V8 Eater

Hey guys I know many of you are gonna say SEARCH but Iam trying to find fresh ideas with latest tech.What I hope someone can answer is can the new VNG(some call it vnc,van,vnt)honeywell turbo be used on a b20z engine? This turbo is the variable turbo used on the newer Porsche Turbo. I have found one off of car-part.com for $1100 and think it should do since there are 2 serving the 3.6 engine which means each is good for 1.8lt? what I really want if this aint possible is a b20 set up that is smooth,quite,none to least lag and efficient but I just dont know what turbo to use,I dont want to use something waayyy too small and yes Iam ready to sacrifice from topend.my goal is not max whp or top speed-1\4 mile but rather responsiveness efficiency and torque.all I want to have is an itr cat and catback+intake to keep the car quite.the car is an eg vx with a 01 b20z with ls intake manifold and ecu.it dynoed 137whp and 129wtq hopefully I can get an extra 50-70whp and tq

boostedcivicsir

what flange is on the inlet of the turbo? is it worth the extra cost to have an odd inlet flange and possibly make it a little harder to facilitate a turbo manifold?

a small t3t4 will get you to your goal with plenty of responsiveness. and have a common footprint for a standard manifold design.

V8 Eater

Thank you! but what I wonder is how does the variable turbo decide when to close or open the adjustable vanes with in it?I mean is it pressure or sensors?what do I need to do to be able to use it?I can and am ready to spend lots if its possible the manifold costumizing is not an issue.If for some reason I cant use the vgt,how quick do you think the t3t4 would spool?what kind of gains do you think I would get?

K i l l a B e e.

iTrader: (3)

if you're just looking for 50-70whp i would not spend 1100 on a turbo. a ssimple small t3/t4 would work. i was at 205whp on 10psi fully spooled at 3500rpm on my sohc turbo.

also i was wondering why your goals were so low for a b-series setup?

Schister66

If you're not looking for much of a gain, grab a T3/T04e 50 trim and run that. Hell, you could probably get away with a T3 Super 60 .63ar. That would spool almost instantly and be a torque monster. There's really no need to go with a variable vane turbo for your setup when several other things will work.

V8 Eater

thanks guys for your reply but the main reason I want to go with a vgt is due to the fact that its the best of both worlds both very responsive and lag free at the low revs and capable of high boost and good efficiency at high rpms.the only problem is making it work.I mean I would rather have a proper kit that costed 3grand that fits my needs and lasts long then some 15year old rebuilt turbo that lasts a year that spools late off of ebay.

V8 Eater

And to why I am only after 50-70whp extra is cause I want it to be quite so I plan to utilize a itr exhaust which would choke any bigger turbo anyway,plus like I said Iam after efficiency aswell.I have a neighbour with a gsr turbo who claims he makes 260whp but its wayy to loud,vibrates,spools late,drinks gas and only enjoyed when in high rpms,raced and down shifted.While my b20z already is very quite,smooth and very efficient when compared,all I want is a little xtra.I drive around 100miles a day on country roads %95 of that time at speeds between 45-75,I love to pass trucks w\o downshifting and to much effort which this b20 already does.the gsr-t gets 18mpg when I drive faster and harder and get 33

White.:R32

gas is cheap.

ITR-EKcoupe

maybe a supercharger? i know you said efficient which a supercharger really isnt. but its a really driveable power. my buddy has a JRSC on his GSR on stock exhaust and its super torquey and not loud at all.

V8 Eater

bro paying 18mpg for a civic when 33 is possible doesnt make sense no matter what,I mean the whole sense behind the import market is high output high mpg, if your ok with 18mpg on easy driving you might aswell buy a wrx or rx7=cooler,faster,rarer easier to tune.but unfortunatly the civic market is for guys who are smart and get both good mpg and output.and for the supercharger i have thought of it but was told they arent good top end,wine and arent efficient since they consume half the power they produced but thanks man for the advice.

Schister66

After buying the variable vane turbo and the rest of the setup, you'll spend well over $3k. Hell, a normal setup is going to cost that much. Also, I'm not sure you've considered this or not, but i would imagine that there is some odd method of controlling that turbo that isn't offered in any of the programs for our cars. I would check into that before moving forward.

By the way, whether you're using a variable vane or a 50 trim on your setup, you wont tell the difference. It isn't a 15 yr old turbo off Ebay...it's a new turbo from Garrett. If you're really this concerned and don't think the 50trim can meet your needs, look into the GT2860r. It will be more than enough for your goals...

SovXietday

If you're only looking for 50-70whp, then just put a supercharger on it. Cheap, easy to maintain, etc. I wouldn't waste my time putting together a turbo kit for something as easy as that, plus, the supercharger sounds cooler.

Schister66

blasphemy!!!

V8 Eater

well I cant see my self over 3 grand for this set up 1100 for the turbo(obviously used) 900 for a equal manifold and a grand for i\c+piping+tune would not only be an awesome setup but also new,as for blow off valves and wastegates you dont even need one with these turbos and for useability that is why Iam here If indeed you need complicated control systems then yeah Ill go with a 50trim but why shouldnt I investigate what if this thing self adjusts some how buy pressure and It needs no special extra labour at all wouldnt it be awesome to have this unit I mean the 3.6 used in the porsche turbo makes 500lb of tq thats around 275 at 2lts of displacement at 2000rpms man I really really doubt any 50trim can do that.I should be realistic with numbers since this is a factory tuned Porsche but even with soo much loss i really believe it would kill a 50trim of any type

Schister66

If you try to make any more than about 250wtq, you're going to crack a sleeve on your B20. I agree that the 50 trim can't post numbers like that, but first of all, it's a totally different engine than the Porsche. Secondly, trying to make that kind of power sounds like fun, but in reality there is no way for you to control that in a FWD platform. Also, the stock sleeves and piston ringlands aren't going to be having much of that power for long. The way i see it, you lower your goals to something attainable with a stock B20 OR you end up having catastrophic engine failure while attempting more power.

ITR-EKcoupe

efficient not really but it definitely doesn't consume half the power. the whine is super cool sounding and its really not that loud. as for the top end i found you could feel it fall off a bit nearing peak RPM but till then it pulled really hard.

K i l l a B e e.

iTrader: (3)

so what is your hp goal? you say 50-70whp so im assume ~200-220. A gt28rs would be perfect match with some room for more when you want. It's a fast spooling turbo and it's ball bearing.

V8 Eater

ok well lets say I go with a different turbo which is better for the goals I have a straight t3 a t3/t4 a gt2560rs or a gt28rs and if costum built what should be picked for a.r and trim should I go for the ball bearing and ceramic coating options? which of these turbos whould have a linear,smoother pickup with least lag?

Jayman_Gsr

I have a t04e 50trim (journal bearing) and I can be at 2k in 5th and floor it and it will build boost, I hold it half throttle while shifting and it stays spooled...I don't know what max is quite yet due to the fact I need a tune and dont want to blow the engine due to the turbo basemap I made with crome

Schister66

The GT28rs will spool almost instantaneously on your B20 whenever you're on the gas. It also has the flow to make more power than you're looking to make. Ceramic coating will keep underhood temps down and theoretically increases the efficiency of your turbo by a little. A B20 with that turbo would feel like a really healthy, large displacement NA engine. You'd have a linnear torque curve (until head restriction killed flow) and a fairly linnear powerband.

V8 Eater

the only reason I have doubts about a gt28rs is cause garret says its the turbo that mini uses for its new mini as a turbo upgrade from altaminiperformance and there map states a little loss from 3grand and under when compared to its stock turbo?

wilham320

iTrader: (1)

I would get a hks cast t25 manifold and pick up a greddy 15g/19t or a gt28r. Both would spool stupid fast, and would supply enough air for 250hp (19t is good for ~300) I like bushing turbos better just for the fact you can rebuild them...

V8 Eater

guys please state which and why I should use a t3 a t3/t4 or a gt28rs. equal or log manifold,cast or ceramic and what type of management and should I change the ls intake manifold and tb with something like an edelbro and itr tb? should I change the stock b20z cams remember my goal is low-mid or atleast linear than topend spikky

SOHCD16y8

A disco potato on a b20 will spool so fast it will blow your mind!