996 turbo/s/x50/gt2 & 997 gen 1 turbo - intercoolers
Discussion
We have been testing for quite some time now different intercooler solutions for a number of power ranges. That has included different aftermarket intercoolers as well as GT2 coolers etc.
In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
996ttalot said:
We have been testing for quite some time now different intercooler solutions for a number of power ranges. That has included different aftermarket intercoolers as well as GT2 coolers etc.
In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
Interesting and well worth knowing.In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
Was hoping to get down to you this week but its been mad. Will try next time I'm at home.
Moosh said:
Hi Ken
Do you know what IC's are in mine. 2004 996 turbo X50
They are the x50/gt2 intercoolers. Better than the 996 turbo car, but still very poor. When we tune cars to say 1 to 1.1 bar, on standard intercoolers starting at 20c IAT, we typically see 45c by 130mph. These GT2RS intercoolers go no where near that. Do you know what IC's are in mine. 2004 996 turbo X50
We even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
crisisjez said:
996ttalot said:
We have been testing for quite some time now different intercooler solutions for a number of power ranges. That has included different aftermarket intercoolers as well as GT2 coolers etc.
In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
Interesting and well worth knowing.In summary, any of the above cars in the subject would benefit considerably from fitting the Porsche GT2RS intercoolers.
For higher hp turbos (over 650hp+) they become too restrictive in terms of flow versus cooling. You then need 5 x 14 inch high flow coolers.
We have seen a minimum 10c drop in intake temps compared with other intercoolers. The signifcance is that this means that ignition is not adjusted as quickly, so you retain power for longer, hence the car is quicker, especially for speeds over 120mph.
For the cost this is a no brainer and cannot recommend these highly enough.
Ken
Was hoping to get down to you this week but its been mad. Will try next time I'm at home.
996ttalot said:
They are the x50/gt2 intercoolers. Better than the 996 turbo car, but still very poor. When we tune cars to say 1 to 1.1 bar, on standard intercoolers starting at 20c IAT, we typically see 45c by 130mph. These GT2RS intercoolers go no where near that.
We even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Is there a big difference in cost between the GT2RS IC's and the 5 x 14 inch coolers you useWe even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Moosh said:
996ttalot said:
They are the x50/gt2 intercoolers. Better than the 996 turbo car, but still very poor. When we tune cars to say 1 to 1.1 bar, on standard intercoolers starting at 20c IAT, we typically see 45c by 130mph. These GT2RS intercoolers go no where near that.
We even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Is there a big difference in cost between the GT2RS IC's and the 5 x 14 inch coolers you useWe even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Ken
996ttalot said:
Moosh said:
996ttalot said:
They are the x50/gt2 intercoolers. Better than the 996 turbo car, but still very poor. When we tune cars to say 1 to 1.1 bar, on standard intercoolers starting at 20c IAT, we typically see 45c by 130mph. These GT2RS intercoolers go no where near that.
We even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Is there a big difference in cost between the GT2RS IC's and the 5 x 14 inch coolers you useWe even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Ken
The GT2RS IC's appear to be fairly low cost, Approximately how many hours to fit them
Moosh said:
996ttalot said:
Moosh said:
996ttalot said:
They are the x50/gt2 intercoolers. Better than the 996 turbo car, but still very poor. When we tune cars to say 1 to 1.1 bar, on standard intercoolers starting at 20c IAT, we typically see 45c by 130mph. These GT2RS intercoolers go no where near that.
We even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Is there a big difference in cost between the GT2RS IC's and the 5 x 14 inch coolers you useWe even fitted them as a test to our k1639 car which runs 1.5 bar and 620-650hp. Even then it was reducing temps by 10c across the rev range. On our full version k1639 which makes near to 700hp we don't use them - we use 5 x 14 inch coolers because they become a restriction in terms of air flow.
Think of it this way, the turbo flows to the intercooler and then through to the throttle body/plenum into the manifold. Just because an intercooler is great at cooling, does not necessarily make it the right intercooler for your car - great cooling comes at the expensive of air flow. This is what we have been looking at. If the air flow/volume is too great, then it will choke the turbo so that the turbine runs slower.
An intercooler could be good for one set up but poor for another set up. You have to look at the turbos you are running (hybrids etc) and see what is best, but imo, anything under 650hp would be good with the gt2rs intercoolers.
And for the price installed as said it is a no brainer.
Ken
The GT2RS IC's appear to be fairly low cost, Approximately how many hours to fit them
You don't lose any power until IATs are at 37c, the first correction is made (minor correction) but you lose power especially after 50c, 55c, 60c etc.
And it won't correct a poor map of course.
Fitting time really depends but we can do this in 4 hours now.
Remember in warmer weather where ambient temp is higher to start with (that's if we ever get any warmer weather in this country
) you will be losing power quicker because you will be hitting the trigger points quicker. Absolutely a good mod for your set up.
911Viking said:
996ttalot said:
Mc F said:
Im going somewhere warm......should I consider for my set up Ken?
Yes I was going to call you next week. Absolutely we should do this.
widow maker said:
can anyone give the best uk price for gt2rs intercoolers x2
seen them on us site for 900 dollars sonnenporscheoemparts.com
and is the mod to fit them the same as on the 997 ie with 6 cable ties and some trimming of the plastic ducts
I have to say I don't know how they are doing it at that price - not convinced personally since we are buying direct to manufacturer and cannot get that cheap. seen them on us site for 900 dollars sonnenporscheoemparts.com
and is the mod to fit them the same as on the 997 ie with 6 cable ties and some trimming of the plastic ducts
You can chose how to fit them but you need to make mods to the shrouds and also there are hose implications.
Word of caution - the end tanks are only plastic so you need to take care to ensure they won't come apart - really depends on what turbos and pressure you plan to run but that can be overcome.
markcoznottz said:
I can't for the life of me think why a British company like pro alloy Motorsport don't make alloy coolers and rads/ condensers for 996/997 tt's. They would sell loads, especially the rads, and they would last indefinitely. And TBH they are usually no more than OE price.
I've often thought that too, easy business opportunity for someone who has the time (or inclination).Gassing Station | Porsche General | Top of Page | What's New | My Stuff