Hey Lou, have you noticed that Jackson Racing have now released new versions of the steel cross tube and the alloy intake "U" tube. They are now both made of plastic which they claim is much better because it is lighter and the black plastic doesn't absorb so much heat. Whilst these claims are true I think the main factor is a cost savings for JR, much like the change to using "gasket in a tube". The supercharger outlet on my car is gasket glued on, and with all four nuts removed and I couldn't even budge it. Anyone got any ideas on how to remove it?
I see what you mean about retaining heat in the cross tube. The air inside the tube is going to be hotter than the air around it. It would seem strange then to see JR claim that their new plastic tubes lack of heat absorption is a benefit. That would mean it would act as a heat insulator (like the HPC) wouldn't it?
I had thought about the header wrap Jeff, but as I'll need to remove the blower to get access to headers it won't be all that easy (at least not for me anyway).
M@
re[2]: HPC coatings
-
lou Girardin
re[2]: HPC coatings
A scraper is the best solution, don't use header wrap though I've seen too
many reports of headers cracking due to excess heat under the wrap.
As far as heat absorption in the cross tube, 2 words- water injection.
Lou
many reports of headers cracking due to excess heat under the wrap.
As far as heat absorption in the cross tube, 2 words- water injection.
Lou
-
darryl
re[2]: HPC coatings
HPC coatings not only help retain heat, i am sure they also prevent more heat
from entering what is coated. So it is benificial.
heat wrap is good, but I have heard that with time, the headers etc could
deteriorate due to moisture keeping under the wrap, don't quote me on that
though.
two words - water injection, I have three more words, waste of time, and a
couple more better words, bigger intercooler, oh, and better tuning.
Seriously, if you need water injection on our roads with our climate, then you
are running a blower or turbo well out of its efficiency range. Water
injection is just a band aid for a few things, poor tuning, lack of decent
intercooler, a blower or turbo thats being over worked, or you have one
seriously modded engine and are after every bit of performance and reliablity
at the extreme (which is why some of the top WRC teams use it).
with the right tuning and a good intercooler, water injection shouldn't be
needed realy. besides, a water injection system can fail, an intercooler
can't. better to use a water sprayer on a bigger intercooler than to use it in
the engine.
from entering what is coated. So it is benificial.
heat wrap is good, but I have heard that with time, the headers etc could
deteriorate due to moisture keeping under the wrap, don't quote me on that
though.
two words - water injection, I have three more words, waste of time, and a
couple more better words, bigger intercooler, oh, and better tuning.
Seriously, if you need water injection on our roads with our climate, then you
are running a blower or turbo well out of its efficiency range. Water
injection is just a band aid for a few things, poor tuning, lack of decent
intercooler, a blower or turbo thats being over worked, or you have one
seriously modded engine and are after every bit of performance and reliablity
at the extreme (which is why some of the top WRC teams use it).
with the right tuning and a good intercooler, water injection shouldn't be
needed realy. besides, a water injection system can fail, an intercooler
can't. better to use a water sprayer on a bigger intercooler than to use it in
the engine.
-
lou Girardin
re[2]: HPC coatings
Sorry Darryl, tell the Buick turbo guys in the States that WI doesn't work. A
WI set up can get inlet temps below ambient, no intercooler can do that.A $100
WI set-up was a lot more attractive to me than a $US1000 W/A intercooler.
Before you say there a cheaper options, they don't work with JRSC's.,too much
throttled volume. As far as intercoolers not failing, don't hoses blow off?,
stones puncture tubes?, etc. Especially on those naff set ups with the
intercooler exposed at the front.
Lou
WI set up can get inlet temps below ambient, no intercooler can do that.A $100
WI set-up was a lot more attractive to me than a $US1000 W/A intercooler.
Before you say there a cheaper options, they don't work with JRSC's.,too much
throttled volume. As far as intercoolers not failing, don't hoses blow off?,
stones puncture tubes?, etc. Especially on those naff set ups with the
intercooler exposed at the front.
Lou
-
darryl
re[2]: HPC coatings
OK, intersting that the intercoolers didn't prove to be too good. You are
right, an I/C won't get temps below ambiant, but with NZ's climate is that a
worry? Water injection is OK, no doubts there, but I wouldn't want to rely on
a W/i system to look after my car (specialy one thats set up basicaly for
$100, how do you correctly meter the amount of water flow to different load
conditions?) and then there's the pain of filling it up all the time. Not an
issue if its only required on track days etc I guess.
Sure an I/C pipe can blow off, if its not clamped properly, and there is a
simple solution to prevent this. Holes, from stones, well, got to admit, not
much to prevent that if you have your intercooler in the best, even if naff,
place for it.
Water Injection, the pump can fail, the jet can block etcetc, but I suppose,
this could all happen with the fuel system too.
How do you mean too much 'throttle voluume' exactly? Not sure I understand
what you mean and what problem this is?
I suppose, if for $100 you can make it work, congrats.
may I ask how you set this up? My brother was going to use W/I on his drag car
(its a 13B PP so and I/C is definitley not an option) but use methanol instead
of water.
Obviously you have done more research than my, none at all, this was an area
we were going to look into as we wanted to intercool our supercharged 13B, so
maybe we may have found the same problems as you guys. I guess maybe you would
have saved me some $$$.
right, an I/C won't get temps below ambiant, but with NZ's climate is that a
worry? Water injection is OK, no doubts there, but I wouldn't want to rely on
a W/i system to look after my car (specialy one thats set up basicaly for
$100, how do you correctly meter the amount of water flow to different load
conditions?) and then there's the pain of filling it up all the time. Not an
issue if its only required on track days etc I guess.
Sure an I/C pipe can blow off, if its not clamped properly, and there is a
simple solution to prevent this. Holes, from stones, well, got to admit, not
much to prevent that if you have your intercooler in the best, even if naff,
place for it.
Water Injection, the pump can fail, the jet can block etcetc, but I suppose,
this could all happen with the fuel system too.
How do you mean too much 'throttle voluume' exactly? Not sure I understand
what you mean and what problem this is?
I suppose, if for $100 you can make it work, congrats.
may I ask how you set this up? My brother was going to use W/I on his drag car
(its a 13B PP so and I/C is definitley not an option) but use methanol instead
of water.
Obviously you have done more research than my, none at all, this was an area
we were going to look into as we wanted to intercool our supercharged 13B, so
maybe we may have found the same problems as you guys. I guess maybe you would
have saved me some $$$.
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