Weyro Posted June 18, 2013 Share Posted June 18, 2013 Just wondering if anyone can tell me the Equivalent Ball Bearing turbo to a TD04L.That would make equal power, but spool quicker and be more efficient.Cheers Quote Link to post Share on other sites
TrisK Posted June 18, 2013 Share Posted June 18, 2013 VF series are ball bearing dude and same flange as td04 Vf24 on left, td04l on right Quote Link to post Share on other sites
Weyro Posted June 18, 2013 Author Share Posted June 18, 2013 that was fast! haha thanks, so the vf24 would be the one to go for?still on standard internals running 1bar, dont have the cash for forging so thought id just improve the setup Quote Link to post Share on other sites
Jamie_VF22 Posted June 18, 2013 Share Posted June 18, 2013 There you go mate all the info you need to no VF22 This turbo has the highest output potential of all of the IHI VF series turbos and is the best choice for those who are looking for loads of top end power. The top end power however, does not come without a cost. The VF22 spools significantly slower than the rest of the IHI models due to the larger P20 exhaust housing and is much less suited for daily driving than some of the other models. Although the largest VF series turbo, the VF22 is not quite optimal for stroked engines or those who wish to run more than 20PSI of boost. VF23 This turbo is considered a great all-around turbo. Like the VF22 it utilizes the largest P20 exhaust housing. This housing is mated with a smaller compressor housing of the of the VF24. This turbo is considered optimal in applications with range from mild to slightly wild. It does not have the same top end power of the VF22, but spools up significantly quicker. VF24 This turbo shares its compressor housing with the VF23 however, this housing is mated with a smaller (P18) exhaust side. The smaller characteristics of this turbo allow it to provide ample bottom end power and quick spool. This turbo is very popular for Imprezas with automatic transmissions and Group N rally cars. VF28 This turbo came standard on the STi Version 5. In terms of overall size, it is smaller than the VF22, VF30 and VF34, and about same size as the VF23. VF29 This Turbo is nearly identical to the VF24, with the same compressor and exhaust housings. However the compressor wheel in the VF29 is has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such this unit is typically chosen over the VF24. VF30 The VF30 is commonly considered the best bang for the buck turbo in the IHI VF series line. A relatively new model the VF30 features the same exhaust housing as the VF24 but a larger compressor side similar to the VF22. The combination of these two parts results in increased output potential without the lag associated with the VF22. Although it doesn't offer the top end supremacy of the VF22, the VF30 is a great compromise between these unit and the quicker spooling models. VF34 The VF34 is nearly identical to the VF30, with the same exhaust housing and compressor. However the VF34 goes back to the ball bearing design, and in doing so achieves full boost approximately 500RPM sooner than the comparable VF30. The VF34 is the most recent IHI design and as such costs slightly more than its counterpart. Top end performance and maximum output are identical to the 30. VF35 VF35 The VF35 has identical internals as the VF30 and it uses divided thrust bearings. However, the exhaust housing is a P15 which means this turbo will have fantastic spool characteristics. This turbo is standard on the new WRX Type RA. LIMITED SUPPLY. VF36 Roller bearing version of the twin scroll VF37, also has a titanium turbine and shaft for even quicker spool. Same compressor housing as VF30/34, however twin scroll P25 exhaust housing provides slightly better top end output due to reduced exhaust pulse interference. This turbo is good for 400HP and used on JDM STI Spec C from 2003 onwards. VF37 (thrust bearing) Enter the age of twin scroll IHI turbos. Same compressor housing as VF30/34, however has a new twin scroll P25 exhaust housing that provides slightly better top end output due to reduced exhaust pulse interference. Twin scroll also provides better spool up for improved low down response over the VF30/34. This turbo is good for 400HP and used on JDM STI from 2003 onwards. VF38 Twin scroll turbo with titanium turbine and shaft. Smaller compressor housing than VF36/VF37 provides tremendous spool up capabilities but less top end than VF36/37. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at 2400RPM. VF39 Single scroll turbo used on USDM STI and latest 2.5L STIs released internationally. Smaller than VF30/VF34. VF42 Exclusive turbo to the S203/S204 models, this features a twin scroll design with a slightly larger compressor than the VF36/37 turbos and different turbine design (more blades). The VF42 is a roller-bearing turbo and is likely of similar size to the VF22 turbo, but with twin scroll exhaust housing for faster spool and superior top end performance due to reduced exhaust pulse interference. Quote Link to post Share on other sites
Weyro Posted June 18, 2013 Author Share Posted June 18, 2013 awesome bit of info there! thanksso a VF24, or 29 would be the best bet? Quote Link to post Share on other sites
yaristurbo Posted June 18, 2013 Share Posted June 18, 2013 Md555 same flange, alan e was running one Quote Link to post Share on other sites
DevonGT Posted June 18, 2013 Share Posted June 18, 2013 If your only going to run 1bar, you'd be better off with some sort of ct9 hybrid. Quote Link to post Share on other sites
TrisK Posted June 18, 2013 Share Posted June 18, 2013 If your only going to run 1bar, you'd be better off with some sort of ct9 hybrid.1 bar on ct9 = 200bhp1 bar on td04 = 230ish Quote Link to post Share on other sites
DevonGT Posted June 18, 2013 Share Posted June 18, 2013 Correct but he wants quicker spool. Quote Link to post Share on other sites
Weyro Posted June 18, 2013 Author Share Posted June 18, 2013 i think id miss the top end pull of the td04 too much, im only trying to improve my current setup, im not desperate for instant spool Quote Link to post Share on other sites
DevonGT Posted June 18, 2013 Share Posted June 18, 2013 The vf24 would be the closest to a td04, but even that would spool around 500rpm later. Quote Link to post Share on other sites
Weyro Posted June 18, 2013 Author Share Posted June 18, 2013 500 rpm later than a td04? or a ct9? Quote Link to post Share on other sites
daniel_g Posted June 18, 2013 Share Posted June 18, 2013 I was originally wanting a VF series but i'll see how the TD04 is first. Bare in mind but, VF turbos are quite expensive and some are hard to get hold off because certain VFs were originally on JDM S203 Imprezas and what not. Quote Link to post Share on other sites
Weyro Posted June 18, 2013 Author Share Posted June 18, 2013 the td04 is great, combined with my EVC4 im getting a bar at around 3400rpm only reason im looking into another turbo is to squeeze the little bit extra out of the setup Quote Link to post Share on other sites
The Toffinator Posted June 19, 2013 Share Posted June 19, 2013 VF24s are the smallest impreza fitment VF turbos. Rare to come by and you cant rebuild them if they go wrong. Can be expensive too! Im running one and its properly mint, full boost on my standard engine is 3900, pull is savage! Quote Link to post Share on other sites
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