1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

What's my HP?

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Old Aug 29, 2002 | 11:11 PM
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What's my HP?

1985 GS w/ headers, costum 2.5" exhaust and racing beat muffler... that would bring my hp to?

thanks...
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Old Aug 29, 2002 | 11:17 PM
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Somewhere in the neighborhood of 115-120 HP I would guess, depends on your custom exhaust.
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Old Aug 29, 2002 | 11:19 PM
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oh yah, what's my torque?
I can't find a specs page for the life of me
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Old Aug 29, 2002 | 11:20 PM
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100hp?
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Old Aug 29, 2002 | 11:26 PM
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450hp?

Lol.....
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Old Aug 29, 2002 | 11:45 PM
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you're max torque probably wont change at all
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Old Aug 29, 2002 | 11:49 PM
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Realistically, it's pretty hard for anyone to tell you what power you're putting out on the internet. You're probably somewhere like 15% over stock.
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Old Aug 30, 2002 | 12:27 AM
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SUPRAMAN
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862rwhp with 932lbs. of torque
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Old Aug 30, 2002 | 12:52 AM
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with low miles and a strong running engine id say 110 hp

now with some freebie or cheapie mods you can bring the numbers up fast

such as removing the smog setup etc...
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Old Aug 30, 2002 | 01:28 AM
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I agree that assuming the engine is in a good state 110-115hp SAE at the flywheel is the most likely performance. however I think there would have been a similar 10%increase in torque.

The easiest way to check the significance of the mods is before and after dyno readings, on the same machine! Its relatively cheap compared wit the total costs.
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Old Aug 30, 2002 | 09:42 AM
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The main reason I asked was b/c I just got the car, and I have no idea as of it's specs. I wasn't nessessarily trying to see how much more hp I have now with the exhaust. I bought the car with that already done to it, and was simply interested in finding out what my HP/torque was. edmunds only shows specs of cars 1990+...
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Old Aug 30, 2002 | 10:37 AM
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Stock, that car had 105hp.
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Old Aug 30, 2002 | 10:57 AM
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I thought it was 101hp stock?

How about this set up? I haven't put it on a dyno yet.
- RB Header
- Custom open stright piped exhaust
- RB intake
- RB modded Holley Carb
- 12a engine stock port
- No emissions what so ever (air pump, rats nest, vac lines, acv, etc...)
- No clutch fan (electric)

Any guesses?
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Old Aug 30, 2002 | 11:05 AM
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I'm sure I'll be kicking an antpile with this observation, but with a stockport restricting the airflow, I'd speculate about 150 HP at the flywheel...
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Old Aug 30, 2002 | 11:20 AM
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error302's setup would also make about 100hp average...

Might make 150hp for a few seconds, until the carb bowls drained out from lack of FUEL.
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Old Aug 31, 2002 | 02:04 PM
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I've read on numerous sites that stock 12a's had 101 hp. Considering the car is 17 years old, its probably lost about 10 of those, so i agree with peejay, ~100 hp for your 85.
I wouldn't even venture a guess for error402
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Old Aug 31, 2002 | 02:12 PM
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i might as well speak up and ask.....this is soon to be on the car....

dellorto rb setup
stock ported 12a in very nice shape..(no smoke no oil drip nothing
RB header / open exhaust
no emissions etc.
oh, and there will be an aftermarket fuelpump..any suggestions?

so what do you think...i was guessing...+15hp for the free flow exhaust / header...and according to rb dellorto +50hp (50% gain) for the dellorto...am i right?

Paul
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Old Aug 31, 2002 | 03:30 PM
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Originally posted by peejay
error302's setup would also make about 100hp average...

Might make 150hp for a few seconds, until the carb bowls drained out from lack of FUEL.

LOL...thanks Peejay, but i fixed the lack of fuel in bowls. Lowered the pressure and messed with the air/fuel mixture screws.

Oh, and I'm not running 1.5 mpg anymore....

-Error402
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Old Aug 31, 2002 | 04:51 PM
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so what do you think...i was guessing...+15hp for the free flow exhaust / header...and according to rb dellorto +50hp (50% gain) for the dellorto...am i right?
Naw, the RB figure is 53% gain, and includes the Dell setup, full RB exhaust, RB facet fuel pump kit, RB pulleys and ignition timing advance. So realistically figure about 150hp for your car, same as most any stock 12A with a good aftermarket carb setup.
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Old Aug 31, 2002 | 06:10 PM
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Its a real problem. everyune quotes theoritical flywheell figures. About the only person who publishes dyno data is Paul Yaw, where ever he is.

It would be real great if people published rwhp which is realistically what is the best information available.

I agree that any set of NA modifications to a stockport 12a will not give you more than 150-155hp, regardless of what carb is being used. Unfortunately trying to estimate the effect of only a few mods such as a RB header is full of uncertainity due to dyno inaccuracy. There is just insufficient real evidence around, so any prediction is as accurate as a weather forecast.

For the most cost effective approach, count like a Civic Ricer. Every sticker adds 5hp to your performance.

Last edited by PaulFitzwarryne; Aug 31, 2002 at 06:28 PM.
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