a non-swap, non fi'ed way to make more hp on a d17.
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a non-swap, non fi'ed way to make more hp on a d17.
well, havent tried it yet but how many extra hp will you make a regrounded gude cam/port polished head/11.5:1 high arias compression pistons? or how about the pistons alone... would you have to change youre crankshaft?
Originally posted by FlyRiceRacer02
ask black99vtec.
ask black99vtec.
Yeah, since they are the bestest friends.
lease: I would go with KMS on the head porting, they have diff stages to choose from. You also might think of crower for the camshaft as well. I just dont trust Gude.
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From: Quartz Hill, California, US
Rep Power: 0 Does Arias make high compression pistons for our cars yet? I heard about some low compression pistons from Turbo discounters, but haven't heard of anyone selling high compression pistons. Or will Arias custom make pistons?
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Arias will make custom pistons. There is a form you have to fill out an d fax/mail in for them. You have to include all specs of the stock engine, and what you want to do.
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Civic GX (natural gas version) has 12.5:1 pistons. That would get you moving, but you'd probably have to run 100 Octane with that kind of compression. You could deck the engine and bump compression. Definately a good idea to upgrade the valve train, cam and intake track.
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Rep Power: 0 I've been thinking about this too for the past couple of days. With the KMS intake manifold out, I was wondering if maybe with that and an SRI, custom exhaust, a regrounded cam, and a cam gear, maybe the D17 would push out 120+ to the wheels, maybe? I've just been toying with that idea...
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Rep Power: 0 Okay ive been thinking about this . D17 115 horses stock
D17 , pulleys , cai , exaust, header , cam gear , cam shaft
Kms intake manifold. Whats the horspower on that
It should be like 130 or 125 to the wheels right ?
D17 , pulleys , cai , exaust, header , cam gear , cam shaft
Kms intake manifold. Whats the horspower on that
It should be like 130 or 125 to the wheels right ?
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Rep Power: 0 haha no that's not like 130 or 125 to wheels, have you seen dyno sheets for the d17 engine? you're gonna need more than bolt-ons and a cam to get about a 30 horsepower increase from these engines. the d17s don't respond well to upgrades and aftermarket companies don't put that much effort into designing them for our car. it's gonna take a pretty good amount of work, trial and error, and luck to get a 30 horsepower increase without nitrous or a turbo.
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Rep Power: 380 If you want to go faster get some Short wheels/tires. as in get a set of 205/60Vr13's. the diamiter of the wheel will give about a 7% increace in acceleration. but then you also lose 7% of your top speed.
7%= all things being equal, in the amount of time it took a stock civic to accelerate and travel 100 feet, you would have traveled 107 feet.
or.... asuming our cars take 16 seconds to run a 1/4 mile, that would mean that with the short tires, you would now run, 14.88 a 1.12 second gain.
the down side is, assuming our top speed is 130 mph you now will have a top speed of 120.9 mph
Note: 1/4 mile is not my thing so I dont konw how fast our cars are in it.
7%= all things being equal, in the amount of time it took a stock civic to accelerate and travel 100 feet, you would have traveled 107 feet.
or.... asuming our cars take 16 seconds to run a 1/4 mile, that would mean that with the short tires, you would now run, 14.88 a 1.12 second gain.
the down side is, assuming our top speed is 130 mph you now will have a top speed of 120.9 mph
Note: 1/4 mile is not my thing so I dont konw how fast our cars are in it.
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Rep Power: 0 Anyone have any idea how previous generation civics take to just an upgrade of some of the components in the head? I was nosing around in KMS' web site and I saw that they have Valves for our D17s (among other things).
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Rep Power: 0 I'll have about $1600 dollars saved up by the end of June. I was planning on buying a bodykit with the money (I have always said that I would never put a kit on my car but the Tsunami looks so sick). But for about the same amount of money I could get: D17 valves (300.00), D series Racing Springs & Retainers (280.00), D series valve guides (75.00), D series valve guide seals (45.00), and a custom hardlined cam from Crower (apprx. $750). All the components, except the cam, are from KMS. All together that comes to about $1500, I think. Then a P&P and some type of chip or fuel management (SAFC or JET ECU). What do you think about that set up? My knowledge of these things is very limited.
Last edited by Drk01Civic; Jun 4, 2003 at 07:25 PM.
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Rep Power: 0 Originally posted by Zzyzx
If you want to go faster get some Short wheels/tires. as in get a set of 205/60Vr13's. the diamiter of the wheel will give about a 7% increace in acceleration. but then you also lose 7% of your top speed.
7%= all things being equal, in the amount of time it took a stock civic to accelerate and travel 100 feet, you would have traveled 107 feet.
or.... asuming our cars take 16 seconds to run a 1/4 mile, that would mean that with the short tires, you would now run, 14.88 a 1.12 second gain.
the down side is, assuming our top speed is 130 mph you now will have a top speed of 120.9 mph
Note: 1/4 mile is not my thing so I dont konw how fast our cars are in it.
If you want to go faster get some Short wheels/tires. as in get a set of 205/60Vr13's. the diamiter of the wheel will give about a 7% increace in acceleration. but then you also lose 7% of your top speed.
7%= all things being equal, in the amount of time it took a stock civic to accelerate and travel 100 feet, you would have traveled 107 feet.
or.... asuming our cars take 16 seconds to run a 1/4 mile, that would mean that with the short tires, you would now run, 14.88 a 1.12 second gain.
the down side is, assuming our top speed is 130 mph you now will have a top speed of 120.9 mph
Note: 1/4 mile is not my thing so I dont konw how fast our cars are in it.
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Rep Power: 419 Wouldn't you also need to tune your ECU after these sorts of modifications? I mean, you're adding more air with such modifications as P&P or a cam or a throttle body or an intake manifold. You need to add more fuel as well. I think the ECU can add more fuel to a certain extent, but I don't know how much it can add in exactly? Who knows...
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Rep Power: 0 Well, like I said, I have a very limited knowledge of this but I was assuming that the stock injectors and fuel pump (or whatever else limits fuel flow) would be adequate with the ECU upgrade or SAFC. Any ideas on what options are out there as far as fuel flow?
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From: union grove, wis
Rep Power: 0 Originally posted by dupes1983
haha no that's not like 130 or 125 to wheels, have you seen dyno sheets for the d17 engine? you're gonna need more than bolt-ons and a cam to get about a 30 horsepower increase from these engines. the d17s don't respond well to upgrades and aftermarket companies don't put that much effort into designing them for our car. it's gonna take a pretty good amount of work, trial and error, and luck to get a 30 horsepower increase without nitrous or a turbo.
haha no that's not like 130 or 125 to wheels, have you seen dyno sheets for the d17 engine? you're gonna need more than bolt-ons and a cam to get about a 30 horsepower increase from these engines. the d17s don't respond well to upgrades and aftermarket companies don't put that much effort into designing them for our car. it's gonna take a pretty good amount of work, trial and error, and luck to get a 30 horsepower increase without nitrous or a turbo.
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Rep Power: 0 Originally posted by tdiddy
115 + 15= 130, he didnt say anything about a 30hp increase. Anyway its very possible to get 30+ hp with just bolt ons, one day i will prove it.
115 + 15= 130, he didnt say anything about a 30hp increase. Anyway its very possible to get 30+ hp with just bolt ons, one day i will prove it.
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From: union grove, wis
Rep Power: 0 Originally posted by dupes1983
If you look at his post he is talking about a 115hp engine stock. Needless to say, this does not put 115 hp to the wheels...closer to 100. So if he wanted to get to 130 hp to the wheels that would be adding 30 hp and not 15. I'd like to see your dyno sheet showing a 30hp improvement on a d17 engine with just bolt ons. I did not say it was impossible...look back to see what I said.
If you look at his post he is talking about a 115hp engine stock. Needless to say, this does not put 115 hp to the wheels...closer to 100. So if he wanted to get to 130 hp to the wheels that would be adding 30 hp and not 15. I'd like to see your dyno sheet showing a 30hp improvement on a d17 engine with just bolt ons. I did not say it was impossible...look back to see what I said.
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Rep Power: 0 Originally posted by tdiddy
I hope your not talking about an ex motor, because if you are and your only pushing 100 to the wheels then something isnt right. I have seen dyno sheets and they range from 110-115hp stock
I hope your not talking about an ex motor, because if you are and your only pushing 100 to the wheels then something isnt right. I have seen dyno sheets and they range from 110-115hp stock
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Rep Power: 380 Originally posted by dupes1983
umm then why do drag cars and race cars use tires that have a larger diameter than stock? maybe you should let them know what they're doing wrong...j/k...i just don't know about this
umm then why do drag cars and race cars use tires that have a larger diameter than stock? maybe you should let them know what they're doing wrong...j/k...i just don't know about this
they do because, with High horsepower engins, you need a larger side wall on the tire to allow the tire to flex so you can actually get grip off the line and not spin the tires. (Low profile tires SUCK at drag launches.) and you lose some top speed.
the trick I was talking about is more of a Track car trick used mostly with the smaller/lower Hp race cars. thats why most Race cars run the smallest wheel and tire they can fit on the chassis. you see a whole lot of 13" wheels at the race track, smaller if they can fit them. You also see this in Autocross. (Where I learned it from.)
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Rep Power: 0 I have a Gude regrind & am happy; it's had much more of an impact on acceleration than all my other mods together. I/H/E, flywheel (i'd estimate 10 wheel hp easily; Gude claim 18, but w/ no dyno, i don't want to get hopes, up) Remember, w/ a reground cam you must get a cam gear & tune it on a dyno, as regrinds are notorious for having timing off at TDC.
The ECU, stock injectors etc should be able to handle up to about 180 crank hp easily (i've heard upto 200, but doubt it)
W/ the GX pistons, you would need 100 Octane gas for sure, some local gas stations may stock it $ 4.50 or so in N. Cal (i don't have these pistons, but have researched them)
What Zzyzx is talking about is basically gearing. Reduce gearing (shorter wheel/ tire combo or axle gearing) & you increase acceleration, but reduce top speed & vice versa.
Other mods to consider is a exhaust manifold p&p & a whole new bottom end. There is someone in the SF bay area who races SOHC civics & is considering a package. (I didn't get details, as it will be a wile coming out, if it is even released!!)
As w/ the KMS car, i believe w/ an NA motor fully built, we could look at 250+ to the wheels. My shops seen NA D- series cars that make that much on a dyno.
Update; i'm researching ECU swaps. The old D- series ECUs don't plug in, i've got a couple of people looking at this for me, including HONDATA. There may be compatibility issues as we have OBD2- C (so i'm told..) If we could do an ECU swap- vroom!
The ECU, stock injectors etc should be able to handle up to about 180 crank hp easily (i've heard upto 200, but doubt it)
W/ the GX pistons, you would need 100 Octane gas for sure, some local gas stations may stock it $ 4.50 or so in N. Cal (i don't have these pistons, but have researched them)
What Zzyzx is talking about is basically gearing. Reduce gearing (shorter wheel/ tire combo or axle gearing) & you increase acceleration, but reduce top speed & vice versa.
Other mods to consider is a exhaust manifold p&p & a whole new bottom end. There is someone in the SF bay area who races SOHC civics & is considering a package. (I didn't get details, as it will be a wile coming out, if it is even released!!)
As w/ the KMS car, i believe w/ an NA motor fully built, we could look at 250+ to the wheels. My shops seen NA D- series cars that make that much on a dyno.
Update; i'm researching ECU swaps. The old D- series ECUs don't plug in, i've got a couple of people looking at this for me, including HONDATA. There may be compatibility issues as we have OBD2- C (so i'm told..) If we could do an ECU swap- vroom!
Last edited by Da2K1; Jun 5, 2003 at 01:05 PM.
