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2 years ago we released the highly appreciated, well performing complete intercooler solution for the 997. Here comes the option for 991.1 and 991.2 Turbo/S!
We are happy to present to the Rennlist forum members, our complete performance charge air, high flowing and great cooling solution for Porsche 991.
The complete charge air performance solution for Porsche 991 Turbo!
Comes at a package price and includes both our motorsport grade intercooler package and high flow Y-pipe with all hoses and accessories for installation. To furthermore enable for a better breathing engine our newly developed inlet hoses for the 991 can be purchase alongside these products.
The intercooler kit and the y-pipe are great products alone. Used together they generate a great inlet temperature reduction, less backpressure of the whole system and thereby enabling more power.
Significant advantages with do88 BigPack (OEM intercooler/pipes):
- Significantly improved Air flow! (see diagram below).
- Cooler air to your engine! (see diagram below).
- Top quality, high density UK-made motorsport cores.
- 3D freeform designed cast end tanks.
- Custom designed carbon fiber ambient air guides.
- Assembly air flow at 0,175bar/2,54psi pressure drop: 790 CFM (602 CFM), do88 31% higher!
- Y-pipe made of 2,5" (63mm) mandrel bent aluminum pipes.
- Y-pipe cast, smooth flowing collector part.
- Comes with high quality silicone hoses and accessories for installation.
About the intercoolers:
Already from the beginning we realized that we could not sacrifice anything to keep the cost down we just had to do the best possible in the space available in the car! First of all we made a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which have great cooling efficiency among with a low weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency. To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions. The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance are to use all ambient cooling air available, to optimize this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.
With this way to build our intercoolers the weight increase compared to the OEM ones was relatively small considering the size of our intercooler and that its all made of aluminium. Our intercooler weight is 5,4 kg (11,9 lb) per piece and the 991 OEM intercooler weights 3,1 kg (6,8 lb) per piece. It might sound like a big weight increase but compared to other actors on the market with intercoolers in this size it's a low weight!
About the Y-pipe:
In the beginning of the development process of this product we spent a lot of time thinking what would be the preferred way to build a Y-pipe and here is the result of our conclusions and development process! Our pipe have both a very good flow rate and a low weight which is accommodated by composing mandrel bent lightweight pipes with a high quality 3D freeform designed cast joint between them. Onto the cast part we then welded CNC-machined connections for bov and breather hoses.
This construction adds a lot of performance but only a tad of extra weight.
The pipes are then finished in a high quality powder coat that makes them look as good as they perform!
Performance:
At the same time as our BigPack lowers the intake temperature it also flow better than the 991.1 original intercoolers! Please have a look at the air flow rates at different pressure drops in the graph below where we compared our BigPack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!
The price is 3748 USD excluding the inlet ducts and plenum.
The Y-pipe comes in black powder coating.
The products can be purchased separately as well. Press any of the pictures to get to the product!
Fell free to shoot us a PM or reply here if you have any questions!
// Isak, do88.
I REALLY APPRECIATE temperature data and flow data like this from a manufacturer. Is the temperature data from a pure stock tune 991 turbo or was boost added. Thanks !
Any data or reference for road course use. This is the most challenging situation where sessions can be 20 minutes or more maximizing full throttle. The short dyno pulls provide some visibility, but look forward to more re long hard runs.
What I like about this kit is that it is a complete system that works together including the hoses. I believe the tube and fin intercooler core design lends itself better than bar and plate for road courses especially given the fact that our coolers are not mounted in front where damage can occur from road debris but I do not have the data to back that up.
Any data or reference for road course use. This is the most challenging situation where sessions can be 20 minutes or more maximizing full throttle. The short dyno pulls provide some visibility, but look forward to more re long hard runs.
I am sorry but this is nothing that we have available. The temp chart is from a pull on a closed air strip but not from track driving, no.
Was at VMAX again a few weeks ago. Ran 210mph so for straight line drag and road use these do88 unbeatable at their price point. http://www.vmax200.com/results/
My bolt on set up with these do88 intercoolers maxed out at 68c on a day when IATs were 46c before we even start as it was a warm day.
Friend who runs tuning shop has set up on 997.1 manual with GT2 RS intercoolers and meth had IATs as high as 72c on same day. He has 997.1 hybrid VTGs and I have GT2 hybrid VTGs so not quite apples with apples but to run cooler than a car running meth outstanding IMO
2 years ago we released the highly appreciated, well performing complete intercooler solution for the 997. Here comes the option for 991.1 and 991.2 Turbo/S!
We are happy to present to the Rennlist forum members, our complete performance charge air, high flowing and great cooling solution for Porsche 991.
The complete charge air performance solution for Porsche 991 Turbo!
Comes at a package price and includes both our motorsport grade intercooler package and high flow Y-pipe with all hoses and accessories for installation. To furthermore enable for a better breathing engine our newly developed inlet hoses for the 991 can be purchase alongside these products.
The intercooler kit and the y-pipe are great products alone. Used together they generate a great inlet temperature reduction, less backpressure of the whole system and thereby enabling more power.
Significant advantages with do88 BigPack (OEM intercooler/pipes):
- Significantly improved Air flow! (see diagram below).
- Cooler air to your engine! (see diagram below).
- Top quality, high density UK-made motorsport cores.
- 3D freeform designed cast end tanks.
- Custom designed carbon fiber ambient air guides.
- Assembly air flow at 0,175bar/2,54psi pressure drop: 790 CFM (602 CFM), do88 31% higher!
- Y-pipe made of 2,5" (63mm) mandrel bent aluminum pipes.
- Y-pipe cast, smooth flowing collector part.
- Comes with high quality silicone hoses and accessories for installation.
About the intercoolers:
Already from the beginning we realized that we could not sacrifice anything to keep the cost down we just had to do the best possible in the space available in the car! First of all we made a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which have great cooling efficiency among with a low weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency. To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions. The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance are to use all ambient cooling air available, to optimize this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.
With this way to build our intercoolers the weight increase compared to the OEM ones was relatively small considering the size of our intercooler and that its all made of aluminium. Our intercooler weight is 5,4 kg (11,9 lb) per piece and the 991 OEM intercooler weights 3,1 kg (6,8 lb) per piece. It might sound like a big weight increase but compared to other actors on the market with intercoolers in this size it's a low weight!
About the Y-pipe:
In the beginning of the development process of this product we spent a lot of time thinking what would be the preferred way to build a Y-pipe and here is the result of our conclusions and development process! Our pipe have both a very good flow rate and a low weight which is accommodated by composing mandrel bent lightweight pipes with a high quality 3D freeform designed cast joint between them. Onto the cast part we then welded CNC-machined connections for bov and breather hoses.
This construction adds a lot of performance but only a tad of extra weight.
The pipes are then finished in a high quality powder coat that makes them look as good as they perform!
Performance:
At the same time as our BigPack lowers the intake temperature it also flow better than the 991.1 original intercoolers! Please have a look at the air flow rates at different pressure drops in the graph below where we compared our BigPack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!
The price is 3748 USD excluding the inlet ducts and plenum.
The Y-pipe comes in black powder coating.
The products can be purchased separately as well. Press any of the pictures to get to the product!
Fell free to shoot us a PM or reply here if you have any questions!
// Isak, do88.
Was your intercooler outlet temperature comparison tested on a stock tuned 991.2 turbo S ? Thanks
If I was looking for intercoolers I think I'd be asking about the new 991 GT2 RS coolers do88 have recently released for my 991 turbo - very special designed for track use - wish these puppies were out when I was buying coolers
Interesting, 9500GBP is steep, are these Marston cores? You mention for the 991 Turbo, have they put a kit together that fits the 991 Turbo?
- It would be nice to see the full lap log comparison
- The size might too big for the smaller 991 Turbos, especially the 991.1, not sure if they have done any testing, could be inducive of big pressure drops and slow boost onset
You'll need to speak to the guys at 9e/Do88 as they were co developed for 9e's customer GT2 RS but I know for sure 100% these have been extensively tested on track for 12 months or so by Ken at 9e and he'll be happy to share data with you. Think they're doing an Xmas deal at the moment for #8000.
No they're for GT2 RS so I expect you'd need to modify for 991 turbo s but should be easily doable?
Here's a pic of the car they were developed on and for - the customer has very deep pockets and if I told you development cost you'd fall off your chair other than to say at £8k they're a bargain. Thats paint not stickers by the way!
Jean, they were developed at Spa where even the OEM set up with spray etc was not performing so well. After only a few laps the RS would be down on power. Not easy to run VTG turbos with 700bhp even Porsche struggle to keep the power!
01-29-2019, 09:59 AM
