MattyP MattyP Cruise Control 6,317 Member For: 11y 11m 16d Gender: Male Location: Central Coast Posted 27/02/17 12:44 AM Share Posted 27/02/17 12:44 AM Just looking for a chat about turbos @sixman has been through a few. Whats your thoughts on all your turbos soo far? Link to comment Share on other sites More sharing options...
sixman Donating Members 593 Member For: 19y 8m 29d Gender: Male Location: Hills District, NSW Posted 27/02/17 04:25 AM Share Posted 27/02/17 04:25 AM Ok, I think I have talked about this before on another thread. Couple of points - no point have big power without supporting mods, including driveline and tyres. My car is a daily street manual. P98 only, E85 is not easily accessible for me. Stock turbo - lasted 5k km before being ditched. PTE6235 with ported stock rear housing 450rwkw 21psi. A great street turbo which will push the limit of stock internals. The mid-range is incredible. Makes nice noise as well. As a cost effective street turbo you dont need anything more than this. GTX3576 with ported stock rear housing. 390rwkw. Spools 400-500rpm quicker than the PTE and definitely feels stronger under 2750-3000rpm. But, after the PTE, this turbo just felt slow and boring. EFR9174 with BW 0.83 rear housing. Way more expensive and requires more mods to fit. The other turbos look and feel like toys compared to this, the quality is unmatched. The IWG on the rear housing is a much better / more efficient design. 420+rwkw, but didnt get a comparable dyno reading to the others as was run with r888's on the back. (As an example I saw 60rwkw more on the PTE with street tyres 390 to 450rwkw). This is on pump98 at 20PSI. This thing spools quicker than the baby gtx, pulls harder in the midrange than the PTE and just keeps going. The end turbo for me! Link to comment Share on other sites More sharing options...
sixman Donating Members 593 Member For: 19y 8m 29d Gender: Male Location: Hills District, NSW Posted 27/02/17 04:51 AM Share Posted 27/02/17 04:51 AM I should add the GTX gen2 turbos look good. I have not seen much feedback with them in the barra mix. Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 12y 4m 20d Gender: Male Location: WA, Perth Posted 27/02/17 07:32 AM Share Posted 27/02/17 07:32 AM I can only comment on two turbos. The stock standard turbo that comes with the FG. Stock standard they are alright from factory. Once you get it tuned though, it feels a lot more alive. only downside I had was that it lasted two years after mods and tune before the rear housing cracked. I now have the GTX3576r on there and it seems lagier than the stock standard turbo, it does however have more power and those legs really get stretched at the top end of the rev range. I could be wrong about the lag, but I can say that I have actually sat down and looked at both my dyno charts. I am gauging it all by the butt in the seat meter. Link to comment Share on other sites More sharing options...
sixman Donating Members 593 Member For: 19y 8m 29d Gender: Male Location: Hills District, NSW Posted 27/02/17 08:26 AM Share Posted 27/02/17 08:26 AM Did you do other mods when changing to the gtx? Just a dump/cat/exhaust will make it laggier. Forgot to say I had the stock turbo with supporting mods and a 320rwkw tune. Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 11y 11m 16d Gender: Male Location: Central Coast Posted 27/02/17 09:14 AM Author Share Posted 27/02/17 09:14 AM Interesting the efr spool time considering the sheer size of the thing. How much did the borgy set you back? Link to comment Share on other sites More sharing options...
rednose RNS10S Donating Members 2,229 Member For: 17y 8m 3d Gender: Male Posted 28/02/17 12:22 AM Share Posted 28/02/17 12:22 AM What's the difference between the 9174 and the 9180? 20 hours ago, sixman said: 420+rwkw, but didnt get a comparable dyno reading to the others as was run with r888's on the back. (As an example I saw 60rwkw more on the PTE with street tyres 390 to 450rwkw). Mine with the PTE6235 went 476rwks on the same dyno with r888's 25psi tappering down to just under 23psi Link to comment Share on other sites More sharing options...
masda74 To Loud Gold Donating Members 4,112 Member For: 12y 4m 20d Gender: Male Location: WA, Perth Posted 28/02/17 12:43 AM Share Posted 28/02/17 12:43 AM 16 hours ago, sixman said: Did you do other mods when changing to the gtx? Just a dump/cat/exhaust will make it laggier. Forgot to say I had the stock turbo with supporting mods and a 320rwkw tune. I have the xforce 4" dump into a 5" cat. Then a custom split 3" cat back Xforce XR8 system http://imgur.com/a/UWsdK ID1000 injectors, PW stage 2 IC, surge tank. I think that is some of it, not all. I hope I have all the supporting mods. Link to comment Share on other sites More sharing options...
sixman Donating Members 593 Member For: 19y 8m 29d Gender: Male Location: Hills District, NSW Posted 28/02/17 01:34 AM Share Posted 28/02/17 01:34 AM Nice exhaust. If it was new with the GTX, that reduced back pressure maybe why it feels laggier compared to stock turbo. 1 hour ago, rednose said: What's the difference between the 9174 and the 9180? Mine with the PTE6235 went 476rwks on the same dyno with r888's 25psi tappering down to just under 23psi 74 and 80 refer to the turbine wheel size. The 9174 has the smaller turbine wheel from the 8374. Was chosen for quicker spool. Mines a manual on pump fuel, presume at 25psi that run was on E85? I bet it would have made more power on the dyno with different tyres. We thought there was something wrong with the car for a while, until changing tyres, the r888's were pretty new at the time. 16 hours ago, MattyP said: Interesting the efr spool time considering the sheer size of the thing. How much did the borgy set you back? Think it was around $2800 delivered with rear housing 2 Link to comment Share on other sites More sharing options...
rednose RNS10S Donating Members 2,229 Member For: 17y 8m 3d Gender: Male Posted 28/02/17 01:44 AM Share Posted 28/02/17 01:44 AM I agree, r888's are very soft Regarding the EFR, I heard a while back that there were issues with overspinning the turbo but not sure if it was the 74 or the 80 I wouldn't mind trying the 8374 on e85, I reckon that would be the ultimate street turbo. I'm starting to get a bit of smoke coming from the exhaust when coming to a stop at traffic lights so the 6235 may need an overhaul. As much as I'd like to try the Borgy, I really like the 6235 6235 has done around 100,000 klms now so it has matched the reliability of the stock turbo. Link to comment Share on other sites More sharing options...
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