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Old Oct 5, 2003
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Turbo or build motor?

I dont know if i want to turbo my 2k1 civic or if i should just build my topend. Is it worth making it turbo, how much boost could i run on a stock motor, and will i risk breaking stuff on any amount of boost? If i was do the motor (cam, port and polish, titanium springs and retainers, and a DC Sports header) how much of a diffierence would i be looking at, and how much fatser do you think either would make it. If i do a turbo it will be with stock internals.
I have a 2k1 ex 5sp

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Old Oct 5, 2003
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Re: Turbo or build motor?

Originally posted by BobbyStylz
I dont know if i want to turbo my 2k1 civic or if i should just build my topend. Is it worth making it turbo, how much boost could i run on a stock motor, and will i risk breaking stuff on any amount of boost? If i was do the motor (cam, port and polish, titanium springs and retainers, and a DC Sports header) how much of a diffierence would i be looking at, and how much fatser do you think either would make it. If i do a turbo it will be with stock internals.
I have a 2k1 ex 5sp

Thanks
Building the motor for NA is gonna be more expensive than FI (turbo) in terms of HP/$. Check out dh-racing.com as it seems to be one of our only options besides KMS if you want to go NA. The motor can handle around 10psi (not daily) it seems but with alcohol injection you can go higher (safer). My SF kit should be in anyday now and I'll be posting my results once I get it installed. If you turbo with stock internals it all depends on what psi you are running so I couldnt tell ya how fast it would be.
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Old Oct 5, 2003
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TURBO. Much more cost effective. Call SFpower if you want some quick power. 5-6 psi is safe and a lot faster than what you have now.
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Old Oct 5, 2003
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seriously, if you got the time and cash, build the motor (for the price of a turbo kit) then spend 500 bucks on a good wetshot and dump in a buttload of nitrous. youll be spanking turbo 7th gens left and right.
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Old Oct 5, 2003
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lol, if you had a turbo, you wouldnt have a dc header... thats what the turbo manifold is for
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Old Oct 5, 2003
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Originally posted by 01WingsWestCivic
lol, if you had a turbo, you wouldnt have a dc header... thats what the turbo manifold is for
You misinterpreted his post. He said:

"If i was do the motor (cam, port and polish, titanium springs and retainers, and a DC Sports header)"

Indicating that "If he was to go all-motor" he would need the header.
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Old Oct 5, 2003
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yea and when you go all motor you need a fortified block and something to prevent nitrous from reaching the fuel cut (like a window switch)...otherwise KABOOM goodbye motor
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Old Oct 5, 2003
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Originally posted by dober
You misinterpreted his post. He said:

"If i was do the motor (cam, port and polish, titanium springs and retainers, and a DC Sports header)"

Indicating that "If he was to go all-motor" he would need the header.
haha, youre right, im a *****
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Old Oct 5, 2003
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im thinking about going n/a too. I have a few questions though: where's a good place to get all this stuff? Where would I get a new vtec cam? And I know where to get the header. Im thinking about cam, port&polish, ti. springs and retainers, some header (undecided), tanabe r-spec cat-back, random tech. catalytic converter and an aem CAI. Either the AEM or that one off ebay that sucks it from the front.
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Old Oct 5, 2003
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Originally posted by jwalker87
im thinking about going n/a too. I have a few questions though: where's a good place to get all this stuff? Where would I get a new vtec cam? And I know where to get the header. Im thinking about cam, port&polish, ti. springs and retainers, some header (undecided), tanabe r-spec cat-back, random tech. catalytic converter and an aem CAI. Either the AEM or that one off ebay that sucks it from the front.
you need to do bottom end work, like resleaving the block, new pistons and rods, etc. the head isnt THAT big of a deal compared to the block.
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Old Oct 5, 2003
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alright. As a rough estimate, how much horsepower would I be looking at if i did all the things I mentioned plus getting block sleeves, pistons, rods, and maybe knife-edging the crankshaft or something. From what I've heard, Honda cranks are pretty good. Also, how much money would I be looking at? Im considering this because it's my dad's car, and he might not let me buy a turbo kit for it; so I have to look for alternate methods of HP gains.
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Old Oct 5, 2003
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ok... turbo man,,, turbo... f this building motor crap until you wanna push 12+ psi... i welcome you to build a motor then put a nice nitrous shot on there, and come run me.. i will WALK you.. not eing cocky.. just trtying to send you in the right direction...if you build the motor, what will you run? a 75 shot????
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Old Oct 5, 2003
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Originally posted by futurersxswap
ok... turbo man,,, turbo... f this building motor crap until you wanna push 12+ psi... i welcome you to build a motor then put a nice nitrous shot on there, and come run me.. i will WALK you.. not eing cocky.. just trtying to send you in the right direction...if you build the motor, what will you run? a 75 shot????
youre joking right? with forged internals id be pushing a 200 shot (at least - 300 more likely). and after i got down a nitrous launch on slicks, you would be destroyed.

but i dont have a civic anymore.
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Old Oct 5, 2003
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although with that amount of power i would start worrying about the gearbox and the driveshafts.
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Old Oct 5, 2003
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Originally posted by jwalker87
alright. As a rough estimate, how much horsepower would I be looking at if i did all the things I mentioned plus getting block sleeves, pistons, rods, and maybe knife-edging the crankshaft or something. From what I've heard, Honda cranks are pretty good. Also, how much money would I be looking at? Im considering this because it's my dad's car, and he might not let me buy a turbo kit for it; so I have to look for alternate methods of HP gains.
this all depends. what compression ratio will you be pushing? what type of fuel? i mean if i had a d17 motor with a sky high compression ratio, id murder every civic on this board, but id be running methanol as my fuel, and wouldnt be remotely near legal on the streets. <-trailer queen

a nice setup would be a 11:1 CR or higher, with nitrous. probably a 100 - 150 shot
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Old Oct 5, 2003
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well, i was talking about a completely street legal civic. Ive been planning for a turbo, but I don't think I can get one, so I'm trying to get HP some other way. With keeping it street legal in mind, what kind of HP gains do you think I would see if I put, say, $2,000 into a n/a setup. That's including the bolt-ons, so $1k for internals.
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Old Oct 5, 2003
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if you do the work yourself you could get some good results, but even for $2-3k won't be as much as a turbo will give ya. Buld up the motor, then turbo it
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Old Oct 5, 2003
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f the boltons, do them after you get your engine set nicely. 2k should allow you to purchase parts for the entire block. youd be safe running a 100 shot then.
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Old Oct 5, 2003
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1k will get the internal parts, they wont get put in unless u put it in, 1k wont get u any parts for the head, so ur 2k will prob get u some pistons and rods and get those put in maybe. so right there ur out of money and u havent even got the bolt ons or the head work. so by the time u get head work ur at another 1k and with the bolt ons ur at maybe another 500, so right there ur at 3500, might as well get a turbo
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Old Oct 5, 2003
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I think I'm leaning more twords turbo, then motor. But, who makes turbo kits for our cars, or should i buy a turbo and all that seperatly? Also, what kinda of time would I be running if I run around say 6psi of boost? Just curios of what I should be looking forward to.

Thanks
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Old Oct 5, 2003
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yes SF makes turbo kit max rev make turbo kit, turbo discounters makes turbo kit, there are picts of all these on the site, then u have the people that piece them together myself being one of those

i would say u can make it into the 14 with 6psi
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Old Oct 5, 2003
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if all youre concerned about is track times, you could run 14s with a 50 shot... just something to think about, but id still go turbo
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Old Oct 5, 2003
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I could care less about track times, I'm more into handling and like autocross. And I dont want nitrous at all.
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Old Oct 5, 2003
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WOW.. bold statement about the 100+ shot of nitrous.. i would LOVE to see one of ourt motors, even built handle a 150 shot.. much less at 11:1 compr.. man.. do you know what youre talking about??? do you know how much stress a 150 shot puts on the motor? you are crazy.. even fully built, that wouldnt last 10 runs on the track.. unless you are talking a 3k build up with headwork and all.. and if thats the case, who wants to refill bottle all the time.. built motor + turbo is the only way to FLY.. and hell yeah bro.. iwish you had built that motor.. i would LOVE to race an 11.0:1 compression D17 with a 150-200 shot of nitrous.. you would have the lead all the way until 2nd gear when your ring landings fried into your block! you cant be serious.. NOONE runs 200shot on a single overhead... it will never last 10 runs at track, let alone daily use.. i hit mid-high 13;s (mids coming with better tires) on my DAILY DRIVEN psi... if i raised a little, put in race gas, and did a little headwork and stuff... i would be looking at 13.0 or so.. dont believe me, wait till cat puts his turbo back on with the DH head and hits a 13.1 or so @ 9psi... its gonna happen.. and its gonna be FINE in the motor...O<M>G ... 200 shot in a 1.7l SOHC... HILARIOOUS
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Old Oct 6, 2003
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Dave Hickman hates nitrous because of how much extra wear and tear it puts on an engine.

I trust this man with my engine, he went 9's on a smaller budget than california's!
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Old Oct 6, 2003
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Hickman gets my vote, I met the guy before and he seems to know his stuff about all-motor or Turbo setups. Shoot him an e-mail at his website and get his opinion.
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Old Oct 6, 2003
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dont be so cocky futurexsswap just cause you have turbo doesnt mean your the man. Plus a 75 shot would be putting out as much power or more considering how nitrous pretty much doubles the tourqe on just a 50 shot in our engines.
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Old Oct 6, 2003
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Originally posted by audioefx3
dont be so cocky futurexsswap just cause you have turbo doesnt mean your the man. Plus a 75 shot would be putting out as much power or more considering how nitrous pretty much doubles the tourqe on just a 50 shot in our engines.

Yea im SOOOOO sick of RSX!!! Hes constantly posting his car all over the internet and always bragging.
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Old Oct 6, 2003
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yes you would need the entire motor fully built to handle the large shot of nitrous. and yes, the 1.7sohc motor can be built to handle that large of a shot. there wont be any stock parts left in the engine, but it can run a shot like that. ever heard of nitrous ramping? its where you dont dump all the nitrous in the engine at once.

yes you would have to deal with refilling the bottle, so? i wouldnt have any sort of inclination to spray 24/7. maybe once a month at most.

but...catalyst is right. even motors that are built for nitrous exclusively will eventually break (as will motors exclussively for turbo). the only downside of the nitrous is how much wear it will put on the motor.

btw: i give your motor another 30k miles at most before the turbo fries it.

Last edited by my04wrx; Oct 6, 2003 at 02:57 PM.
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Old Oct 6, 2003
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Originally posted by audioefx3
dont be so cocky futurexsswap just cause you have turbo doesnt mean your the man. Plus a 75 shot would be putting out as much power or more considering how nitrous pretty much doubles the tourqe on just a 50 shot in our engines.
owned

Originally posted by DIZZLE
Yea im SOOOOO sick of RSX!!! Hes constantly posting his car all over the internet and always bragging.
double owned
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