tm_r33 Posted April 15, 2008 Share Posted April 15, 2008 hey all, as some of the tassy boys will know, im building up my hybrid 25/30DET as we speak. Now i am stumped as to what turbo to use. i am aiming for 300+rwkw and the car needs to be streetable. it prob wont be my every day car but will be driven on the road often. so a big laggy sucker isnt really ideal for me but in saying that i dont want a turbo thats too small and has no punch. Responsivness is prefered but would like to have a bit of punch on boost. The engine specs are as follows: rb30 bottom end knife edged stock crank shot peened standard rods with arp bolts wisco 20 thou over pistons acl race series bearings all rond ported and polished rb25det head stock cam shafts new/upgraded springs and valves etc after market ecu (unsure what one yet) bosch 040 500cc injectors z32 afm forward facing plenum (unsure what one yet) fmic 3.5 inch turbo back exhaust or there abouts Now i will be chucking the turbo on a high mount manifold with an external gate and hope to run about 18 psi. would like to hear what turbo setup you guys recomend for me as my knowledge in turbo selection is lacking lol. cheers james Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/ Share on other sites More sharing options...
dangerman4 Posted April 15, 2008 Share Posted April 15, 2008 gt3582r .82 ar 18psi by around 3.5k and around 350kws easily Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797298 Share on other sites More sharing options...
blitza Posted April 15, 2008 Share Posted April 15, 2008 HKS 3037 or TO4Z... Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797311 Share on other sites More sharing options...
PM-R33 Posted April 15, 2008 Share Posted April 15, 2008 (edited) I dont think you can go wrong with anything around the GT35 range (either a GT3540 or something slightly smaller, GT3240), they will easily give you the power you want (rated around 600-700HP) and beyond and being a 3L this gives you the displacement to spool it up quickly. Quick edit: Just noticed you have 500cc injectors, are they actually 500cc or nismo 555cc injectors? Either way, if you want to go much over 300, say 330ish, id probably recommend 740cc injectors just so you arent running the 500cc on such a high duty cycle. Edited April 15, 2008 by PM-R33 Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797325 Share on other sites More sharing options...
700HP-GTR33 Posted April 15, 2008 Share Posted April 15, 2008 What size is your intake? What size is your FMIC? What is the displacement of the finished motor? Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797332 Share on other sites More sharing options...
PM-R33 Posted April 15, 2008 Share Posted April 15, 2008 (edited) HKS 3037 or TO4Z... .....bit of a big difference in turbo recommendations dont you think? Ones rated at 500HP the other at around 800HP.... Edited April 15, 2008 by PM-R33 Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797339 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 Just noticed you have 500cc injectors, are they actually 500cc or nismo 555cc injectors? Either way, if you want to go much over 300, say 330ish, id probably recommend 740cc injectors just so you arent running the 500cc on such a high duty cycle. point taken.. i will look into bigger ones Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797353 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 (edited) to4z... bit big maybe??? i assume displacement should be quite close to 3 liters?? 600x300x75 we will say for now about fmic (havnt purchased yet) exhaust and fmic will be 2 of last things i get as i want the piping to have clear path so will install motor etc first. Edited April 15, 2008 by tm_r33 Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797356 Share on other sites More sharing options...
PM-R33 Posted April 15, 2008 Share Posted April 15, 2008 to4z... bit big maybe??? Yeah, dont bother, if you want a bit of response on the street on the setup, dont look at anything much past a 3540 IMO. Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797359 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 gt3582r .82 ar 18psi by around 3.5k and around 350kws easily thats the power i am hoping for and boost by3.5 would be just fine have u used this turbo personally? any one with arguments against? Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797386 Share on other sites More sharing options...
Kaido_RR Posted April 15, 2008 Share Posted April 15, 2008 Yeah, dont bother, if you want a bit of response on the street on the setup, dont look at anything much past a 3540 IMO. you do know that the T04Z comes in a range of rear housing. you would easily make good power and responds with the 63T A/R0.61 on a 3L Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797391 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 you do know that the T04Z comes in a range of rear housing. you would easily make good power and responds with the 63T A/R0.61 on a 3L sorry this means not heaps to me... please elaborate in dummy language lol Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797411 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 what is the .61 actually a measurement of?? before this thread i was leaning toward a gt3540 and seems maybe still the way to go?? am i right inassuming .81 is a bit big if response is desired??? excuse my ignorance guys. never had to look into bigger than standard turbos before Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797434 Share on other sites More sharing options...
700HP-GTR33 Posted April 15, 2008 Share Posted April 15, 2008 http://homepage.ntlworld.com/tbroom/Turbos.htm You will need to match all your pipping for a good responsive turbo... Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797483 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 http://homepage.ntlworld.com/tbroom/Turbos.htmYou will need to match all your pipping for a good responsive turbo... as in keep it all same diameter?? Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797551 Share on other sites More sharing options...
NYTSKY Posted April 15, 2008 Share Posted April 15, 2008 +1 GT3582 Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797562 Share on other sites More sharing options...
sven Posted April 15, 2008 Share Posted April 15, 2008 3540 .61 zorst housing dude. Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797575 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 +1 GT3582 3540 .61 zorst housing dude. ok im guessing these are essentially the same turbo with different exhaust housing sizes??? one is .82 and one is .61??? will the .82 mean more lag????? Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797636 Share on other sites More sharing options...
NYTSKY Posted April 15, 2008 Share Posted April 15, 2008 Nope.One is a 3040 the other a 3540 3040 is about a 600hp turbo 3540 up to about 750hp depending on housings. Wouldnt go smaller than an .82 on a RB30 Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797699 Share on other sites More sharing options...
tm_r33 Posted April 15, 2008 Author Share Posted April 15, 2008 Nope.One is a 3040 the other a 35403040 is about a 600hp turbo 3540 up to about 750hp depending on housings. Wouldnt go smaller than an .82 on a RB30 so the one with the .61 is actually a gt3050 not a 3540??? and the one with .82 is the 3540??? Link to comment https://www.sau.com.au/forums/topic/215037-what-turbo/#findComment-3797754 Share on other sites More sharing options...
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