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My RR Result with a Garrett GT2871R .64
#1591178
03/01/2017 11:23
03/01/2017 11:23
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Joined: Aug 2006
Posts: 1,904 Poland
deannn_20VT
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My Spec: - ECUMASTER EMU stand alone + p&p harness from Walas Motorsport - Forged engine with ZRP rods and Wossner pistons - Garrett GT2871R .64, 1.15b actuator with ported internal WG + bigger flapper - 630cc Bosch injectors - 255lph Deatschwerks DW200 fuel pump - 3.8b Bosch FPR - LSU 4.2 Bosch wideband - EGT sensor - colder spark plugs - 3" ID exhaust system from turbo with two silencers - 3" SIP + Apexi Cone filter - 450x230mm FMIC - Bigger oil cooler - No MAF - Sachs Racing 4-puk clutch disc - Deltaparts pressure plate - Flat shift - Launch control - many safety features Result: 350bhp & 350lbft BTW - GT2871R with small housing is prone to huge boost spikes and running much higher EGT temps than a .86 housing. I will be changing to a bigger housing in the future.
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Re: My RR Result with a Garrett GT2817R .64
[Re: deannn_20VT]
#1591279
05/01/2017 08:45
05/01/2017 08:45
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Julien
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Julien
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Peak was 1.7b but just for a moment, steady 1.6 tailing off to 1.4 - 1.3b. Yes, standard compressor. Results is quite good but I think you have some kind of restriction somewhere : you should be around 380hp instead of 350...which turbo flange do you use ? Although, your intercooler seems too small (I think it's 230mm high and 76mm thick with 57-60mm ID at inlet/outlet isn't it ? -> that may explain your torque falling with rpm rising) When you speak about high EGT, what do you mean ? EDIT : going with 0.86 AR will give you much lag, unless you only do drag strip, you shouldn't do this mod.
Last edited by Julien; 05/01/2017 08:49.
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Re: My RR Result with a Garrett GT2817R .64
[Re: ]
#1591280
05/01/2017 09:34
05/01/2017 09:34
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Joined: Aug 2006
Posts: 1,904 Poland
deannn_20VT
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Peak was 1.7b but just for a moment, steady 1.6 tailing off to 1.4 - 1.3b. Yes, standard compressor. Results is quite good but I think you have some kind of restriction somewhere : you should be around 380hp instead of 350...which turbo flange do you use ? Although, your intercooler seems too small (I think it's 230mm high and 76mm thick with 57-60mm ID at inlet/outlet isn't it ? -> that may explain your torque falling with rpm rising) When you speak about high EGT, what do you mean ? EDIT : going with 0.86 AR will give you much lag, unless you only do drag strip, you shouldn't do this mod. This is about max what you can get from this turbo and 98RON fuel. 380bhp or 400bhp would be possible if I used 100+ octane fuel which I am not going to do as it is not widely available in Poland. What do you mean by turbo flange? It is Standard T25 with 5-bolt exit. The IC is just enough, but I might be changing it to TRE Performance in the near future to consistently keep IAT low. I meant that my EGT occasionally can reach 800-850*C. But then again the ECU's safety features will kick in. No, .86 will not give much more lag as it has been proved by the very same tuner who mapped my Coupe. A friend of my had the same setup but ported manifold and made 331bhp. Then they changed turbo housing to .86 and he instantly made more power and torque, his EGTs have considerably dropped, and the increase in lag was minimal like 100-150rpm which is nothing...
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Re: My RR Result with a Garrett GT2817R .64
[Re: deannn_20VT]
#1591326
05/01/2017 21:25
05/01/2017 21:25
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Joined: Dec 2005
Posts: 17,367 Staffordshire
Nigel
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This is about max what you can get from this turbo
Depends on the supporting mods - I ran way over 400bhp with exactly the same turbo. 350bhp is well inside the capabilities What boost control are you using?
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Re: My RR Result with a Garrett GT2817R .64
[Re: deannn_20VT]
#1591341
05/01/2017 23:37
05/01/2017 23:37
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Joined: Feb 2007
Posts: 3,486 London Tan
technics
I need some sleep
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I need some sleep
Joined: Feb 2007
Posts: 3,486
London Tan
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GT28's are not that big 400 bhp max. GT30 would be more comfortable and lag wise there is nothing in it. GT30??'s are 400+ all day long.
Now in the 400+ bhp club!
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Re: My RR Result with a Garrett GT2817R .64
[Re: deannn_20VT]
#1591356
06/01/2017 09:14
06/01/2017 09:14
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Julien
Unregistered
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Julien
Unregistered
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Peak was 1.7b but just for a moment, steady 1.6 tailing off to 1.4 - 1.3b. Yes, standard compressor. Results is quite good but I think you have some kind of restriction somewhere : you should be around 380hp instead of 350...which turbo flange do you use ? Although, your intercooler seems too small (I think it's 230mm high and 76mm thick with 57-60mm ID at inlet/outlet isn't it ? -> that may explain your torque falling with rpm rising) When you speak about high EGT, what do you mean ? EDIT : going with 0.86 AR will give you much lag, unless you only do drag strip, you shouldn't do this mod. This is about max what you can get from this turbo and 98RON fuel. 380bhp or 400bhp would be possible if I used 100+ octane fuel which I am not going to do as it is not widely available in Poland. What do you mean by turbo flange? It is Standard T25 with 5-bolt exit. The IC is just enough, but I might be changing it to TRE Performance in the near future to consistently keep IAT low. I meant that my EGT occasionally can reach 800-850*C. But then again the ECU's safety features will kick in. No, .86 will not give much more lag as it has been proved by the very same tuner who mapped my Coupe. A friend of my had the same setup but ported manifold and made 331bhp. Then they changed turbo housing to .86 and he instantly made more power and torque, his EGTs have considerably dropped, and the increase in lag was minimal like 100-150rpm which is nothing... 800-850°C ?... I often see 950°C+ on my 16VT and no problem. I'm a little surprised because 330-350hp is what we get with GT28RS and AR.64 at 1.5bar on 20VT and 2871R is a much bigger wheel. GT28's are not that big 400 bhp max. GT30 would be more comfortable and lag wise there is nothing in it. GT30??'s are 400+ all day long. There are 500hp+ coupe running with gt2871R + e85 in France so even with RON98, I guess you can get 450hp at least.
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Re: My RR Result with a Garrett GT2817R .64
[Re: ]
#1591404
06/01/2017 16:10
06/01/2017 16:10
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Joined: Dec 2005
Posts: 1,670 SW London
Rudidudi
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GT28's are not that big 400 bhp max. GT30 would be more comfortable and lag wise there is nothing in it. GT30??'s are 400+ all day long. There are 500hp+ coupe running with gt2871R + e85 in France so even with RON98, I guess you can get 450hp at least. The GT2871r are rated to 400 bhp, so how do you see more than that on a coupe? Garrett GT2871r spec
Last edited by Rudidudi; 06/01/2017 16:11.
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Re: My RR Result with a Garrett GT2817R .64
[Re: Rudidudi]
#1591409
06/01/2017 17:29
06/01/2017 17:29
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Joined: Dec 2005
Posts: 17,367 Staffordshire
Nigel
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The GT2871r are rated to 400 bhp, so how do you see more than that on a coupe? You improve several other aspects of the system - I run a bigger intake, big exhaust, worked head, high lift cams etc - the result was The quote on the TD specs is just an estimate - it can't be accurate because it cannot know what its bolted to....
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Re: My RR Result with a Garrett GT2817R .64
[Re: deannn_20VT]
#1591454
06/01/2017 23:02
06/01/2017 23:02
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Joined: Feb 2007
Posts: 3,486 London Tan
technics
I need some sleep
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I need some sleep
Joined: Feb 2007
Posts: 3,486
London Tan
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They will only ever flow so much though......
Dont really want to go down this avenue, but all dynos vary.
Find me another/any other car with a gt28?? making 460bhp
Now in the 400+ bhp club!
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591471
07/01/2017 10:05
07/01/2017 10:05
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Joined: Aug 2006
Posts: 1,904 Poland
deannn_20VT
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Maurizio, we can go down this avenue together. Guys, I don't think that you are realistic saying that you can get 400+ from a gt2871r on 98RON or even RON100 fuel.. If you look at the compressor wheel map you will understand that 450bhp is not what you can get out of a gt2871r .64 on our engines. I will give you another example - same setup as my plus fully rebuilt engine and: fully worked head + meth injection + cnc wheel upgrade + 100RON fuel + octane booster + .86 hot side = 405bhp. So, similar setup as your Nigel minus high lift cams. Did you run RON103 to make that power? Did you have meth injection? Did you have the internal wg ported? Yes, 400+ with e85 is possible though. If you think you got 350bhp out of gt28rs or 450bhp out of gt2871r then let's record and share 100-200km/h runs.
Last edited by deannn_20VT; 07/01/2017 10:08.
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591492
07/01/2017 17:58
07/01/2017 17:58
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Joined: Dec 2005
Posts: 17,367 Staffordshire
Nigel
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So, similar setup as your Nigel minus high lift cams. Did you run RON103 to make that power? Did you have meth injection? Did you have the internal wg ported?
- Yes, wastegate was ported to handle the high boost I was running (up to 2 bar....). That said, I know the dyno used is sometimes flattering and the 457bhp figure is optimistic. However, I doubt that its 57bhp optimistic... If you think you got 350bhp out of gt28rs or 450bhp out of gt2871r then let's record and share 100-200km/h runs. I don't have the GT2871R any more (it died after 150,000 miles). However, I ran a best quarter mile time of 12.38 with it fitted, with a terminal of just under 115.59mph (186km/h). Lifting the 1/8 mile figures from the timing slip showed that I did 91mph / 147km/h to 115mph / 186km/h in 4.28 seconds - you may be able to extrapolate a 100-200km/h time from that
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591500
07/01/2017 19:49
07/01/2017 19:49
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Joined: Aug 2006
Posts: 1,904 Poland
deannn_20VT
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Well then Nigel, I assume your 100-200km/h would probably be just under 10s, right? See how this 340bhp 20vt Coupe goes. It belongs to my friend and it was tuned by the same company who tuned my 20vt: https://m.youtube.com/watch?v=Km4Bt0OvE3gDo you still believe you had anywhere near 457bhp with the gt2871r?
Last edited by deannn_20VT; 07/01/2017 19:52.
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591505
07/01/2017 22:41
07/01/2017 22:41
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Joined: Dec 2005
Posts: 17,367 Staffordshire
Nigel
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Well then Nigel, I assume your 100-200km/h would probably be just under 10s, right?
No - I think it would be less I've done zero to 200km/h in about 13.5 seconds - at Ten of the Best I did a "granny start" for the top speed run and managed to do a 13.5 quarter mile with a 121mph terminal. Seeing as my 0-60 time is about 5 to 5.5 seconds, I estimate my 60-120 time at about 8.0 to 8.5 seconds
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591540
08/01/2017 18:20
08/01/2017 18:20
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Julien
Unregistered
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Julien
Unregistered
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Maurizio, we can go down this avenue together. Guys, I don't think that you are realistic saying that you can get 400+ from a gt2871r on 98RON or even RON100 fuel.. If you look at the compressor wheel map you will understand that 450bhp is not what you can get out of a gt2871r .64 on our engines. I will give you another example - same setup as my plus fully rebuilt engine and: fully worked head + meth injection + cnc wheel upgrade + 100RON fuel + octane booster + .86 hot side = 405bhp. So, similar setup as your Nigel minus high lift cams. Did you run RON103 to make that power? Did you have meth injection? Did you have the internal wg ported? Yes, 400+ with e85 is possible though. If you think you got 350bhp out of gt28rs or 450bhp out of gt2871r then let's record and share 100-200km/h runs. This is a friend of mine with gt2871R AR .64 20VT, around 1.8bar, external wastegate on stock exhaust manifold, E85, no head porting and original camshafts : https://www.youtube.com/watch?v=D7FHDg4WM9cHe went on the dyno 2-3weeks after : 500hp+ at 1.9 bar I guess his 100-200 is less than 8's
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591546
08/01/2017 19:32
08/01/2017 19:32
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Julien
Unregistered
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Julien
Unregistered
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Julien, let's compare apples to apples. E85 is a bit different than RON98 Yes you're right it's different. Anyway this coupe before was running on RON98 at 1.7 bar (ext wg also) and passed M5 V10 (500hp+). GT2871 is a big compressor turbo (especially with 56trim) so with right exhaust flowing, you can see very good power
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591558
08/01/2017 22:40
08/01/2017 22:40
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Joined: Feb 2007
Posts: 3,486 London Tan
technics
I need some sleep
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I need some sleep
Joined: Feb 2007
Posts: 3,486
London Tan
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Yes E85 is not comparable to what we are discussing....but still interesting to hear.
To be fair a V10 M5 is nearly 2 tons. You would pass one with 400bhp.
Now in the 400+ bhp club!
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591589
09/01/2017 11:21
09/01/2017 11:21
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Joined: Feb 2006
Posts: 5,390 Essex
Trappy
Forum is my life
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Forum is my life
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Essex
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Well then Nigel, I assume your 100-200km/h would probably be just under 10s, right? See how this 340bhp 20vt Coupe goes. It belongs to my friend and it was tuned by the same company who tuned my 20vt: https://m.youtube.com/watch?v=Km4Bt0OvE3gDo you still believe you had anywhere near 457bhp with the gt2871r? I too thought the power output for this GT2871R 0.64 was a little low at 350bhp so I’ve been keeping an eye on this thread. Having now seen the 10.4 100-200kph time, I’m going to pipe up! Mine put out 420bhp on the same dyno that Nigel’s made 457bhp. A few years ago mine made 342bhp on this same dyno while running a GT28RS 0.64. It also went on a local dyno with the same spec and made 315bhp. Nobody knows which is correct or closer to the truth but having them all run on the same dyno is useful for comparative reasons so I like having both results so I can compare my set up with people’s cars that have been on either of these dynos. Although mine hasn’t been on the lower reading dyno with the current 420bhp spec, I estimate it would make just under 390bhp (I really should do this). Nigel’s 457bhp would be in the region of 425bhp I expect. Now, I have my own Performance Box so I strapped it in and went out in mine last night to attempt a quick 100-200 test. Unfortunately, the misfire that was fixed the day before has returned and so I couldn’t get a reading… Using my performance calculator to work out how quick the 342bhp dyno result would be from 100-200kph, I get 10.68 seconds. This is perfectly in-line with your pal’s 340bhp 10.4s. For the record, my estimate for my car based on my calculator is 9.28 seconds. I’ll report back when I have the answer. I’d also estimate that Nigel would be 8 seconds dead based on a lower 425bhp peak power.
F****** b****** thing...
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Re: My RR Result with a Garrett GT2871R .64
[Re: Nigel]
#1591590
09/01/2017 11:23
09/01/2017 11:23
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Joined: Feb 2006
Posts: 5,390 Essex
Trappy
Forum is my life
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Forum is my life
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Essex
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I don't have the GT2871R any more (it died after 150,000 miles). However, I ran a best quarter mile time of 12.38 with it fitted, with a terminal of just under 115.59mph (186km/h).
Lifting the 1/8 mile figures from the timing slip showed that I did 91mph / 147km/h to 115mph / 186km/h in 4.28 seconds - you may be able to extrapolate a 100-200km/h time from that Nigel, do you have all of the results from that timing slip by any chance?
F****** b****** thing...
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591768
11/01/2017 05:45
11/01/2017 05:45
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Joined: Dec 2011
Posts: 49 spain
patadaturbo
Discoverer
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Discoverer
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spain
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Good results. But you did not have a GT28RS?
Does that turbo have much lag compared to the other one you had?
Last edited by patadaturbo; 11/01/2017 07:05.
20vt forever
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Re: My RR Result with a Garrett GT2871R .64
[Re: patadaturbo]
#1591902
12/01/2017 17:06
12/01/2017 17:06
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Joined: Aug 2006
Posts: 1,904 Poland
deannn_20VT
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Good results. But you did not have a GT28RS?
Does that turbo have much lag compared to the other one you had? I had GT28RS just before the engine went pop. Not much more lag at all. Actually, feels like there is no difference in spool. I will record and let you know when I reach the boost threshold next time I drive the car.
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1591919
12/01/2017 22:50
12/01/2017 22:50
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Joined: Dec 2011
Posts: 49 spain
patadaturbo
Discoverer
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spain
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Yes, I'm interested in seeing it.
20vt forever
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Re: My RR Result with a Garrett GT2871R .64
[Re: deannn_20VT]
#1592164
17/01/2017 11:35
17/01/2017 11:35
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Joined: Feb 2006
Posts: 5,390 Essex
Trappy
Forum is my life
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Forum is my life
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Posts: 5,390
Essex
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Well then Nigel, I assume your 100-200km/h would probably be just under 10s, right? See how this 340bhp 20vt Coupe goes. It belongs to my friend and it was tuned by the same company who tuned my 20vt: https://m.youtube.com/watch?v=Km4Bt0OvE3gDo you still believe you had anywhere near 457bhp with the gt2871r? I was able to get the car out with the Performance Box last night. Here are the results for both the 100-200kph (9.9s) and also the 91-115mph (4.3s) that Nigel mentioned. I started in third gear the same as your pal in the video above for consistency. I mention this as my car has been mapped for mechanical sympathy as it’s still running standard rods and bolts. This means that the torque has been reined in, peaking at only 328lbs/ft. On the road, this leads to a very progressive delivery and so roll from 100kph / 60mph is best described as ‘leisurely’ at the start. When it gets moving though it really goes I certainly would not expect the same from Nigel’s car as he not only ran it at full torque but he’s also has a fair amount of headwork completed. I should also state that I'm not using a GT2871r. Instead it's one of Flea's own creations and is very similar to his Sabre450R. How this compares to a 2871R I'm not entirely sure but it appears to be quite similar from what I can tell... I hope all this helps
F****** b****** thing...
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