s14 vs. 300zx tt

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turbo2nr
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s14 vs. 300zx tt

Post by turbo2nr »

on a local hi way going to the g/f crib. i see a 300zx with a single n1 exhaust gauges ect.. i roll up next to him, he punches it and takes off a little and blows off.. guess he wants to play..

we go down to 60 im in 3rd, after 3rd honk we take off, i pull 1/2 car to 4th, then i start to stretch it on him, by 100 im about 3 cars ahead, by 5th around 120 im about a good 5-6 cars ahead.. not sure if he let off

cool guy he pulls up to me after wards give me the thumbs up, askes me how much psi i was on, i tell him 11.. hes tells me hes on 18psi..

guess its not a bad kill
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Post by R34SR »

nice kill.

My cousin bought a z32 from japan , pretty fast.....makes me even sadder that im still not boosted!
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TinyT wrote:for the love of god, post your setup, do you really think you can get an answer after saying HI ME CAR HAS TURBO NOW BUT I CANT BWAAA PSHH WITH IT WHATS WRONG
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Post by sdaigle240 »

haha u didnt tell him T4, he prolly felt so incompetent.
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Post by kentoJDM240 »

Wow, I would atleast think it would be 1-2 cars away at 120.. I know those Twins kick in alittle late.. Fast car gongrats on the win :D !
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Post by nismoz »

with supporting mods a 300zxtt @18psi should be upward of 500hp at the flywheel(maybe 540ish),I don't know but i'd guess an assumed 300whp 240sx wouldn't handle that,also most stock 300zx t25's want do but 17psi max and there's not enough fuel from the 370's so they'd have to be 550's or better unless this kid was just trying to make you think he had something other than a stock tt? not doubting your car by any means only doubting the kid you raced.
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Post by sdaigle240 »

humm. we got a 18psi tt with injectors and exhaust in town. gets destroyed by 350ztt 378whp and t3/t4 on 13 psi 240 keeps with it.
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Post by R34SR »

its posts like these that make me feel noob....ive a ton of car experience, worked on so many different kinds of cars esp my 240 but ive never ridden in a turbo ka..... :oops: which means i cant contribute to any threads that have to do with real feel performance of ka-ts....all i do know is i get very excited when you guys say a ka on such low psi can hang with those kinda cars putting out those kind of numbers.

power to weight rules.
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TinyT wrote:for the love of god, post your setup, do you really think you can get an answer after saying HI ME CAR HAS TURBO NOW BUT I CANT BWAAA PSHH WITH IT WHATS WRONG
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Post by turbo2nr »

well like i said i dont know anything about that z except what the guy said. i did notice that it would let out a puff of black smoke when he got on it, im sure he had to be running bigger injectors the amount of black sud from his exhaust.

as for a 300zxtt being 500hp on stock t25 i find that very hard to believe, i have 3 friends that have 300ztt two with stock t25 supporting mods on 18-20psi only one made 372whp at best with crazy head soaked intercoolers..
the other z makes 550whp on race gas upgraded t3 ect. i drove this car on low boost 16psi around 400whp and it did not impress me. it didnt feel to much fasten then my s14 on 10psi

yes power to weight is key. also small boost on a big turbo helps alot. that why i love 60+mm t4 turbos.

but the car is now down for a month or so.. finally instally my bc 264 and my aem ems, just got my map from shadwreks, so i have finish up the suspension mods install the cams and aem and then refine the tune..

next round stock ka on 14psi w/ aem + cams .. cant wait to rev it 7k :twisted:
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Post by Kfred »

turbo2nr wrote: next round stock ka on 14psi w/ aem + cams .. cant wait to rev it 7k :twisted:
Take it to 7.5k, you pansy. I do it on 272s with stock springs and have had great luck. With a big turbo you have to rev the engine out or else your powerband is too small.

Keep us updated on how the new tune and cams work out.
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Post by nismoz »

turbo2nr wrote:well like i said i dont know anything about that z except what the guy said. i did notice that it would let out a puff of black smoke when he got on it, im sure he had to be running bigger injectors the amount of black sud from his exhaust.

as for a 300zxtt being 500hp on stock t25 i find that very hard to believe, i have 3 friends that have 300ztt two with stock t25 supporting mods on 18-20psi only one made 372whp at best with crazy head soaked intercoolers..
the other z makes 550whp on race gas upgraded t3 ect. i drove this car on low boost 16psi around 400whp and it did not impress me. it didnt feel to much fasten then my s14 on 10psi

yes power to weight is key. also small boost on a big turbo helps alot. that why i love 60+mm t4 turbos.

but the car is now down for a month or so.. finally instally my bc 264 and my aem ems, just got my map from shadwreks, so i have finish up the suspension mods install the cams and aem and then refine the tune..

next round stock ka on 14psi w/ aem + cams .. cant wait to rev it 7k :twisted:
yeah,there is no dyno proof of this.I can post the sorce from where i got the info if you'd like(all crank horsepower calculated #'s).also I run my 300tt @14 psi and by no means is it weak but it's also not floodin the engine bellowin blk smoke either, but i would have thought a z
@18psi wouldn't have had trouble keepin up with you let alone you leavin him.jus a thought since i have experience with one.
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Post by R34SR »

lol im such a pussy i rev my na to 6k at MOST because that BM shifter rattle gets scary past 5500rpm lol.
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TinyT wrote:for the love of god, post your setup, do you really think you can get an answer after saying HI ME CAR HAS TURBO NOW BUT I CANT BWAAA PSHH WITH IT WHATS WRONG
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Post by adamky »

R34SR wrote:lol im such a pussy i rev my na to 6k at MOST because that BM shifter rattle gets scary past 5500rpm lol.
No doubt! My B&M makes my transmission sound like it's about to blow itself apart at high RPMs. I still take it to 7000+ on a regular basis though. Guess I'm just used to it.
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Post by turbo2nr »

i need more gearing or rpms i find my self hitting rev limiter in 3rd and 4th alot when racing.. i just get to 6500 to fast.

just got my torque wrench so my cam install should happen this weekend. aem soon after that im excited :twisted:
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Post by adamky »

The stock S14 cams pretty much suck balls, so cams should be a good upgrade for you. But... they're going to make you want a higher rev limit pretty quickly. Which cams are you going with?
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Post by zenkiBruce »

adamky wrote:The stock S14 cams pretty much suck balls, so cams should be a good upgrade for you. But... they're going to make you want a higher rev limit pretty quickly. Which cams are you going with?
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Post by turbo2nr »

i have a set of bc 264 to be installed, then after that im installing my aem, so i plan to set the limiter to 7200. hopefully i should be ok, i just want to make power to 7k and ill be happy.

bad thing with a big turbo is once i make full boost around 5k i only have 1500rpms to enjoy it then shift.. but when it kicks it kicks hard lol
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Post by nismoz »

turbo2nr wrote:
bad thing with a big turbo is once i make full boost around 5k i only have 1500rpms to enjoy it then shift.. but when it kicks it kicks hard lol
that sounds neck snappin....it doesn't bother you?
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Post by turbo2nr »

no i love it actually.

i hate the liner pull of a t2 and some t3 turbos, it kinda makes the car feel like a fast na car. idk i like to be hurled back in my seat . i know having a smaller turbo that spools up sooner is more efficent b/c of more useable power, but the big turbos are fun. with the proper gearing and rev limit it should be better.. i always look at the rb for inspiration it must be crazy to have be in a rb with big turbo that makes full boost at 5k and still have a 9k rev limit.

when my motors built i plan and reving to around 8200.. well see what happens
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Post by kentoJDM240 »

some people compare the ka24 power band to an RB.. Funny that u mentioned that
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Post by Kfred »

The ka makes a pretty fat powerband for a 4cylinder. I've never been overly impressed by an rb25 dyno. 1J dynos look much better, especially with cams.

A .63a/r gt35r or .70a/r s258/259 makes for a great 4k to 7.5k powerband. BIG turbos pushing low boost with a <7000rpm redline isn't cool at all. I like at least 3000rpms of usable powerband.

The first to second shift in a car that makes full boost at 5k with the stock redline must suck balls.
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Post by Alonso »

Kfred wrote: The first to second shift in a car that makes full boost at 5k with the stock redline must suck balls.
It didnt for me. I was actually impressed by my T3/T67 H.O. I think the overall setup I was running made a difference tho.

I'm not used to taking it past 7000rpm thats why I never went any further. I have a s13 tach with a 7500rpm redline I'll be swapping in soon to help me a bit.
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Post by nismoz »

turbo2nr wrote:no i love it actually.

i hate the liner pull of a t2 and some t3 turbos, it kinda makes the car feel like a fast na car. idk i like to be hurled back in my seat . i know having a smaller turbo that spools up sooner is more efficent b/c of more useable power, but the big turbos are fun. with the proper gearing and rev limit it should be better.. i always look at the rb for inspiration it must be crazy to have be in a rb with big turbo that makes full boost at 5k and still have a 9k rev limit.

when my motors built i plan and reving to around 8200.. well see what happens
you'll be quiet happy with an 8200rpm rev.kinda like drivin a honda :lol:
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Post by TinyT »

nismoz wrote:
turbo2nr wrote:
bad thing with a big turbo is once i make full boost around 5k i only have 1500rpms to enjoy it then shift.. but when it kicks it kicks hard lol
that sounds neck snappin....it doesn't bother you?
that sounds boring as **** actually. haha

i would hate a car with a 1500rpm powerband, then again i would never build a car with that.
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Post by turbo2nr »

hmm its not that bad i see full boost around 4500 in 3rd. but yea once i really build the motor and turbo setup it should be more efficient. id love to have a equal length manifold and a large intake plenum but hopefully all that will come in time.
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Post by Turbo24sxt »

with cams your power band will increase.. you will spool that turbo faster .. its only a 62 right? you should be spooling quicker then what you are ... my 67 spooled faster then your saying yours does .. but i had cams ...

good luck man .. keep it up ...
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