coolers and piping. IDP plenum and larger throttle, basically the works. Have regularly run the car at the strip and on the vBox. On a flat surface quarter mile at the strip (not down a hill) the thing ran 10.6@130mph. 1.5 0-60ft time. When it does that it runs a 2.7s 0-60 time and a 7.9s 60-130. 7.9s.
Car has 750hp at the crank on a Maha dyno. Weighed 1580kgs with a quarter tank of gas this week at the strip. Stock wheels. Toyo r888 tyres.
I run a tiptronic turbo 997.1 Catless 3" straight pipes, EVOMS EVT775 tune and coils etc. 65mm turbos and run the Alpha coolers and piping. IDP plenum and larger throttle, basically the works. Have regularly run the car at the strip and on the vBox. On a flat surface quarter mile at the strip (not down a hill) the thing ran 10.6@130mph. 1.5 0-60ft time. When it does that it runs a 2.7s 0-60 time and a 7.9s 60-130. 7.9s.
Car has 750hp at the crank on a Maha dyno. Weighed 1580kgs with a quarter tank of gas this week at the strip. Stock wheels. Toyo r888 tyres.
#35
09-20-2016, 01:46 AM
This is a single pull in 4th gear, 997.1 6 speed. 100-200 kmh in 4.8 seconds. 60-130 mph in 5.6 seconds. Not too bad for VTG turbos...
The 997.1 Tiptronic cab will be updated in a few weeks as well and there will be updated 100-300 times for you UK guys
#36
09-20-2016, 03:44 PM
Amazing performance figures you are getting my friend. I'm nowhere nr you with GT2 hybrids and mafless proto tune even on MS109. What have you adjusted to get such quick times as like me you were previously struggling to run more than 1.3 bar of boost? I'm still stuck at 1.3 bar otherwise i get timing pulled if I run any more boost! I wonder if this is because I have a larger compresser wheel. 62mm wheels if you measure it normally but 66mm if you measure the compressor wheel like guys are measuring their 68mm VTG wheels. Really keen to over come the barrier. Only options my tuner is giving are meth and E85 and I'm reluctant to use this in the car as want to just fill up at pump and not mess around with trying to get hold of E85 (very expensive here in UK) or fiddle around with meth etc
this a 997.1 with GT2 VTGs and 48.5 mm compressor wheel (we measure the intake side here). Built engine, so I can run some torque down below, but that doesn't explain the difference to yours. Running 102 octane Aral pump fuel, but 98 should do fine as well.
Many things have changed since when I first replied here. This project is not yet finished. Very complex, very time consuming.
A 600 hp 997.1 tiptronic with OEM VTGs and just exhaust and GT2RS ICs is 0.5 seconds quicker than yours in a 100-200 run. Your car maybe has a problem. Did you ever log a run?
#37
09-21-2016, 01:31 AM
GT996'S times are really impressive for vtgs, I even would say exceptionnal, congrats.
I tried the Aral 102 in my tuned 993TT a few years ago and I believe it is one part of the key (GT996's stuff is very efficient out of it of course).
With the Aral 102 you can run 3 to 4° angle more with the same boost or raise 0.2bar with the same angle vs the french 98 pumpgas.
I ran the same setup as IMI (and same tuner) with 98pump a few years ago but checked times on nice roads/tracks vs the Bruntinthorpe surface, 100-200 and 300 were a bit better. (but still behind GT996's)
I tried the Aral 102 in my tuned 993TT a few years ago and I believe it is one part of the key (GT996's stuff is very efficient out of it of course).
With the Aral 102 you can run 3 to 4° angle more with the same boost or raise 0.2bar with the same angle vs the french 98 pumpgas.
I ran the same setup as IMI (and same tuner) with 98pump a few years ago but checked times on nice roads/tracks vs the Bruntinthorpe surface, 100-200 and 300 were a bit better. (but still behind GT996's)
#38
09-21-2016, 01:41 AM
In the wet we are running 3.4 secs to 60mph and 7.1 secs to 100mph onto 186mph in 28 secs so cars are running within 9e spec. Its your 100-200kph and 60-130mph where we struggle to match you.
We can match your 100-200kph and 60-130mph times with 1.5 bar of boost but then suffer retardation on 0-186mph. Here in lies our problem
We can match your 100-200kph and 60-130mph times with 1.5 bar of boost but then suffer retardation on 0-186mph. Here in lies our problem
I bet you see ignition retard but never any signs of knocking, right? No knock counters going up, no audible knocking.
What's your 100-250 time? Mine is 10.05 with a pretty slow shifing time. I don't have 100-300 times yet, because traffic was in the way, but 100-275 is 14.3 seconds using a 4-5-6 gear sequence. Again, shifting was lazy. Always around 0.8 seconds. I was not hunting times, but collecting logging data.
#39
09-21-2016, 03:58 AM
What's your 100-250 time? Mine is 10.05 with a pretty slow shifing time. I don't have 100-300 times yet, because traffic was in the way, but 100-275 is 14.3 seconds using a 4-5-6 gear sequence. Again, shifting was lazy. Always around 0.8 seconds. I was not hunting times, but collecting logging data.
I was running repeatable 9,5' with the Xona's and 98 pumpgas at 1.2Bar with estimated 750hp/950Nm but my 100-200 was only repeatable 5.2'.
(vtg's low end torque is probably better than mine)
#41
09-24-2016, 04:51 AM
You should maybe pop down to Terminal Velocity tomorrow at RAF Woodbridge and see how you go against other tuned turbos. There will be a few 9e 28s there 
http://www.terminalvelocityuk.co.uk
http://www.terminalvelocityuk.co.uk
#42
09-24-2016, 04:57 AM
You should maybe pop down to Terminal Velocity tomorrow at RAF Woodbridge and see how you go against other tuned turbos. There will be a few 9e 28s there
http://www.terminalvelocityuk.co.uk
http://www.terminalvelocityuk.co.uk
BTW: down to 4.7 flat on a 100-200 kmh run in 4th gear on a slight incline. There are still some problems left to be solved.
#44
09-24-2016, 05:06 AM
Correct. A conservative 600 hp tune on a 997.1 tiptronic shows 6.4/6.5 here and 6.3 as a quickest run, so you are not that far away from that point.
#45
09-24-2016, 05:48 AM
Rick