Time Attack ST170 Build - 17/05/11 - More Engine Loom & Dash Stuff
#763
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By fitting the turbo i'll be blowing pressurized air into the intake of the supercharger at again, say 10psi, but as the supercharger is repressurizing the air, it'll enter the engine at more like 26/27psi but will hopefully be at around the same inlet air temperature
In essence all i'm doing is presenting the supercharger with a lot more air!
#766
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I actually need to thank AustenW for lighting the fuse in me to do this... I'd always been told that the Powerworks charger wouldn't take boost being blown in to it, however, that was all hearsay and i think something of an urban myth as Austen did a lot of research on it and was told that they are safe to take boost!
I had thought about doing this 18months ago but knocked the idea on the head
#770
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It's a recent development
#772
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Jimbo, don't forget i'm physically sucking air through it, the supercharger is drawing through the turbocharger. The ported shroud will help with that... Also, i shouldn't run anywhere near surge with this setup as the turbo was chosen to be lazy
#775
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Yours for £900 + postage
In fact, buy it and i'll deliver it
#776
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Because you are compressing air that is already compressed it culminates as the square of the pressure ratios
I am running a cooler - its a chargecooler and is mounted inside the powerworks unit, hence the using a large turbo to move a lot of air at low boost so as not to superheat the air running 3 bar on a T3
I am running a cooler - its a chargecooler and is mounted inside the powerworks unit, hence the using a large turbo to move a lot of air at low boost so as not to superheat the air running 3 bar on a T3
#777
formerly beefy-rst-2
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oooh sounds stunning , take it there local to you mate ,
god i cant wait to get bk to work ,
ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,
what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?
that garrett manifold pattern too ?
beef
god i cant wait to get bk to work ,
ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,
what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?
that garrett manifold pattern too ?
beef
Last edited by -beefy-; 18-01-2010 at 11:09 PM.
#778
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oooh sounds stunning , take it there local to you mate ,
god i cant wait to get bk to work ,
ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,
what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?
that garrett manifold pattern too ?
beef
god i cant wait to get bk to work ,
ohh and im after 500 lol ,so will that be 1,5 bar pmsl ,
what the scoop with ex side , external gate or they to a internal gated version they do option sizes in the rear or that one fine for it ?
that garrett manifold pattern too ?
beef
This one is external gate and it's on a T4 flange.
Honestly - this would be a bit laggy if you just wanted 500bhp, but it would do it effortlessly!
#780
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Honestly, a roller T4 like wennys would suit your needs perfectly. If it did blowjobs and made parmos you'd need nothing else in life
#786
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Well, turbo has been confirmed as a journal bearing and so is going back to the states...
Planning to grab a Garrett GT series unit now
Planning to grab a Garrett GT series unit now
#787
B1mbo
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i was just saying that it will not help with the turbo coming on boost, but i dont know how yours is going to work
will it just be like a turbo charged engine, with a super charger between the compresser outlet and the charge cooler ??
#788
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jimbo simple way of thinking about it
low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet
higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure
all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own
low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet
higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure
all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own
#789
B1mbo
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jimbo simple way of thinking about it
low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet
higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure
all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own
low engine speeds the charger is doing the work the turbo is just a small restriction on the inlet
higher engine speeds the turbo starts to work making the charger work more efficiantly due to the higher inlet preshure
all told will is wanting to get a higher boost preshure without the inlet temp getting to high as upping the boost of the charger would do or useing a smaller turbo on its own
#791
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Well, this little puppy was ordered mid afternoon monday and they delivered at 9.32am this morning... from the states :shock:
Well impressed
Precision 46mm External Wastegate
Contains everything a growing lunatic needs
Well impressed
Precision 46mm External Wastegate
Contains everything a growing lunatic needs
#794
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Erm, the tial kit comes with 1 spring... The precision comes with all of them! Thats a £15 a spring saving The precision will fit onto a 44mm Tial take off, but obviously you'll lose 2mm of gas flow. Oh and i think it's more appropriately priced
#798
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saves you having to mix racefuel in everytime you go the petrol station, just top up your water a little bit more often
#799
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or you could run a larger jet on your water injection to slow the burn down to hold of knock, say go from 300cc/min up to 500cc/min which would be about right for 500-550bhp.
saves you having to mix racefuel in everytime you go the petrol station, just top up your water a little bit more often
saves you having to mix racefuel in everytime you go the petrol station, just top up your water a little bit more often
Jets, lines etc. get blocked very easily!
Water injection will be turned off for mapping, the car will be mapped safe and then it will be turned back on as an additional safety measure!
#800
Anyway Will, I feel a tin of power pour per tank at £15 a tub will allow you to run this baby at good power without the need for expensive finger eating race fuel. Worth a thought.
Last edited by Stu @ M Developments; 22-01-2010 at 08:55 AM.