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147 JTDm 8v Hybrid turbo upgrade

16857 Views 76 Replies 10 Participants Last post by  JS JTD
Well after playing with most things on my car ive decided to upgrade the turbo, i was happy with the remap but as always you need a little more :) and before you say it yes id have been better off starting with a 16v 150bhp rather then the 8v but when i brought this car i had no real intention of doing anything other than wheels and some lowering springs but thx to this forum i now cant help myself...:cry:

So a few options came up, the choice i was going to go with was a plug and play gt2256v kit from JS JTD, but have decided to go with a 1756 hybrid less one off parts etc , the goal from this is the magic 200bhp which i should quite easily obtain, any more than this and i'll need to start looking at a bigger intercooler , better clutch etc so im trying not to go to far.

Here she is, a stage 2 hybrid from Adam Davidson at tdi turbos ,this wont go on unitll i have one final part a decat down pipe from JS tuning then it will get fitted and off to reddot for a remap
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Not to thread steal or anything, but is there a major plus for the JTDM 8v versus the old jtd 8v?
As in, able to archieve greater numbers?

Will be watching your build! got a jtd 8v (unijet) myself, currently sitting at 165hp/330nm torque with a euro 4 jtdm 16v turbo, fmic, 3 bar map, downpipe and cat replacement pipe. that's with 2550mbar of boost and 77mg/inj. For now enough, but i want to be looking towards 180-185hp somewhere. But i'm affraid that wont be possible without another turbo.
 

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No, they don't, as 16V injectors are mounted under different angle.

You should get nearly to these HP figures and 360Nm with that turbo.
Tuner tried injecting more fuel, but that didn't result in more hp. And i read that 2550mbar is ok, but going more like 2600mbar and above is pretty risky with these turbo's.

Other then the downpipe & cat replacement pipe everything is still stock. Getting a free flow exhaust system, with perhaps slightly bigger diameter might yield a few more horses but other then that i have no idea how to up it more.

Time Engine speed Total fuel quantity Intake air quantity Boost pressure
sec rpm mg/i mg/i mBar
0 1295 25,7 596,6 1188
0,92 1336 46,64 683,2 1344
1,8 1430 48,41 720,6 1465
2,66 1493 50,81 824,6 1618
3,51 1621 60,84 934,8 1854
4,39 1734 67,75 1116,2 2189
5,27 1891 70,53 1256,9 2463
6,17 2050 72,85 1343,1 2606
7,02 2220 73,98 1280,4 2482
7,88 2381 75,39 1259,4 2405
8,74 2543 76,74 1345,2 2517
9,62 2704 78,73 1421,5 2651
10,47 2872 79,2 1388,6 2616
11,37 3035 79,45 1335,2 2542
12,24 3198 79,49 1330,5 2555
13,11 3351 79,37 1316,6 2574
13,96 3487 79,42 1307,4 2574
14,83 3623 79,2 1300,9 2571
15,7 3742 79,11 1284,2 2571
16,55 3855 78,74 1268,7 2565
17,43 3978 77,99 1258,4 2561
18,31 4084 77,83 1258,4 2577
19,18 4196 77,37 1258,4 2597
20,04 4296 75,9 1258,4 2590
20,89 4378 73,82 1258,4 2574
21,75 4462 72,01 1258,4 2536
22,62 4530 68,88 1258,4 2469
23,49 4608 65,22 1258,4 2383
24,36 4666 61,58 1258,4 2306
 
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