Turbo Comparison

[nissanparts.org]

Well I come from being an SR guy and now want to get my KAT going in my car. I Have been able to see lots of different setups and now wonder if I like how a GT2871r with the .64 ar then what should I look into for my KA?

Main setup is track with 3k-3.5k being ideal for peak boost to kick in. Dyno graphs are great if those of you out there with one are able to provide.

[Nismo_Freak]

That'd be a good turbo for the track, well a real track with corners in it.

[C-Kwik]

I figure that for the most part, a turbo that works well for an SR will work well on a KA and vice versa. The HP ratings are similar so I would expect the airflow rates to be as well.

[nismofly]

i asked about this exact turbo about a year and a half ago, when i decided to switch over

i was told to get a gt3071r, if fact Alan it was you that told me to get it

ive actually since decided to get a precision sc50, which from what anthony tells me is a ball bearing t3/t04e, pretty close to the same turbo and about half the price of the gt3071

[nissanparts.org]

I was very intrested in going T04 or GT30. Ile take a look inot the 30 series again for the KA.

[KATwo40]

I don't have time right now because I have to go to work, but this afternoon I'll plot a few different turbos for you on the maps. Then, you can decide.

[nissanparts.org]

Well I looked and I think the GT3071R with the .86 AR may be what I want... however would it lag too much compared to the .64 model or would the .64 fall off too early?

[952FourtyEssex]

Are there any turbos out there that can spool before 3k but still give a power out of say 300hp?

[Jookmasta]

str8 t3's can spool before 3K and give 300rwhp................

[Nismo_Freak]

Well I looked and I think the GT3071R with the .86 AR may be what I want... however would it lag too much compared to the .64 model or would the .64 fall off too early?

You will be looking at getting about 1 BAR at 4000 - 4200 RPM. Cut about 300 RPM off of that with the .64

[Nismo_Freak]

i asked about this exact turbo about a year and a half ago, when i decided to switch over

i was told to get a gt3071r, if fact Alan it was you that told me to get it

ive actually since decided to get a precision sc50, which from what anthony tells me is a ball bearing t3/t04e, pretty close to the same turbo and about half the price of the gt3071

The GT3071R is a nice turbo for any of the engines.

SC50 is decent too.

[nissanparts.org]

I am now looking for any graphs of a 3071r with a 64 ar and a 2871r on a 86 ar. Thanks for the info I now know i do not want a 86 ar on this motor when its a 3071r.

Only hard part about this project is finding someone who can build the motor that knows how KAT is different than SR.

I looked beyond the ovious fact of displacement but more towards how everyone out there seems to not have a mid to high power KAT for more than a while before a problems start to take place.

[nismofly]

comes up a lot, you hear a lot more about the people with troubles, because the people who are running fine dont sit around and go "my car still works" once a week

theres been plenty that are running 3 or 400 hp for several years and still going strong

build it right, good tuning, all it takes

most if not all of the people with problems cut at least one and more than likely many corners, and it comes back to haunt them

[nissanparts.org]

Thanks for your input. I am going to see how the machine shop and builder greg is using turns out for his vert then run the same setup maybe even more work just to be carefull.

BTW final choice is 2871 with the 86

[nismofly]

your only problem is going to be finding a manifold

unless your are either making your own or getting a jgs assemble yourself kit, you wont find any ka mani's with a t25 flange

the only other option would be to figure out where youd like a mani from, call the shop, and see if they can do one up with a t25 flange

[nissanparts.org]

I may do a hybrid motor *E motor bottom end with DE head* and if I do that I may just speak with jordan gladman and see what he can fab up for me. I think I saw a T3 flange version of the 2871 on ATP turbo's site but I cant seem to view the site on my work computer... If it wont go then I will just fix up a SSA manifold.

[nismofly]

yep Jordan will probably be able to do something for you too

why the hybrid though, all it really gets you is higher compression, which would be irrelevant and maybe even have negative impacts under boost

[WDRacing]

Higher compression and no piston squirters. The squirters really do make a difference by the way. Lube and cooling are key.

[nissanfanatic]

Yea.... I'd stick with just a stock bottom end KADE. You already know it all works well together...

[Chezedik]

your only problem is going to be finding a manifold

unless your are either making your own or getting a jgs assemble yourself kit, you wont find any ka mani's with a t25 flange

the only other option would be to figure out where youd like a mani from, call the shop, and see if they can do one up with a t25 flange

You are forgetting SSAC, or if you prefer the DC sports version (that they copied).