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TD vs NA crank?
by
MaxHedrm
on 02 Feb, 2008 16:01
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I'm considering a TD block & head listed over in the classifieds, but have a question...
Is the TD crank the same as the NA crank? I know where I can get new pistons for it, but have no idea on the crank, so I am wondering if reusing mine would be doable.
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#1
by
MJF
on 02 Feb, 2008 16:22
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It is same.
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#2
by
CoolAirVw
on 02 Feb, 2008 17:33
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Below is cut and pasted from the white paper, cut from the section specifically for turbo diesels. I seem to remember something about Ion-nitriding also?
??
A number of changes were made to the crankshaft. The front end of the crankshaft was reinforced. The highly loaded crank-pin, at cylinder 4, has its radius induction hardened and the oil hole ground while radii at the other pins are roll-hardened.
But.... the non-turbo crank will fit. The question is will it last as well?
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#3
by
RabbitJockey
on 02 Feb, 2008 17:49
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my money is on it lasting just fine
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#4
by
jtanguay
on 02 Feb, 2008 18:52
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i'm suspecting that if its a hydraulic engine that it MIGHT have the turbo spec crankshaft. they really over-engineered the crankshaft for the turbo. it can withstand more than double, or even triple (as MJF has produced 200+ hp :shock: with one)
you're not looking for 160 hp are you? :lol: should be fine. just get the crank polished before you re-install it :wink:
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#5
by
935racer
on 02 Feb, 2008 20:02
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i'm suspecting that if its a hydraulic engine that it MIGHT have the turbo spec crankshaft. they really over-engineered the crankshaft for the turbo. it can withstand more than double, or even triple (as MJF has produced 200+ hp :shock: with one)
you're not looking for 160 hp are you? :lol: should be fine. just get the crank polished before you re-install it :wink:
Yeah my 1.6 dynod 193.5whp with the td crank today, should have made more but my wastegate was opening too much, should have a 200+ dyno next week.
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#6
by
jtanguay
on 02 Feb, 2008 20:11
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i'm suspecting that if its a hydraulic engine that it MIGHT have the turbo spec crankshaft. they really over-engineered the crankshaft for the turbo. it can withstand more than double, or even triple (as MJF has produced 200+ hp :shock: with one)
you're not looking for 160 hp are you? :lol: should be fine. just get the crank polished before you re-install it :wink:
Yeah my 1.6 dynod 193.5whp with the td crank today, should have made more but my wastegate was opening too much, should have a 200+ dyno next week.
on a 1.6??? SWEET!!!! would be cool if you sold a whole 1.6 stage 5 kit including Giles pump... 200 whp :evil: (including your ported head, manifolds, dp, and anything else one might need...? i would almost like to try that on a bone stock 1.6TD (except maybe with the ported head) to see how long it lasted :lol:
if a 1.6TD rated at around 68hp can make 200 hp, then a TDI rated at 90 using the same ratio be able to make around 260 hp, but the torque would be insane! :twisted:
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#7
by
935racer
on 02 Feb, 2008 20:18
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Yeah on my 1.6/1.9 head combo, I've been driving it hard for the last month or so, no issue, runs great. I am a bit disapointed to be honest, the only time I had this wastegate issue was on the dyno today, I hit 28-29 psi when my wastegate open and a second later it drops down to 22 psi, tried it on the road after the dyno run and no problem holding 28 psi all the way to 180km/h in 4th gear with the current 4s tranny (5800rpm).
For some reason I clicked time on the printout instead of rpm for the bottom of the graph, I'll fix that on monday back at the shop, did I mention the new shop has a dyno
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#8
by
jtanguay
on 02 Feb, 2008 20:20
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how are you controlling the wastegate? is it just disconnected or are you running a controller?
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#9
by
935racer
on 02 Feb, 2008 20:22
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You can see where my torque and HP are doing great and are fairly flat and than they drop quite a bit, that is when my boost dropped big time from my wastegate issue, where it completely stops is when I let off the throttle at 6k rpm
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#10
by
935racer
on 02 Feb, 2008 20:23
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I am using a manual boost controller, I am going to get a good electronic boost controller like an apexi and do a few other things and try for 210 on this setup, after that its time for new manifolds, different turbo, bigger pump and 240whp :twisted:
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#11
by
MJF
on 03 Feb, 2008 00:43
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i'm suspecting that if its a hydraulic engine that it MIGHT have the turbo spec crankshaft. they really over-engineered the crankshaft for the turbo. it can withstand more than double, or even triple (as MJF has produced 200+ hp :shock: with one)
Actually there is early 1.6NA crank in my engine
I like the old style crank front end better...
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#12
by
MaxHedrm
on 03 Feb, 2008 11:19
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Actually there is early 1.6NA crank in my engine I like the old style crank front end better...
So since I'm not planning to go anywhere near 200hp, I should have nothing to worry about. Good to know.
