Mark@Abbey M/S 235 Report post Posted September 29, 2014 Well finally ran a Stage 1 Avo Manual turbo car on our in house Dynapack today. Makes some interesting reading. All 3 cars had stock motors AVO was running a HFC in 2nd cat position HKS V2 kit was running a set of HKS headers with a HFC again in the 2nd cat position (still running restricted) Sprintex kit was running stock headers and primary cat 75mm pulley and a de-cat in the 2nd Cat position. all running 2nd cat back exhaust systems RED plot on the boost plot is the Sprintex SC boost curve good comparisons 1 chillismoke reacted to this Share this post Link to post Share on other sites
rob275 1817 Report post Posted September 29, 2014 So by the looks the HKS just tickles it for the win in my opinion, seems the Sprintex runs out of gas! Low end torque is a little higher. I guess we can see they each have their pros & cons. Share this post Link to post Share on other sites
Quixote 35 Report post Posted September 29, 2014 Sprintex looks good til 4500, then HKS overtakes It does show the lumpiness of turbo boost though....nothing until bam it's all there Makes me wonder what the Sprintex would look like with some nice headers (maybe like the Cossie ceramic coated ones) and a HFC in the 2nd cat position Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 29, 2014 The HKS has a nice curve and the Rotrex pays dividends at the top end, so you can rev it right out. Like it. Share this post Link to post Share on other sites
Kodename47 446 Report post Posted September 29, 2014 The HKS has a nice curve and the Rotrex pays dividends at the top end, so you can rev it right out. Like it. The HKS charger is a HKS unit, not made by Rotrex Also remember the HKS car has an aftermarket manifold which will help. 1 griffinnn reacted to this Share this post Link to post Share on other sites
Keethos 842 Report post Posted September 29, 2014 We allowed to know who's vehicles were in this test? I assume its Mark's and Mas', but who's turbo? Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 29, 2014 The HKS charger is a HKS unit, not made by Rotrex Also remember the HKS car has an aftermarket manifold which will help. Yep fair enough, did the faux pas of saying hoover instead of vacuum cleaner. I thought the power curve was more indicative of a centrifugal supercharger and the corresponding characteristics that you would expect. Share this post Link to post Share on other sites
GT86-Ian 351 Report post Posted September 29, 2014 The registration is on the dyno plot Keith Share this post Link to post Share on other sites
Kodename47 446 Report post Posted September 29, 2014 Yep fair enough, did the faux pas of saying hoover instead of vacuum cleaner. I thought the power curve was more indicative of a centrifugal supercharger and the corresponding characteristics that you would expect.I think the HKS system is slightly better than some of the other centrifugal systems at lower RPM. It would also be the only other option I would consider, better than the other 2 (or 3?) Rotrex kits and preferable IMO to the Vortech. Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 29, 2014 Yes indeed. I'm looking forward to trying Maz's car how he's revised the plumbing. Share this post Link to post Share on other sites
Keethos 842 Report post Posted September 29, 2014 Ah, sorry Ian, didn't realise that was your reg....genuinely thought that that was just there to say that had 2 other GT86's....didn't realise that it actually read GT06 Share this post Link to post Share on other sites
GT86-Ian 351 Report post Posted September 29, 2014 Thanks to Mark today, just wanted to get it out there what a stage one AVO turbo can produce so we can compare it with the other options. Share this post Link to post Share on other sites
Ade 517 Report post Posted September 30, 2014 The HKS charger is a HKS unit, not made by Rotrex Also remember the HKS car has an aftermarket manifold which will help. The manifold may help but the HKS still has a restrictor which can be bored out a little (or removed - not on a stock engine though) to give more power. Not sure on the limits of the stock injectors.... 300Hub? Share this post Link to post Share on other sites
Kodename47 446 Report post Posted September 30, 2014 The manifold may help but the HKS still has a restrictor which can be bored out a little (or removed - not on a stock engine though) to give more power. Not sure on the limits of the stock injectors.... 300Hub?Does removing the restrictor not change the characteristic of the curve? This argument can go both ways as you could say that changing the turbo or putting on a smaller pulley will also boost figures. I'm not trying to detract from the HKS, the V2 looks great, much better than the V1 and has good potential. It's also well priced at the moment. Share this post Link to post Share on other sites
Mark@Abbey M/S 235 Report post Posted September 30, 2014 We need to see what happens when we remove the restrictor. This together with a Sprintex charged car with a header fitted this will be done soon Share this post Link to post Share on other sites
Mark@Abbey M/S 235 Report post Posted September 30, 2014 The manifold may help but the HKS still has a restrictor which can be bored out a little (or removed - not on a stock engine though) to give more power. Not sure on the limits of the stock injectors.... 300Hub? The manifold may help but the HKS still has a restrictor which can be bored out a little (or removed - not on a stock engine though) to give more power. Not sure on the limits of the stock injectors.... 300Hub? More like 300/320 flywheel max for the Injectors and fuel pump. Share this post Link to post Share on other sites
Ade 517 Report post Posted September 30, 2014 I think the sprintex is a great kit but they all have their pros and Cons. I would assume some of the lower end torque on the HKS comes from the fact that it is being restricted so yes if you make the restrictor bigger i'd only expect to see and increase in the top end power. What you are saying is true but you can bore out the restrictor plate for free where as a new turbo will cost money and the Sprintex is already at full chat with the 75mm pulley. The HKS does cost £4.2k though.... Share this post Link to post Share on other sites
Ade 517 Report post Posted September 30, 2014 More like 300/320 flywheel max for the Injectors and fuel pump. So Maz's car is at about the limit? I believe he has the restrictor that comes with the injector upgrades. Share this post Link to post Share on other sites
Mark@Abbey M/S 235 Report post Posted September 30, 2014 I wouldn't say the Sprintex is flat out with a 75mm pulley. Can I ask why you come to that result that it is information Share this post Link to post Share on other sites
Keethos 842 Report post Posted September 30, 2014 The only thing missing from this test is an Avo & Sprintex combo, loved to see what that would look like on the Dyno....could you pair an Avo with an HKS charger? Is there enough room? 1 BOBEL reacted to this Share this post Link to post Share on other sites
rob275 1817 Report post Posted September 30, 2014 there are people on here running a 69mm pulley with gains so a 75mm pulley certainly isn't the 210's limit. Infact, it's rated to take a lot more through it if you wanted to. Share this post Link to post Share on other sites
Kodename47 446 Report post Posted September 30, 2014 The only thing missing from this test is an Avo & Sprintex combo, loved to see what that would look like on the Dyno....could you pair an Avo with an HKS charger? Is there enough room?HKS have a twin charged car.... Share this post Link to post Share on other sites
KevinA 695 Report post Posted September 30, 2014 Have always been a turbo man, but beginning to think that the GT 86 may well be better suited to a supercharger !! Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 30, 2014 Well a supercharger has less lag so it makes it easier to balance mid-corner. 1 KevinA reacted to this Share this post Link to post Share on other sites
Special K 442 Report post Posted October 1, 2014 Lauren, does that not depend where you are in the power/torque curve? Is that not reliant on the revs/what gear you are using? Spec K Share this post Link to post Share on other sites
