Best position for rad...
Discussion
I am getting my TVR ready for the Chevy LS Turbo Engine I am building for it...deciding what to do with the radiator. Looking for what will give me the best cooling...(ignore the old rad this will be replaced by an alloy one of same size etc)
On the below pic when the bonnet is on looks like air flow will only go to half the rad now..Is this a big problem when on the move?? I have some very powerful SPAL puller fans on the back.
Or shall I pull the rad away slightly and tilt it down then make a fiberglass duct from the intercooler to pass air through the whole core and lose abit of space?? Seems I have space to do this. Would doing this effect the performance of the fans?
If option 2 is much much better then I will gladly do this...Any advice gratefully recieved.
Thanks
Neal
On the below pic when the bonnet is on looks like air flow will only go to half the rad now..Is this a big problem when on the move?? I have some very powerful SPAL puller fans on the back.
Or shall I pull the rad away slightly and tilt it down then make a fiberglass duct from the intercooler to pass air through the whole core and lose abit of space?? Seems I have space to do this. Would doing this effect the performance of the fans?
If option 2 is much much better then I will gladly do this...Any advice gratefully recieved.
Thanks
Neal
If you can (I see space is limited) you need to duct the air into the IC so it can't go around, then join the IC to the rad with a housing around the two so again the air cannot escape. If you are forcing the air through them you are half way there.
If possible then use the air passing over and/or under the car to draw the air from behind the rad, (using bonnet vents and an under tray) then you have a continuous stream of air in and out, job done!
If possible then use the air passing over and/or under the car to draw the air from behind the rad, (using bonnet vents and an under tray) then you have a continuous stream of air in and out, job done!
Edited by Evoluzione on Monday 5th November 21:51
The frontal opening looks fine. Just make sure than all the air that comes through that opening cannot escape around the radiator. I wouldnt bother ducting anything for the intercooler, just the water rad. I wouldnt angle the water rad too steep either, otherwise it will be harder for the airflow to pass through the core. Although perhaps tilting the top forward and bottom rearwards might still allow decent airflow from the front opening. Definitely would not tilt the top rearwards though.
Evoluzione said:
If you can (I see space is limited) you need to duct the air into the IC so it can't go around, then join the IC to the rad with a housing around the two so again the air cannot escape. If you are forcing the air through them you are half way there.
If possible then use the air passing over and/or under the car to draw the air from behind the rad, then you have a continuous stream of air in and out, job done!
Thanks for the reply..If possible then use the air passing over and/or under the car to draw the air from behind the rad, then you have a continuous stream of air in and out, job done!
Ok badly done by MS Paint but I was thinking of blocking off the ends with alloy plate, then in red would be the kinda fiberglass duct I would make slanting the rad down a bit to get it to fit.
Not sure how to vent out, there are bonnet vents that would hopefully take most the heat away.
I definitely would not block off the sides of the intercooler, and I would not directly link the intercooler to the radiator.
By doing that, the only air that can get to the radiator is through the intercooler.
The radiator is the most important one. No matter what way you seal the radiator behind it, the intercooler will always get plenty of air when driving.
Seal off the entire area around the radiator core so that any frontal air must pass through the core. But dont seal it so it only sees air via the intercooler.
By doing that, the only air that can get to the radiator is through the intercooler.
The radiator is the most important one. No matter what way you seal the radiator behind it, the intercooler will always get plenty of air when driving.
Seal off the entire area around the radiator core so that any frontal air must pass through the core. But dont seal it so it only sees air via the intercooler.
Ive got the uprated rad for the LS7 in the Tuscan S runs sweet and never gets hot , good luck with keeping that cool as inlet and engine temps will soon show there head in many ways...
I can honestly say u dont need no more power in a Tuscan than a crate LS7 with no emissions on it esp if you keep the original diff in the back brutal springs to mind......
I can honestly say u dont need no more power in a Tuscan than a crate LS7 with no emissions on it esp if you keep the original diff in the back brutal springs to mind......
stevieturbo said:
I definitely would not block off the sides of the intercooler, and I would not directly link the intercooler to the radiator.
By doing that, the only air that can get to the radiator is through the intercooler.
The radiator is the most important one. No matter what way you seal the radiator behind it, the intercooler will always get plenty of air when driving.
Seal off the entire area around the radiator core so that any frontal air must pass through the core. But dont seal it so it only sees air via the intercooler.
Sounds like the way forward thanks stevie, will be in touch in the next week....By doing that, the only air that can get to the radiator is through the intercooler.
The radiator is the most important one. No matter what way you seal the radiator behind it, the intercooler will always get plenty of air when driving.
Seal off the entire area around the radiator core so that any frontal air must pass through the core. But dont seal it so it only sees air via the intercooler.
packman10_4 said:
Ive got the uprated rad for the LS7 in the Tuscan S runs sweet and never gets hot , good luck with keeping that cool as inlet and engine temps will soon show there head in many ways...
I can honestly say u dont need no more power in a Tuscan than a crate LS7 with no emissions on it esp if you keep the original diff in the back brutal springs to mind......
Your probably right but its being built engine wise for 1000hp+ anyway, I wont have to use it or run at that, well unless I want to break the car lolI can honestly say u dont need no more power in a Tuscan than a crate LS7 with no emissions on it esp if you keep the original diff in the back brutal springs to mind......
chuntington101 said:
What are you planning on runnign for turbo(s)? Have you though about running a water to air intercooler instead of the air to air unit?
Chris.
Still early days but thinking of 2 x 70mm's or maybe a single big T6 like a Borg S480. The car was Rover v8 twin turbo before and ran fine with this intercooler so will use that, I also have Water Injection should I need to turn it on Chris.
sounds like a great build. not sure what turbos you plan on running but i hear the Garrett GT35RS are very good turbos for this power figure. Also the Precision range seemt obe very good. Here is an Corvette making pretty mental power on normal fuel with the precision 67/66s
http://forums.corvetteforum.com/c6-forced-inductio...
Chris.
http://forums.corvetteforum.com/c6-forced-inductio...
Chris.
The Wookie said:
As said, make sure you get a decent separation between the intercooler and the radiator, otherwise you'll end up with an interwarmer as we found out on the racing car this year!
How much gap would you recommend?? Will the bigger the gap make the puller fans less efficient ?? The Wookie said:
As said, make sure you get a decent separation between the intercooler and the radiator, otherwise you'll end up with an interwarmer as we found out on the racing car this year!
I run my intercooler about 1.5" at most in front of my water radiator. It has no measurable impact on temps.IMO the only time it could impact on charge temps, is if the car is sitting stationary with no airflow. When driving, there will always be plenty of air passing through. Although perhaps if the core was far smaller than it should be, maybe that would pose a problem.
For other mounting ideas, check this. The rad can be mounted in various positions as long as it receives airflow. And this system allows for full airflow through the IC too.
http://www.processwest.com.au/index.php/products/s...
Edited by stevieturbo on Wednesday 7th November 18:50
stevieturbo said:
I run my intercooler about 1.5" at most in front of my water radiator. It has no measurable impact on temps.
Indeed that's all you need really! Although I'd still make sure that whatever separates them is thermally insulating, e.g. rubber bobbins rather than a stack of shims if you're using the radiator to mount or locate it.On the race car in one incarnation we had it effectively bolted to the edge of the rad with less than a centimeter of clearance, there was a theory behind it but it escapes me. Upon checking the inlet and outlet temps we found the air was actually getting warmer as it went through until the car hit about 60mph!
Edited by The Wookie on Thursday 8th November 08:40
neal1980 said:
I am getting my TVR ready for the Chevy LS Turbo Engine I am building for it...deciding what to do with the radiator. Looking for what will give me the best cooling...(ignore the old rad this will be replaced by an alloy one of same size etc)
On the below pic when the bonnet is on looks like air flow will only go to half the rad now..Is this a big problem when on the move?? I have some very powerful SPAL puller fans on the back.
Or shall I pull the rad away slightly and tilt it down then make a fiberglass duct from the intercooler to pass air through the whole core and lose abit of space?? Seems I have space to do this. Would doing this effect the performance of the fans?
If option 2 is much much better then I will gladly do this...Any advice gratefully recieved.
Thanks
Neal
Hey Neal, if your having a new alloy rad made you could go for a 60 mm core.On the below pic when the bonnet is on looks like air flow will only go to half the rad now..Is this a big problem when on the move?? I have some very powerful SPAL puller fans on the back.
Or shall I pull the rad away slightly and tilt it down then make a fiberglass duct from the intercooler to pass air through the whole core and lose abit of space?? Seems I have space to do this. Would doing this effect the performance of the fans?
If option 2 is much much better then I will gladly do this...Any advice gratefully recieved.
Thanks
Neal
Mine is now together and happily sitting at 85 degrees, I did need a rad blind to stop it overcooling on these colder days on the motorway. After I refurbed the heater every thing is now working well.
I made my rad and intercooler setup so it would slot in and out like a cassette as I was very limited for space,
When my Internet connection allows I will posts some pictures
Edited by slideways on Thursday 15th November 15:42
Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff