Turbo choice 600+whp

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turbo2nr
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Turbo choice 600+whp

Post by turbo2nr »

whats going on everyone? its been a while since i asked a question here but im back in the ka-t game and im re-doing my ka-t setup over the winter and i need help to pick a turbo.

some background:
motor built ka-t
wiseco 8.8:1 .20
crower i beam rods
cometic head gasket
arp 10mm head studs
ported head.
tuned hks fcon pro V
740cc nismo injectors
255intank

currently the car is on a gt3582r t3 .82 on 14psi makes 366whp .

goal: 500+pump / 600+e85

new setup:
full race manifold
new turbo
full race downpipe
tial 44mm wastegate
custom surge style intake manifold
90mm tb
new shorter charge pipes/flip i/c
-8/-6 fuel lines
top feed fuel rail
1000cc i.d. or possibly 2000cc
aeromotive fpr
dual bosch 044 pumps in line
fuel filter
surge tank
-6 an lines from fuel to surge to fuel pumps/ -8 to fuel rail.

so with my new setup and current engine setup up which turbo would be more efficient at making my hp goals at less psi:

im looking into the precision 6466 bb twin scroll .82 t3. also considering a 6766 t3 as well.

please let me know your opinions /reviews on either turbo and what you think would be best for my goals.
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RosadoRacing
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Post by RosadoRacing »

6262 will easily get you there a 6766 would be a better choice if you wanna make more power in the future but will be laggier on the street. !ut than again the 10mm head studs won't work well with a 6766
turbo2nr
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Post by turbo2nr »

yea 10mm head studs and the fact i dont have cams yet will be my limiting factor.

10mm arp's are good for around 25psi max right?
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Super Coupe
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Post by Super Coupe »

Why not up the boost on the 35r?

1000cc is not going to get you 600hp on e85. Go with I'd 2000s and be done, gives you room in the future.


Here are some setups u can look at.

viewtopic.php?t=4303


Btw I thought wiseco pistons were 9:1?
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turbo2nr
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Post by turbo2nr »

now that ive looked up my options i really don't have much choice since i already bought the full race manifold.

not much options for divided t3 turbos. so i think what i may have to do is but atp new 1.06 divided t3 housing and use it on my 3582r.

i think i can maybe squeeze 600whp out of this turbo on 30+psi and maybe 500+ around 20psi pump.

if not then i have to go with a no divided precision turbo.

yea the e85 thing is tricky i dont know what injectors to get that are good for pump/e85 thats over 1600cc, only thing is i.d.2000cc but it cost alot. i may just have to bite the bullet and do it.
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Post by RosadoRacing »

I used the old saturn style arp bolts that are rated at 190,000 psi and it lifted the head at 29psi 665whp I upgraded to the ka 220,000 psi bolts but have yet went back to the dyno. I'n building a new motor which I will use l19's cuz I dnt trust the 10mm. 1600cc injectors should be good for up to 700whp I read a few guys hit 800whp with the ev-14's which is what I have since you can bump the fuel pressure up higher then the crown vic's. They run more than half the price the id2000's go for
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Post by Kfred »

Brad D got 603whp at 33psi on a .63a/r gt35r.

I would slap your current turbo on the divided manifold. It won't spool as fast as a divided housing but it will make more power up top (assuming same a/r).
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turbo2nr
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Post by turbo2nr »

hmm so looks like my setup on pump gas i may be limited to 22-25psi, i hope i can make 500+whp on this boost level.

im going to change my back housing on my turbo to 1.06 divided t3 and see how i like it. if i dont make over 500whp on pump im selling that turbo and getting ither a non divided s366 or a 6466. with ither of those two turbos i should be able to make over 500 hp on less then 25psi pump and 600+e85.

for injectors im looking for good 1600cc injectors with good resolution down low for driveability. i really dont want to spend 1g on id2000cc but if i cant find the right injectors then i may have to.

my head studs are really making me thing if i can get more then 25psi before head lift. :/
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Post by BoBaCk1 »

Check kedbmx if I'm not mistaken he's still selling the id2000 with the right plugs for 670 shipped. Talk about a hook up. I know because I pm'd him recently and he's still selling it for that price. I just need to grab a set from him now lol.
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Post by Berserker »

1.06 a/r that's a little too big don't you think?
608 whp @ 27.25 psi powered by Precision6262
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turbo2nr
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Post by turbo2nr »

yea i remember he was selling them a while ago i'll pm him and see. thanks !

- since the manifold is divided you want a bigger ar housing, so a 1.06 will give me the flow i need with a divided housing. a smaller .84 it would most likely choke up on the upper powerband.
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Post by Legit6MT »

If I'm not mistaken efeezi was also on 10mm ARP studs and ran 40psi and made 775whp thru a C4 trans, but I think they are rare scenarios. You shouldn't be afraid to go past 25psi. Get a s372 :) it'll do just fine even on a street car
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Post by turbo2nr »

yea i think i should be ok on 30psi.

question:

is 2 external bosch 044 pumps overkill to make 600whp on e85 with id2000cc?
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Post by all shal perrish »

turbo2nr wrote:yea i think i should be ok on 30psi.

question:

is 2 external bosch 044 pumps overkill to make 600whp on e85 with id2000cc?
One walbro 460 in tank will do it, that's what I'm using same injectors too
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Post by RosadoRacing »

Nothing is overkill when it comes to fuel I have a 2000hp pump ill never max out but hey you never know if one day you buy a 2jz with a gt45r :)
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Post by turbo2nr »

^haha thats the plan after i have my fun with the ka.. its off to 1000hp 2jz land ;)
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Post by RosadoRacing »

I have a magnafuel 4303 pump and I love it! It wont burn out with normal street driving like my old a1000 did its about the same price of 2 044's
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Post by Super Coupe »

Legit6MT wrote:If I'm not mistaken efeezi was also on 10mm ARP studs and ran 40psi and made 775whp thru a C4 trans, but I think they are rare scenarios. You shouldn't be afraid to go past 25psi. Get a s372 :) it'll do just fine even on a street car
His head or block was o ringed also. Just forgot which one...
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Post by turbo2nr »

so what is the definitive answer to max psi on 10mm head studs?
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Post by RosadoRacing »

Psi is going to vary depending on the turbo. Theres ppl making 400whp on 30psi with
turbos. Heads lift from cylinder pressure my guess would be keep it under 700hp even 650 just so no coolant overflows. I have yet to race my car with 665whp but 580whp is very fast at least until you bring out the 2jz
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Post by turbo2nr »

yea i figured it varies with different turbo's 30psi on a 35r is very different then a 30psi on 42r..

ill keep "600whp or ~30psi" my safe limit for this 35r. i just hope this damm 1.06 divided helps me squeeze a little more power out up top.

i really wish now that i didnt buy a full race mani and just did a custom divided t4. i would be able to make 600hp so easily on 25psi with a 6766 -_-

. so much involved with making a 600whp car or maybe im over thing everything lol

-RosadoRacing , id love to see your car in person hopefully ill bump into you and the car next year at a track day or something
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Post by RosadoRacing »

I might race at englishtown this weekend for fall nationals if everything goes well
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Post by sdaigle240 »

how high you gonna take the boost on 93? i always seemd to think people didnt push it much past 22-23? i even catch the occasional eye roll with your running 18 on pump!?
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Post by turbo2nr »

yea 22-24psi pump or 500whp,

but honestly im leaning hard towards straight e85, given my setup i think e85 will be safest way to make 600whp.

id love to make big power on pump but it doesnt seem likely. i would be happy to make 500whp on pump
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Post by RosadoRacing »

Search for a e85 in your area. Theres one about 20min from my house i always fill the tank with 40 bucks and it lasts forever i dnt trust pump especially since u want 500whp take 3 5gallon containers fill em all up its a dollar cheaper than 93 :)
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Post by Walperstyle »

currently the car is on a gt3582r t3 .82 on 14psi makes 366whp
dude, the .82 AR Gt35R will be fine for you. Horsepower isn't created just by the turbo. Get a good intake and cams and this will take some stress off the turbo.
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Post by turbo2nr »

yea i know the 3582 will make 500whp but around 30+psi of boost., thats a little high for my taste.

the reason for the twin scroll is to make full use of the twin scroll manifold mainly and secondly to give the car a little more up top.

i plan on chopping my intake manifold up and making a better flowing manifold w/ velocity stacks. right now my stock cams are limiting me, ill probably do kelford 272 before i get a final tune , but im just trying to get the rest of the fuel system done first.
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Post by sdaigle240 »

turbo2nr wrote:id love to make big power on pump but it doesnt seem likely.
yup!! pretty much why i feel like i wont stay KA forever.
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Post by RosadoRacing »

Whats the big deal with running pump i wouldnt run that junk in my lawnmower run corn end of story run pump in the city shouldnt b street racing anyways if u cant.find corn run 116 every track sells it
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Post by turbo2nr »

e85 in nyc is getting more popular but still not readily available. i tend to drive the car alot and far when i do drive it so the last thing that i would want to happen is to run out of fuel and get stuck.

i dont really like the idea or always having 5gal extra of e85 with me, esp if im in the middle of no where.

this is where flex fuel would be amazing but aem v1 doesnt support it.

can you do a dual map on aem ( e85/pump?)
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