Custon Fmic which intercooler?
#1
Boosting Again
Thread Starter
Custon Fmic which intercooler?
Well im looking for a fmic for my turbo 2 and i was wondering what i should use for a core. i was looking at a couple on ebay that look pretty nice. I just wanted another opinon of how good they will be. I am going to be useing this on the stock turbo for a while untill i can afford somekind of t04 + mircotech etc...
what do you think of these intercoolers?
http://cgi.ebay.com/ebaymotors/ws/eB...9899828#bottom
or
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2469705410
or should i get somethign else?
what do you think of these intercoolers?
http://cgi.ebay.com/ebaymotors/ws/eB...9899828#bottom
or
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2469705410
or should i get somethign else?
#3
my fc broke
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http://www.imagestation.com/picture/...e/f9e711e4.jpg
this guy lives down the street from me and it seems to be working fine on a TO4B turbo
#4
that car is...colorful
do you think you could get a picture of the engine bay and how he has the piping routed? I am thinking of doing a spearco like that for my t04b. also...dimensions? please??
do you think you could get a picture of the engine bay and how he has the piping routed? I am thinking of doing a spearco like that for my t04b. also...dimensions? please??
#6
Locust of the apocalypse
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I'm working on a Custom front mount right now....
Unless you want to cut up you front bumper, cut the bumper support and cut some other stuff, neither of those will fit. (you will have to mount them in the same manner that you do a Greddy FMIC for the TII).. but they will work if ya feel like doing that!
I'm mounting mine between the front subframe rails.. about two inches back from the front lip.. the MAX width to one in there is 26 inches. that gives a 20 inch core... the endtanks also have to exit to the rear. the you can run the pipiing up and around the radiator through the walls (have to cut a little bit of sheet metal).
I'll be getting my core in next week and posting pictures.
Thats also a first gen in the pics... i have no idea what the dimensions are for those.
Unless you want to cut up you front bumper, cut the bumper support and cut some other stuff, neither of those will fit. (you will have to mount them in the same manner that you do a Greddy FMIC for the TII).. but they will work if ya feel like doing that!
I'm mounting mine between the front subframe rails.. about two inches back from the front lip.. the MAX width to one in there is 26 inches. that gives a 20 inch core... the endtanks also have to exit to the rear. the you can run the pipiing up and around the radiator through the walls (have to cut a little bit of sheet metal).
I'll be getting my core in next week and posting pictures.
Thats also a first gen in the pics... i have no idea what the dimensions are for those.
Last edited by YearsOfDecay; 03-27-04 at 10:05 PM.
#7
Boosting Again
Thread Starter
Years what size core are you going with? and which way are your endtanks going to go out?
And since those are too big then what would you recomend?
And since those are too big then what would you recomend?
Last edited by gergrx7; 03-27-04 at 10:58 PM.
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#8
yeah i was actually confused by the first picture..haha realized it was an fb later. Still, I really like the superior flow of the bar and plate design that the spearcos have. Now I just need to save a good 500 for the parts!
#10
Brother of the Rotary
iTrader: (2)
Spearco
Here is my spearco core: Its 25 1/2" x 8" x 3 1/2".
Its a very effiecient core, my intake temps are usually around 7-10C higher than ambient even on the hottest days. And that is whith the 'cold side' of my piping running near the UIM.
The IC itself sits further back than the Greddy VSPL kit. I like that aspect, doesn't draw as much attention. You almost can't tell I have a FMIC.
The last pic shows my pipe routing. Not ideal in terms of heat, but I have very few sharp bends which is good.
Its a very effiecient core, my intake temps are usually around 7-10C higher than ambient even on the hottest days. And that is whith the 'cold side' of my piping running near the UIM.
The IC itself sits further back than the Greddy VSPL kit. I like that aspect, doesn't draw as much attention. You almost can't tell I have a FMIC.
The last pic shows my pipe routing. Not ideal in terms of heat, but I have very few sharp bends which is good.
#12
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When choosing an intercooler, you want the MAXIMUM charge air surface area available. The more charge air (compressed air) surface area available, the less restrictive the intercooler will be, so the less the turbo is going to have to work to make X lbs boost. (if there's 2 psi pressure drop, it makes 17 psi to get 15 psi at the engine. If there's 1 psi pressrue drop, it makes 16 psi to get 15 psi at the engine.)
Looking at these two intercoolers with the SAME core dimensions, just the charge air moves in a different direction:
Say they're 8" high by 20" wide by 3" thick.
Intercooler A will have 8 * 3 = 24 sq-in charge air face available. About 45% of that is actually available for air to flow through (you've got the ambient air passageways there too remember, as well as the walls of the intercooler, etc..) that leaves 10.8 sq-in avaialable for charge air to flow through.
Now, Intercooler B will have 20 * 3 = 60 sq-in available, times 45% is actually 27 sq-in available for the charge air to flow through. That's almost TRIPLE the area for your compressed air to pick where it wants to go.
The only drawbacks are a little added weight (what, two pounds maybe? if that?) and the end tanks should have a couple (maybe just one) baffles in them to distribute the air more evenly.
Looking at these two intercoolers with the SAME core dimensions, just the charge air moves in a different direction:
Say they're 8" high by 20" wide by 3" thick.
Intercooler A will have 8 * 3 = 24 sq-in charge air face available. About 45% of that is actually available for air to flow through (you've got the ambient air passageways there too remember, as well as the walls of the intercooler, etc..) that leaves 10.8 sq-in avaialable for charge air to flow through.
Now, Intercooler B will have 20 * 3 = 60 sq-in available, times 45% is actually 27 sq-in available for the charge air to flow through. That's almost TRIPLE the area for your compressed air to pick where it wants to go.
The only drawbacks are a little added weight (what, two pounds maybe? if that?) and the end tanks should have a couple (maybe just one) baffles in them to distribute the air more evenly.
#13
Boosting Again
Thread Starter
so you are saying that it would be better to have the endtanks on top and on bottom of the core? im confused on what you are tryign to tell me.
what would be an ideal size core, and the total size with endtanks to fit a little further back like on evilrotor's car?
Where else is a good place to find spearco cores?
what would be an ideal size core, and the total size with endtanks to fit a little further back like on evilrotor's car?
Where else is a good place to find spearco cores?
Last edited by gergrx7; 03-28-04 at 03:14 PM.
#14
evilrotor-
how do you have your griffin held to the car? I have a griffin in my car, but right now its just screwed to the cross member/hoodlatch thing. The previous owner is to thank for that. I am thinking I need to get some brackets welded on to attach to the stock location.
how do you have your griffin held to the car? I have a griffin in my car, but right now its just screwed to the cross member/hoodlatch thing. The previous owner is to thank for that. I am thinking I need to get some brackets welded on to attach to the stock location.
#15
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Originally posted by gergrx7
Well im looking for a fmic for my turbo 2 and i was wondering what i should use for a core. i was looking at a couple on ebay that look pretty nice. I just wanted another opinon of how good they will be. I am going to be useing this on the stock turbo for a while untill i can afford somekind of t04 + mircotech etc...
what do you think of these intercoolers?
http://cgi.ebay.com/ebaymotors/ws/eB...9899828#bottom
or
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2469705410
or should i get somethign else?
Well im looking for a fmic for my turbo 2 and i was wondering what i should use for a core. i was looking at a couple on ebay that look pretty nice. I just wanted another opinon of how good they will be. I am going to be useing this on the stock turbo for a while untill i can afford somekind of t04 + mircotech etc...
what do you think of these intercoolers?
http://cgi.ebay.com/ebaymotors/ws/eB...9899828#bottom
or
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2469705410
or should i get somethign else?
Originally posted by gergrx7
Where else is a good place to find spearco cores?
Where else is a good place to find spearco cores?
http://www.turboneticsinc.com/
Originally posted by gergrx7
so you are saying that it would be better to have the endtanks on top and on bottom of the core? im confused on what you are tryign to tell me.
so you are saying that it would be better to have the endtanks on top and on bottom of the core? im confused on what you are tryign to tell me.
#16
Brother of the Rotary
iTrader: (2)
Originally posted by CRXtoRX7
evilrotor-
how do you have your griffin held to the car? I have a griffin in my car, but right now its just screwed to the cross member/hoodlatch thing. The previous owner is to thank for that. I am thinking I need to get some brackets welded on to attach to the stock location.
evilrotor-
how do you have your griffin held to the car? I have a griffin in my car, but right now its just screwed to the cross member/hoodlatch thing. The previous owner is to thank for that. I am thinking I need to get some brackets welded on to attach to the stock location.
#17
Locust of the apocalypse
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Evilrotor....
The SPEARCO install is a dam good job!!! and the dimensions are dam near the same as mine, mounting position is real close as well... I went with in/outs on the back of the endtanks near the middle for better flow through the IC.
I didn't want a bar and plate though, which is why i went with the one i got.
I thought about bringin both the pipes out one side like you did, the i said, screw it, I'm moving the battery and tearing out the AC anyway, might as well take it out either side and use less pipe!!
I think I may go with the top exiting tanks in the future though, as that is a much more direct route!!!
As for it sitting back, thats EXACTLY what I'm going for.. i don't need a rock smashing my friggin core, and I'm not into advertising that my car has a lot of parts under the hood for people to steal!!!
The SPEARCO install is a dam good job!!! and the dimensions are dam near the same as mine, mounting position is real close as well... I went with in/outs on the back of the endtanks near the middle for better flow through the IC.
I didn't want a bar and plate though, which is why i went with the one i got.
I thought about bringin both the pipes out one side like you did, the i said, screw it, I'm moving the battery and tearing out the AC anyway, might as well take it out either side and use less pipe!!
I think I may go with the top exiting tanks in the future though, as that is a much more direct route!!!
As for it sitting back, thats EXACTLY what I'm going for.. i don't need a rock smashing my friggin core, and I'm not into advertising that my car has a lot of parts under the hood for people to steal!!!
Last edited by YearsOfDecay; 03-29-04 at 09:49 AM.
#18
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Originally posted by Barwick
When choosing an intercooler, you want the MAXIMUM charge air surface area available. The more charge air (compressed air) surface area available, the less restrictive the intercooler will be, so the less the turbo is going to have to work to make X lbs boost. (if there's 2 psi pressure drop, it makes 17 psi to get 15 psi at the engine. If there's 1 psi pressrue drop, it makes 16 psi to get 15 psi at the engine.)
Looking at these two intercoolers with the SAME core dimensions, just the charge air moves in a different direction:
Say they're 8" high by 20" wide by 3" thick.
Intercooler A will have 8 * 3 = 24 sq-in charge air face available. About 45% of that is actually available for air to flow through (you've got the ambient air passageways there too remember, as well as the walls of the intercooler, etc..) that leaves 10.8 sq-in avaialable for charge air to flow through.
Now, Intercooler B will have 20 * 3 = 60 sq-in available, times 45% is actually 27 sq-in available for the charge air to flow through. That's almost TRIPLE the area for your compressed air to pick where it wants to go.
The only drawbacks are a little added weight (what, two pounds maybe? if that?) and the end tanks should have a couple (maybe just one) baffles in them to distribute the air more evenly.
When choosing an intercooler, you want the MAXIMUM charge air surface area available. The more charge air (compressed air) surface area available, the less restrictive the intercooler will be, so the less the turbo is going to have to work to make X lbs boost. (if there's 2 psi pressure drop, it makes 17 psi to get 15 psi at the engine. If there's 1 psi pressrue drop, it makes 16 psi to get 15 psi at the engine.)
Looking at these two intercoolers with the SAME core dimensions, just the charge air moves in a different direction:
Say they're 8" high by 20" wide by 3" thick.
Intercooler A will have 8 * 3 = 24 sq-in charge air face available. About 45% of that is actually available for air to flow through (you've got the ambient air passageways there too remember, as well as the walls of the intercooler, etc..) that leaves 10.8 sq-in avaialable for charge air to flow through.
Now, Intercooler B will have 20 * 3 = 60 sq-in available, times 45% is actually 27 sq-in available for the charge air to flow through. That's almost TRIPLE the area for your compressed air to pick where it wants to go.
The only drawbacks are a little added weight (what, two pounds maybe? if that?) and the end tanks should have a couple (maybe just one) baffles in them to distribute the air more evenly.
You have to balance the budget somewhere... do you want less pressure drop or better cooling efficiency.. I'm opting for cooling efficiency being that it was the whole point of adding a front mount in the first place...
ok, ,i'm done now
#19
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Originally posted by YearsOfDecay
HOWEVER, the COOLING efficiency of intercooler B is AT LEAST 3X LESS than that of intercooler A because the dwell time of the air charge (the time it takes for 1 molecule of air to cross the length of the core) is three time less than in intercooler A.. Now then, because the air spends less time in the intercooler, it has less time to interact with the internal fins and walls of the intercooler to bleed off heat, thus, the air temp comming out of intercooler B is going to be higher than that of intercooler A.
HOWEVER, the COOLING efficiency of intercooler B is AT LEAST 3X LESS than that of intercooler A because the dwell time of the air charge (the time it takes for 1 molecule of air to cross the length of the core) is three time less than in intercooler A.. Now then, because the air spends less time in the intercooler, it has less time to interact with the internal fins and walls of the intercooler to bleed off heat, thus, the air temp comming out of intercooler B is going to be higher than that of intercooler A.
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