S70-R Posted February 3, 2016 Author Report Share Posted February 3, 2016 Thank you for your reply. That mod would only be needed to have stronger bolts holding the heavier turbo, not a mandatory requirement right? The outside dimensions of the GTX3576R compressor housing are not the same as the outside dimensions of the 3076R and 3071R? Link to comment Share on other sites More sharing options...
Johann Posted February 3, 2016 Report Share Posted February 3, 2016 Modified R/XC90 manifold, Same mod for the earlier style, M10 threaded. For the compressor dimensions there are a couple of options as posted earlier. When using the so called "compact" option the GT3582 should fit like a 3071 without need for clearing the gearbox mount and leaving plenty of room to the firewall. Link to comment Share on other sites More sharing options...
S70-R Posted February 3, 2016 Author Report Share Posted February 3, 2016 Thank you! Link to comment Share on other sites More sharing options...
Martijn_B Posted February 4, 2016 Report Share Posted February 4, 2016 We have some experiences here in NL now with the GT and GTX series. First of all was Koen with his GTX3071 and .63 housing, made 430bhp on 1.6 bar. I believe this is about max with 850 engine and stock intake manifold and R exhaust. Then we have one with a gt3076 .82 on about 1.8bar making 500 at the engine, RN engine and RN intake mani and spaghetti exhaust. Spools late. Then we have a GT3582 with .63 exhaust and stock RN engine. Making firstly about 530 at the engine and now with tweaked cams and custom intake (same as mine) over 600 at the engine. Myself I upgraded to a .82 housing on the GTX3071 as this only means a little extra lag (300rpm) but adds a lot of breathing where I need it with my ENEM cams and custom intake. I run EWG now too. Will dyno it soon but expect 450 bhp on moderate boost levels (1.5 bar not higher). Koen has now purchased a GTX3582 with .63 housing. This fits without modifications. I wouldn't run this with IWG though. He says spool isn't that bad.. but I guess we will find out in one month or so when it has been tuned and dynoed. He will go towards or over 550 I think. So.. I would say, if you want responsiveness and don't aim for say 420 to 430, a gtx3071 with .63 will do. If you want an extra 20-30 bhp then take a .82. If that's not enough take a larger turbo and also.consider the HX40. Oh, and I am well impressed by how German 850R his BW spools..let's see what it delivers up top but I think it's well capable of hitting 450-500 at the engine..with similar spool as your current turbo Link to comment Share on other sites More sharing options...
aziz Posted February 4, 2016 Report Share Posted February 4, 2016 10 hours ago, Martijn_B said: Oh, and I am well impressed by how German 850R his BW spools..let's see what it delivers up top but I think it's well capable of hitting 450-500 at the engine..with similar spool as your current turbo tmm9 made some impressive numbers on his 7064!!! Link to comment Share on other sites More sharing options...
S70-R Posted February 4, 2016 Author Report Share Posted February 4, 2016 Martijn_B, my goals were told on the first post :) It would be around 450-500 crank hp. Im now considering a custom exhaust manifold (similar to the those ATP produces for the C30 T5) along with GTX3576R .82 housing. All together with a ported head and 500hp shouldn't be difficult with this turbo. And I would be close to the safe limit of the walbro 255 fuel pump and 4bar 730cc bosch injectors. I may also consider other cams other than the N/A cams. What do you guys think about catcams? http://www.catcams.com/products/camshafts/datasheet.aspx?ENGINE_id=216&CAMSETUP_id=910 There's almost no one talking about them. Considering the specs, they should be at least slightly better than N/A cams. Would this be fine to run with stock springs and lifters (notice they state 10mm intake valve lift)? At least they say so. Oh, and least but not last, they should be significantly cheaper cheaper than ENEM cams I guess. Link to comment Share on other sites More sharing options...
Martijn_B Posted February 5, 2016 Report Share Posted February 5, 2016 18 hours ago, S70-R said: Martijn_B, my goals were told on the first post :) Then... Youre welcome for the summary and can now make a decision about which way to go, right? Link to comment Share on other sites More sharing options...
S70-R Posted February 5, 2016 Author Report Share Posted February 5, 2016 6 minutes ago, Martijn_B said: Then... Youre welcome for the summary and can now make a decision about which way to go, right? I'm really leaning for the GTX3576R with custom exhaust manifold and external wastegate. Its compressor is plenty for 500hp with good efficiency and the .82 GT35 turbine and housing gives the necessary amount of flow for it. In terms of garretts, this one should be the best choise if Im looking for 500hp with good efficiency and if Im looking for the best early spool possible. Link to comment Share on other sites More sharing options...
Johann Posted February 5, 2016 Report Share Posted February 5, 2016 But the ATP manifold isn't going to fit an 800 platform car. In all those years ATP never made an effort to produce a drop in manifold utilising an external wastegate setup. The version offered for P2 cars simply doesn't fit. Don't know how they came up with that bull. Link to comment Share on other sites More sharing options...
S70-R Posted February 5, 2016 Author Report Share Posted February 5, 2016 I said I will make a custom exhaust manifold whose design may be similar to ATP. I will not use their manifold as I know it doesn't fit. However, I looked at it better and I don't like their design so I will not take that design. Some runners flow against each other and then they have to do a 90ºC curve to go out through the T3 flange. Tubular manifold will be made for the purpose and the EWG will be taken into consideration when building the manifold of course. Link to comment Share on other sites More sharing options...
854TGA+ Posted February 6, 2016 Report Share Posted February 6, 2016 I ran Cat Cams for a couple years, produced good power with the GT3071 430whp Sold them to another VS member and he's happy with them. Sporting ENEM stupid expensive cams now. Link to comment Share on other sites More sharing options...
S70-R Posted February 6, 2016 Author Report Share Posted February 6, 2016 Thank you for your reply! Which one did you use? The more aggressive ones? And how much it was new? (they don't have prices on their website) Link to comment Share on other sites More sharing options...
Martijn_B Posted February 6, 2016 Report Share Posted February 6, 2016 Why would you go through the efforts of getting a custom exhaust manifold if the R manifold flows up to 600 horsepower? Link to comment Share on other sites More sharing options...
S70-R Posted February 6, 2016 Author Report Share Posted February 6, 2016 A GTX3576R will not clear the rear engine mount so doing something to the rear engine mount would also require a bit of effort. Furthermore, a R manifold can eventually flow up to 600hp but at what cost about EGT and EBP? Certainly the R mani is more restrictive than a tubular mani and that means higher EGT and higher EBP which means more engine risks and less chamber efficiency / less torque. And I admit I'm not aware of any project of 600hp using the R mani. If you can provide me further info about some project like that I would be happy. Link to comment Share on other sites More sharing options...
Modman Posted February 6, 2016 Report Share Posted February 6, 2016 25 minutes ago, S70-R said: A GTX3576R will not clear the rear engine mount so doing something to the rear engine mount would also require a bit of effort. Furthermore, a R manifold can eventually flow up to 600hp but at what cost about EGT and EBP? Certainly the R mani is more restrictive than a tubular mani and that means higher EGT and higher EBP which means more engine risks and less chamber efficiency / less torque. And I admit I'm not aware of any project of 600hp using the R mani. If you can provide me further info about some project like that I would be happy. I for sure wouldnt try to get 600 horses through a stock manifold. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.