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-   -   How much hp?? (https://www.rx7club.com/1st-generation-specific-1979-1985-18/how-much-hp-820315/)

sa22cbp 02-16-09 06:24 AM

How much hp??
 
How much power do u think my 12a bridgeport will make. mods: weber 48dcoe.weber manifold.dlidfis.ac delete.convert to electric fan. header wrapped rb header. rb exhaust with no silencer . im wanting to get into the high 13s if i cant im going to run the 12a until i can afford a 13bt swap

sa22cbp 02-16-09 07:08 AM

i will also be premixing my gas

vipernicus42 02-16-09 09:24 AM

It's very hard to accurately predict the hp of a ported motor. Even using the exact same template, two engines will never be ported exactly the same way.

Which bridgeport template did you use?
Did you port it, or did a shop (which one)?
Single or dual-pipe RB exhaust?

In any case, I'm sure it will make fair power, and since you seem to be building it as a drag racing car, then you shouldn't mind sacrificing drivability for 1/4 mi performance. With that in mind your choices of a 2bbl carb on a bridgeport make sense. You'll definitely want to spend some good quality tuning time with it on the dyno though, to get the carb dialed in.

I won't even guess at the power, since I would most likely be off by a long shot, but my guess is "it will make good power for what you want"

Jon

sa22cbp 02-16-09 12:30 PM

im not sure of the template or who even did it when i got the car it was already ported but was running a holley 850 carb and didnt run so great with that carb and its a single pipe rb its mostly going to be a weekend warrior just out to
smoke some people

Starfox07 02-16-09 12:31 PM

Should brap brap nicely :D

thunkrd 02-16-09 12:33 PM

maybe 190 hp that's my guess lol

sa22cbp 02-16-09 05:07 PM

thanks guys

Jimbo II 02-16-09 05:45 PM

Sounds very similar to my mates setup but he's running a different exhaust, he's making around 220 - 230 hp. Depends on as said above: the port size and shape etc. My mates is a full cut bridgy.

My 13B large extend port still smokes him though hahaha!

BlackWorksInc 02-17-09 11:57 PM


Originally Posted by thunkrd (Post 8970873)
maybe 190 hp that's my guess lol

190? Isn't your stuff stock though Alex? :Wconfused

thunkrd 02-18-09 02:15 AM

i was talking about his... haha. yes mine would be like... 130 =.=

sa22cbp 02-19-09 11:12 AM

does anyone want to buy this car?

rotary84 02-19-09 10:31 PM

WTH your selling it????? what reason?????

sa22cbp 02-20-09 02:06 PM

idk maybe something different

thunkrd 02-20-09 04:35 PM

if you are gonna buy a hybrid.. omg

Jeezus 02-20-09 07:35 PM


Originally Posted by thunkrd (Post 8983789)
if you are gonna buy a hybrid.. omg

He owns a hybrid, we all do. We burn gas and rubber :)

thunkrd 02-20-09 08:04 PM

i was meaning the communist one

BigBoss 02-21-09 07:04 AM

My 12a is in process of a rebuild and doing a large streetport. oh, yeah, I have Supercharge too! how much Hp am i going to get? I'm guessing 200+

sa22cbp 02-21-09 01:59 PM

almost i daily drive a mazda 323


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