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How much boost pressure can a 1990 Vw jetta diesel take
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Topic: How much boost pressure can a 1990 Vw jetta diesel take (Read 3741 times)
November 04, 2015, 08:26:15 am
BradGarr
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How much boost pressure can a 1990 Vw jetta diesel take
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on:
November 04, 2015, 08:26:15 am »
Hello, I have a 1990 vw jetta diesel with no turbo on it I was thinking of putting one on I already found all the items I need I just don't want to blow my motor since I'm putting this kind of money in it. So how much psi can this engine take, 4 cylinder 8v 1.6L diesel
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Reply #1
November 04, 2015, 10:17:11 am
theman53
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Holmes County Ohio - North Central Ohio
Re: How much boost pressure can a 1990 Vw jetta diesel take
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Reply #1 on:
November 04, 2015, 10:17:11 am »
20psi keep the egt below 1300f for decent life
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Reply #2
November 04, 2015, 11:46:09 am
Dakotakid
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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November 04, 2015, 11:46:09 am »
Why don't you develop an interest in porting the head prior to talking boost?
You new guys are always trying to run a marathon on crutches.
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The mask and the shot(s) are actually an IQ test. If you are wearing or circulating, you just failed the test. I can't feel sorry for you.
Reply #3
November 04, 2015, 07:19:38 pm
libbydiesel
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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Reply #3 on:
November 04, 2015, 07:19:38 pm »
If you think about it a little the answer is quite obvious. It's a darn sight less work and expense to install a manual boost controller and adjust the boost than it is to pull the head, disassemble it, port it, reassemble it, and reinstall it. 1/2 hour and $15 vs. 2 days and $100. There are also a slew of special tools needed for doing the head and a serious risk of screwing it up and being out a whole lot of money and time.
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Last Edit: November 04, 2015, 07:21:48 pm by libbydiesel
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Reply #4
November 07, 2015, 10:15:20 pm
vanbcguy
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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Reply #4 on:
November 07, 2015, 10:15:20 pm »
There isn't a set amount of boost pressure that is safe. It has much more to do with the type of intercooler you are using (I hope you aren't trying to put 15+ PSI in to the engine without one) and which turbo you are using.
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Bryn
1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen
Reply #5
November 08, 2015, 04:38:07 pm
One_punchmachinegun
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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Reply #5 on:
November 08, 2015, 04:38:07 pm »
Funny thing is that I ran 21pounds in my 1Z swap no intercooler before I sold it. Nothing above 1600f@wot
Daily somewhere near 1200
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Reply #6
November 08, 2015, 04:41:17 pm
One_punchmachinegun
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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November 08, 2015, 04:41:17 pm »
But was not the stock turbo, it was a K24
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“If anyone hears my words but does not keep them, I do not judge that person. For I did not come to judge the world, but to save the world." Jesus Christ
Reply #7
November 09, 2015, 11:59:09 pm
Dakotakid
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Re: How much boost pressure can a 1990 Vw jetta diesel take
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Reply #7 on:
November 09, 2015, 11:59:09 pm »
Well, that was what I was alluding to earlier. Turboing the bananas out of a tired engine is not the hot ticket. His original thought was that he did not want to injure the engine......probably a fairly clapped-out one at that. Because, along with boost, generally comes a desired increase in fuel.....and more heat and pressure......on worn rings in a worn bore with an old head gasket and stem seals.
I mean, spending time in the theoretical world is obviously nice for some folks........................I generally deal with reality.
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The mask and the shot(s) are actually an IQ test. If you are wearing or circulating, you just failed the test. I can't feel sorry for you.
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VWDiesel.net The IDI, TDI, and mTDI source.
»
Engine Specific Info and Questions
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IDI Engine
(Moderators:
malone
,
burn_your_money
,
Vincent Waldon
,
theman53
) »
How much boost pressure can a 1990 Vw jetta diesel take