The *official* 300 TDi Performance Thread - Page 4 - Defender Source
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  #61  
Old December 13th, 2008, 02:53 PM
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Could this work with a 200 tdi as well ?

Sorry, I know this is the 300 tdi thread but ...

Thanks

Pat
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  #62  
Old December 13th, 2008, 03:16 PM
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Quote:
Originally Posted by Buckon37s
Great pics. Thank you very much.

Have you driven it yet? Did you notice any difference in performance?
I drive it daily. Notice an increase in performance from what exactly?

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Quote:
Originally Posted by Retrofit
Could this work with a 200 tdi as well ?

Sorry, I know this is the 300 tdi thread but ...

Thanks

Pat
Pat it is possible, but does the 200 have an EGR?
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  #63  
Old December 13th, 2008, 04:18 PM
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Quote:
Originally Posted by crown14
I drive it daily. Notice an increase in performance from what exactly?
From before you did the mod.
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  #64  
Old December 13th, 2008, 08:59 PM
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No, installing an EGT does not increase performance buckon37s.
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  #65  
Old December 13th, 2008, 09:04 PM
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Quote:
Originally Posted by crown14
No, installing an EGT does not increase performance buckon37s.
Your kidding right? I'm talking about moving the boost guage.
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  #66  
Old December 13th, 2008, 10:04 PM
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A boost guage does not affect performance either.
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  #67  
Old December 13th, 2008, 11:17 PM
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Quote:
Originally Posted by crown14
A boost guage does not affect performance either.
Oh jeeze, wastegate signal, whatever. You know what I mean.
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  #68  
Old December 14th, 2008, 02:34 PM
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Quote:
Originally Posted by crown14
A boost guage does not affect performance either.
But it looks good
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  #69  
Old December 14th, 2008, 04:13 PM
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Moving the boost control and wastegate control doesn't give you a giant kick in the tail, but it does offer better drivability and perhaps quicker throttle response.
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  #70  
Old December 23rd, 2008, 10:15 AM
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Well cut the rather large Magnaflow muffler off Friday and went with straight pipe. Noticed EGT stays lower under load, and when it does climb, seems to cool quicker.
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  #71  
Old July 19th, 2009, 07:46 PM
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Quote:
Originally Posted by junkyddog11
I've been playing with running the boost signal to the IP from the turbo AND the intake which gives a nice "blend" of the instant effect at the turbo and the more accurate actual pressure from the manifold and the resulting quicker response. Gave a better "throttle" response and allowed a little more pre boost spring pressure (star wheel) so snappy response with less smoke.
I'm running the signal to the wastegate (and the boost gauge) from the manifold for accuracy where it may count.
I had tried a couple of different things and finally came upon the idea (not original obviously)of using the signal @ the turbo for the ip only and the intake manifold for the boost gauge and wastegate signal- Holy Crap !
I need to reduce smoke a bit but all of a sudden this thing fly's and temps are well in line-although they move faster. I have a lighter V8 110 pickup here and the Tdi wagon is quicker. Matt or Pendy tell me why I shouldn"t leave it this way ????
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  #72  
Old July 19th, 2009, 10:54 PM
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Hmmm!!!

Sound good Doug, I will give this a try in the next couple of days, can you confirm that this was on a 200tdi.

Thanks !

Pat
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  #73  
Old July 20th, 2009, 06:53 AM
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Quote:
Originally Posted by Maryland 110
I had tried a couple of different things and finally came upon the idea (not original obviously)of using the signal @ the turbo for the ip only and the intake manifold for the boost gauge and wastegate signal- Holy Crap !
I need to reduce smoke a bit but all of a sudden this thing fly's and temps are well in line-although they move faster. I have a lighter V8 110 pickup here and the Tdi wagon is quicker. Matt or Pendy tell me why I shouldn"t leave it this way ????
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That's the way to do it Dougo. I've never noticed the flying thing before, but this set-up does, I beleive, produce better signaling and better response. If you want to get down to the nano thinking, you'd also get some silicone tubing for these signal lines so as to reduce that micro expansion when you get the big turbo hit!.....plus it comes in cool colors (I actually use black so as to preserve that stealth look the SwampSlut is so well known for )
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  #74  
Old July 20th, 2009, 08:14 AM
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Doug, where are the pix???


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  #75  
Old July 20th, 2009, 09:30 AM
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Quote:
Originally Posted by Retrofit
Sound good Doug, I will give this a try in the next couple of days, can you confirm that this was on a 200tdi.

Thanks !

Pat
Yes Defender 200tdi

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Quote:
Originally Posted by TDI Guy
Doug, where are the pix???


LOL... Swamp Slut..
No pics of the flying 110 but this is a very simple modification. I finally feel like the full width intercooler and ip tweaks are all symbiotic.
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  #76  
Old August 10th, 2009, 06:08 PM
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FINALLY FINALLY got the 300tdi in my Disco back together and running after being down for 4 months. With the new (much) larger intercooler and the wastegate plumbed to the the turbo outlet instead of seeing the 15-16PSI that I was before, now I only see 11 at the most. I actually left it like this on purpose to be on the safe side for a few days but it was interesting to see the pressure drop across the new cooler.

Shouldnt really apply to D90s but if anyone happens to have a diesel D1 here are some more details- A couple other changes had to be made with the new intercooler, most notably the AC condenser was removed and the factory transmission cooler (truck is an automatic) was also deleted. I have installed an aftermarket trans cooler onto the front of the radiator and plumbed it in. Well, kinda. The AC will need some custom touches to be functional, so it will be heading to a local AC specialist over the winter some time to get that taken care of. I also am planning some custom sheetmetal work behind the grille and a little scoop action below the bumper to force more air into the intercooler but that is coming later. The factory intercooler was totally removed and as was the original fan shroud. May end up with an electric fan on the radiator, not sure yet but the truck runs nice and cool (does not overheat) in the summer heat with no shroud at the moment. All the turbo piping is new polished aluminum stuff with new silicone connectors. Unrelated, but I went ahead and replaced some coolant hoses too and installed the new expansion tank.

Its miserable outside at my place today but I might head out in a few and replumb the wastegate to the intake manifold and feel some power increase. Currently at about 10psi the truck feels just like before but with more smoke and a little quicker to a high EGT due to the same fuelling. I am expecting to have to make another fuel adjustment at 15psi even with the new intercooler but even without there should be a power difference I can feel.
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  #77  
Old August 10th, 2009, 10:06 PM
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I have a D1 with a 300tdi and would love to see some pics with a little explanation of some of what you did. I need more power for sure. I have thought about getting a larger intercooler but I have heard that many other things need to be done in conjunction to get any real increase in power.

"wastegate plumbed to the the turbo outlet instead of seeing the 15-16PSI that I was before, now I only see 11 at the most". For example I don't even know what this means?3
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  #78  
Old August 11th, 2009, 09:56 AM
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Quote:
Originally Posted by discotdi
I have a D1 with a 300tdi and would love to see some pics with a little explanation of some of what you did. I need more power for sure. I have thought about getting a larger intercooler but I have heard that many other things need to be done in conjunction to get any real increase in power.

"wastegate plumbed to the the turbo outlet instead of seeing the 15-16PSI that I was before, now I only see 11 at the most". For example I don't even know what this means?3
Well the new intercooler is more than twice the size of the old one, and the piping to and from it is about 150% longer than before, so there is more volume to be pressurized between the turbo and the engine. The wastegate actuator line connects to the turbo such that it may think the entire system is seeing 15psi in reality the pressure at the intake is only 10psi due to the larger intercooler etc. Plumbing the wastegate to the intake manifold will keep the wastegate from doing its thing until the pressure at the intake manifold actually reaches 15psi.

I will gladly try and get you some pics today
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  #79  
Old August 11th, 2009, 10:38 AM
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Pressure loss from the turbo to the intake will never be a large number. If it is, there is a serious design problem.
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  #80  
Old August 11th, 2009, 06:18 PM
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i need to adjust wastegate actuator rod as well
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