evo7_8u

will do man , its got a beautiful 3inch anti-surge cover .I'll keep ya's updated.

JSPturbo

This is my VD Graph with a TD06 25g Kinu, Jun 264º Cams,PTE 880cc,Downpipe and Full Exhaust 3",MAF and intake 80mm, E85 and 26 psi of boost. I have to adjust the AFR better and replace the fuel inyectors for 1000cc or 1200cc.

VIIIdriver

iTrader: (11)

That looks about right,nice numbers.

JSPturbo

Thanks !!! This Cams make it the turbo lag about 4000rpm. Maybe with a CamsGears improve torque in the mid range. Still I'm pretty happy with the results !!

Matt K

Hey, names matt.... ill introduce myself more formally later but i need a question answered... sorry if its off topic/ hijacking the thread

the aim is 400kw at the wheels (540bhp) on the rebuilt/forged evo 4 4g63 with supporting mods.

currently bolted to the side of the engine on a custom twin scroll manifold is a td06sl2r-25g turbo with acutator and internal wastegate removed... external wastegate setup. one of these http://kinugawa.co.nz/product/td06sl...4-9-antisurge/


now that it can flow over the quoted 18psi/500hp rating, are these turbos capable of flowing the boost pressure needed to make 400kw without running out of puff at high rpm?

hard one...

RSMike

iTrader: (1)

Apparently Leon's time attach evo made over 400kwatw on one of these.
Make sure you're running a high flow oil feed from the oil filter housing, or you'll kill it pretty quick.

Overall comment - Combo's make power, not turbo's.

If everything isn't up to spec, and it isn't tuned right - You'll be struggling to make your power goals.

Matt K

well ahead of you there on that... thats why i mentioned "supporting mods, built engine"... thought it would save me from having to write up all the boring crap.

leon runs a holset hx40 btw.

in a perfect world... if i knew the formula to calculate what turbo, how much boost to apply, where abouts in the reigon id want my powerband to be to make 400kw at the wheels, i wouldnt be disturbing people on forums

but, i dont so bleh...

VIIIdriver

iTrader: (11)

FYI guys,Leon had a Kinugawa 25G that put down over 500hp on a fully built 2.3l engine,just recently he switched to a Holset turbo,My Kinugawa 25g already put down 510hp and 472tq at 24 psi on a fully built 2.4LR,so i know the turbo can flow good numbers,and i still haven't put on the billet blade or ran e85 at high boost yet,can't wait!

VIIIdriver

iTrader: (11)

Good point on the feed line,i bought the oil feed line from them too just to be safe

VIIIdriver

iTrader: (11)

Sounds like you're on the right track,i did the same wastegate mod and went external wastegate,a highly recommended upgrade imo.

honda-guy

iTrader: (55)

got my TD06 20G for sale here. gave noticeable top end increase over stock turbo.

https://www.evolutionm.net/forums/sa...20g-turbo.html

gabedude

Kinugawa is making great upgrades. Mine will be going in once I finish my wife's STI 100K maintenance (motor is already on a stand, GR timing belt, Gates WP, CCI Stage 2 clutch, CCI 15 lb flywheel, and new plugs), on stock turbo 340WTQ/310WHP.

Mine is ditching the 20G (motor was built nearly brand new with CP pistons) and along with the turbo are ARP head studs, OEM head gaskets, custom teflon lined -6 AN fuel system with fuelab regulator, Stage 4 CCI clutch and 15 lb flywheel, new FMIC couplers, switching to SD tuning, fully ported, gasket matched, and heat coated GS manifold to turbo).

Current parts are 3 inch TBE, 1100 CC FIC injectors (may upgrade to 2200s if I need them for running E85 as well as the Aeromtive stealth pump), TXS FMIC, TXS RFL 50/50 BOV/BPV, GS pulley, custom PCV / catch cans, CP ceramic topped pistons and coated sides, Aermotive stealth FP, AP parallel rails, AP downpipe, 3 inch CBE, Innovate LC1 WBO2, GS X-pipe, Nvidia up-pipe (being replaced with G/S up-pipe), custom 83MM intake made from blow tru MAF pipe, and a ton of other mods I forget.

This was the Blouch TD05 8CM^2 20G on 750CC's with E85 (you can see when the injectors go static):



New turbo pics (3.25 inch surge ported (83mm) 8cm^2 TD06SL2-STS+25G-GTX(5+5)), click icon for full size:



I need to hurry up and finish my wife's car (Stage 2+ 06 STI) so I can work on mine (07 money pit STI).

BTW: The IWG port is 25mm, and the turbine housing is bored out to 55mm to accommodate the TD06-SL2 STS wheel (11 blades). It is still a small A/R @ .57 or 8CM^2, but I want the low end TQ and only plan on holding power flat past 6K RPM. Again, its a Subaru EJ257, so it does not flow as much air on the stock heads as your EVOs do.

Matt K

now that it can flow over the quoted 18psi/500hp rating, are these turbos capable of flowing at least 35 psi? without running out of puff?

dumbest question in the world, but i dont want to spend 600 for a dyno tune only to have a maxed out turbo. then go home feeling unhappy, having to spend 3g more or less to switch to switch to a different turbo setup.

do it once, do it right - right?

and to try and get a more straight forward answer...

I swapped a skyline r34 gtst, to aquire this evo 4 as is where is, specs as follows...

my current setup is 319Kw at 25psi on factory ecu, forged internals with manley 2.1 stroker rods, precision 1000cc injectors, 272 cams with 11.5mm lift, sard aftermarket fuel reg and deatschwerks 300lph fuel pump, among other boring things

lag to the death, kicks in around 5500-6000rpm..

will have other supporting mods soon - microtech lt10s ecu (i swear by these ecus - made 370kw at 30psi on bp 98 on evo 3 with garrett gt3582 setup) a bigger fuel pump and maybe a beefier ignition setup. definitely will run gull e85, cheaper than 98 here... so why not?

yeah anyways...

now that it can flow over the quoted 18psi/500hp rating, are these turbos capable of flowing at least 35 psi? without running out of puff?

gabedude

That all depends on the compressor map. Mitsu style compressor wheels usually have a mid-high 20's sweet spot before just becoming a hair dryer. If you want more boost and the highest flowing Kinugawa turbo has to offer, you would want the 60-1 Garret wheel. If you are still 2.0L, it is going to be pretty laggy though; even on a 2.5L it is too laggy for my tastes. You would be better off IMHO with a Garrett GTX35R with a small A/R. It will be more than twice the price, but it will spool faster and you can crank the boost into the mid 30's.

So start looking into compressor maps and size your turbo and response accordingly. For example, I wanted a small A/R turbo for low end TQ, but I have the large 25G billet wheel to try and slow down the TQ drop as RPMs climb.

VIIIdriver

iTrader: (11)

I spoke to a Kinugawa rep and they said this turbo can do 36 psi no problem,also with the billet blade it should be even better at high boost.