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feeler; thoughts on a G60 supercharger on TD engine ?
by
blkboostedtruck
on 22 May, 2007 01:30
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does anyone know or heard of someone trying a G60 supercharger on a turbo diesel motor in place of the turbo ? or with even in conjuction with the turbo? i think it sounds like kinda of a wild project! i would like to hear some input and opinion from others about it? thanks Duane
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#1
by
lord_verminaard
on 22 May, 2007 10:04
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G60's make good boost and are fairly efficient, but they are too fragile unless you really drop the cash to get them rebuilt correctly, and for what that costs, you could have 4 turbos. Not worth it.
Brendan
84 Scirocco 8v
81 Scirocco 'S 3A & 4k
01 Jeep TJ 4.0
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#2
by
blkboostedtruck
on 22 May, 2007 12:09
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but if that all said and done money droped in rebuild ! i'm curious about low end torque ? the air that it gets at lower rpm and would the LDA respond to the low boost signal from the supercharger? Duane
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#3
by
BlackTieTD
on 23 May, 2007 17:12
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yes. do it. depending on the vehicle and the distance to the rad/rad support, the alternator could be moved down underneith the charger with the charger in the typical G60 location. brackets and proper alignment seems to be the main issue with something like this. the boost response especially down low with a healthy, ported, small pulley (but not ridiculous) G60 is certainly worth the effort to make it happen in my opinion. i'd really appreciate something like this but many people stay away from this supercharger and there is a fair bit to be said about a turbocharger on a diesel. none-the-less i've always loved this idea.
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#4
by
blkboostedtruck
on 24 May, 2007 01:05
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the vehicle is a caddy ! i know the corrado 1.8 G60 motor will fit in a pickup because i have already installed one in one of my pickups . i used the corrado radiator ,did a little trimming on the radiator core support and made it tuck underneath/inside the support. it makes the hood latch inoperable and had to go to hood pins .but between headlight to headlight is all radiator! looks impressive. the only thing that i hope works out is like you said is the brackets.but i'm curious why no auto manufacture has not produced this combonation ? i know i'm not the first one to think of this idea! i'm sure it must of been considered by some engenier at one time ? ya think? does anyone know the answer to this?and does anyone else have an opinion to this idea ? input would be great no matter witch way you think about this!
thanks Duane
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#5
by
BlackTieTD
on 24 May, 2007 09:22
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i believe the main point favouring turbos on diesel engines is that typically diesels are designed for economy. turbos basically scavenge exhaust gases that would otherwise be wasted, and use them to produce boost. a supercharger imposes a load on the engine which actually robs power and efficiency, but then makes up for the power lost, and then some. (turbos are also cheaper to manufacture, allowing production costs of otherwise identical turbo diesel vehicles to remain lower than if they featured superchargers)
it is possible to have a clutch pulley (like an AC compressor) on the supercharger pulley so that it doesn't impose a drag on the system when boost is not required (idle, low throttle position).
the important difference between diesel and the G60 setup as far as fitment and brackets is the lack of the injection pump on the G60 engine. you would have to put the charger in front of the IP, or below, and then you still need an alternator (i hope you're not partial to power steering or AC!) i'm sure it can be done but in a mkI it would likely be a challenging fit.
there are many ways to skin a cat, using the supercharger AND and turbo would be the way to go but obviously far more complex.
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#6
by
blkboostedtruck
on 24 May, 2007 11:59
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hey now you brought up a real brilliant idea with the clutch idea !! how about a throttle position switch where at idle the SC is off and when it starts to open the it turns on to say mid way or 3/4 throttle and switches back off or find the point where the turbo has taken over the boost i think that makes sence just to use the SC in low rpm and shuts off at high rpm allowing the SC not to take the brunt of the use less wear and tear on the SC.A/C and power steering is nice but not necessary for me! i have'nt hade a car with it yet .by the time i get a car or truck it is usally gone or i will remove it my self. it only gets real hot here in wisconsin for a couple of weeks a year .i just jump on the harley and head for the lake it's always cooler by lake michigan. you brout out some good points i appreciate all your insite! look forward for more ! thanks Duane
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#7
by
lord_verminaard
on 24 May, 2007 12:02
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there are many ways to skin a cat, using the supercharger AND and turbo would be the way to go but obviously far more complex.
Working on that.
Brendan
84 Scirocco 8v
81 Scirocco 'S w/ 3A and 4k
01 Jeep TJ 4.0
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#8
by
blkboostedtruck
on 24 May, 2007 12:38
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there are many ways to skin a cat, using the supercharger AND and turbo would be the way to go but obviously far more complex.
Working on that.
Brendan
84 Scirocco 8v
81 Scirocco 'S w/ 3A and 4k
01 Jeep TJ 4.0
have you forgoten Red Green's other Quote?
(if the women don;t find me handsom? atleast they will find me handy!!)
i'm sure it sounds crazy but i'm up for a good challenge ! Duane
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#9
by
BlackTieTD
on 24 May, 2007 15:11
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doesnt sound crazy to me.
do you have a thread or page going for that Brendan?
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#10
by
blkboostedtruck
on 24 May, 2007 21:54
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Brendan give me an engeniering prospective on convincing me why this wont work? besides money and practability! i've done everything else to a vw truck from 8v turbo w/N.O.S.-1.8G60 transplant-TD transplant and now i would like to attempt a supercharged/turbo diesel . thats whats got my intrest now.the diesel engine is uncharted and has not tottaly been exploited even though it's been around for so long thanks Duane
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#11
by
jtanguay
on 24 May, 2007 22:56
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money is the real issue... if you have time / money / patience... you can make this work.
one of the biggest issues is disabling the supercharger when the turbo kicks on...
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#12
by
g-spec
on 29 May, 2007 13:38
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The g60 charger isnt as unreliable as everyone says it is.....I have had one charger on 2 corrados for 5 years....if you take care of it and keep up on maintanence it will be fine. I also rebuilt it myself once, and it is not very difficult you just have to be gentle. With the charger running a small enuf pulley and the diesel's low rpm's you would be able to push about 22psi at 5000rpm. Unless you want to run more boost than that I dont see a need for a turbo. And about the g60 taking power from the engine.....on a stock g60 engine it uses 9hp to spin it at redline making 9-11psi. It is one of the most efficient chargers ever made. I like the idea though.....I think that a rabbit with a set-up like that would really haul a55.
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#13
by
RabbitGTDguy
on 29 May, 2007 21:36
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kudos on that. I'm a fan of the G60 charger as well. Its all about maintenence on them...as already mentioned. If you change its timing belt regularly, follow the procedures, etc...and have a decent core to work with as well they aren't hard to rebuild either.
I had one on a 91 'rado until I rebuilt the motor to stg 4 specs and ran a lysholm on the car...
Hmm...now that would be fun too... diesel knocking, fire engine roaring MK1 diesel rabbit...
Joe
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#14
by
blkboostedtruck
on 30 May, 2007 05:04
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i even balieve that putting the G60 on a diesel engine the supercharger will even last longer than being on a gas engine because of the lower RPM's that the diesel engine produces! so the longejevety seems to double in my opinion i think it will out perform a turbo! does anyone else agree with this ? thanks Duane
is there anyone else gong to be a pioneer and build one along with me?