How much power is just right?

Fiero topics such as vendor reviews experiences, car shows, Fiero buys acquisitions, Fiero Photography.

Moderator: Series8217

Post Reply
User avatar
crzyone
JDM Power FTW
Posts: 4654
Joined: Wed Nov 17, 2004 12:40 am
Location: Whitecourt, Alberta, Canada

How much power is just right?

Post by crzyone »

I have been thinking about this lately. How much power does a fiero need to feel just right?

I personally think that my 3.4dohc was the perfect amount of power for a fiero. It was very snappy, liked to rev and made the car fun to drive.

The 2.8 was ok but when you get into the mountain passes its always nice to have a rev happy motor for those long curvy climbs.

I think the perfect motor would be about 250hp at the crank and about 200lb/ft. Plenty of torque to get around and enough hp to make the car fun to drive and lots of RPMs.

Thoughts?
The Dark Side of Will
Peer Mediator
Posts: 15750
Joined: Wed Nov 24, 2004 11:13 pm
Location: In the darkness, where fear and knowing are one
Contact:

Post by The Dark Side of Will »

I think everyone here is going to chime in and say that whatever they have or had is almost enough. It's just a matter of what you're used to. The Northstar car had 255 at the wheels. This was enough to raise all kinds of ruckus, but I still found myself wanting more sometimes.
Kohburn
FierHo
Posts: 4748
Joined: Fri Apr 01, 2005 10:15 am
Location: Maryland on the bay
Contact:

Post by Kohburn »

the wonderfull thing about boost.. I can build the car up to 400hp and dial it back to 200 if i wanted to. i have a feeling that 300 will be just about right.
dratts
Posts: 61
Joined: Sat Jun 24, 2006 9:26 am
Location: Petaluma

Post by dratts »

The old hotrodders saying. "Too much horsepower is just about right"
I'd rather have a free bottle in front of me than a prefrontal lobotomy
TurboGT
Posts: 451
Joined: Thu Jul 14, 2005 1:32 am

Post by TurboGT »

My car is starting to feel pretty damn good. I still haven't wound it all of the way up but it is still enough to get me into trouble. I am hoping to get it to the dyno and the track some time this summer, and see what it's really capable of.
Mega Squirted Turbo 3400
The install
How to MS your Fiero
whipped
Posts: 4719
Joined: Tue Mar 22, 2005 11:17 am
Location: Bomb shelter, FL

Re: How much power is just right?

Post by whipped »

crzyone wrote: I think the perfect motor would be about 250hp at the crank and about 200lb/ft. Plenty of torque to get around and enough hp to make the car fun to drive and lots of RPMs.
Oh noes! We lost another one to V8Archie!

.

.
.
.
.
I would say 400-500hp would be pretty good.
The Dark Side of Will
Peer Mediator
Posts: 15750
Joined: Wed Nov 24, 2004 11:13 pm
Location: In the darkness, where fear and knowing are one
Contact:

Post by The Dark Side of Will »

I'll generally agree with the race driver's who have said things like "If I'm wide open by the time I get to the next corner, I don't have enough power" and "If I can leave black marks from the exit of any corner to the brake point for the next corner, I have enough power."

With sufficient controllability, one can use a LOT of power regularly. With the right setup, I don't think 4 digit power would be unmanageable.
User avatar
Series8217
1988 Fiero Track Car
Posts: 6078
Joined: Thu Jun 02, 2005 9:47 pm
Location: Los Angeles, CA

Re: How much power is just right?

Post by Series8217 »

crzyone wrote: I think the perfect motor would be about 250hp at the crank and about 200lb/ft. Plenty of torque to get around and enough hp to make the car fun to drive and lots of RPMs.

Thoughts?
Mine is about that but with more torque, and it's just not enough :-(
befarrer
Posts: 1085
Joined: Mon Feb 20, 2006 12:18 am
Location: Alberta

Post by befarrer »

Depends on what tranny. With an automatic with a stock rated stall converter, you could probably handle more in day to day stop and go traffic. But with a standard, especially one with a race clutch, would be too much. Like Crzyones northstar 5 speed may be alittle annoying if you do allot of city driving, because of the grabby clutch and touchy throttle, whereas with an auto, it would be nicer, but on the highway, the 5 speed and auto would be nice.
Indy
Posts: 993
Joined: Wed Nov 17, 2004 12:22 am
Location: the middle of a wheatfield

Post by Indy »

700-800HP, 500 ft-lbs with a 11-12K redline.
Indy DOHC Turbo SD4.....someday.
Oh, and f*ck the envelope. (RFT Insurgent)
stimpy
Who wants Ice Cream?
Posts: 2599
Joined: Wed Nov 17, 2004 2:29 pm
Contact:

Post by stimpy »

If you want a nicely balanced Fiero that is otherwise pretty much as God an Hulki intended, I think there is some merit in a 250/200 balance. I found my L67 to be a bit of a beef hammer when it came to being a street car. The hp was a little shy of that number, but the torque was more then adequate for the job.

My wishlist Fiero loves the specs of the HF 3.6 with the balance closer to 250/250 unboosted. With a less restrictive intake and exhaust and tuning I think it could be very well suited for Fiero duty.
My Fiero is now a Finale. The end.
The Dark Side of Will
Peer Mediator
Posts: 15750
Joined: Wed Nov 24, 2004 11:13 pm
Location: In the darkness, where fear and knowing are one
Contact:

Post by The Dark Side of Will »

I've been eyeing that engine...

The direct injection version in the next gen CTS is supposed to be rated at 300/280 or so. That would be sweet. It's available with a stick, too, so PCM programming won't be an issue with a G6 6 speed (I can't believe I just suggested using that transmission...).
User avatar
crzyone
JDM Power FTW
Posts: 4654
Joined: Wed Nov 17, 2004 12:40 am
Location: Whitecourt, Alberta, Canada

Post by crzyone »

The Dark Side of Will wrote:I'll generally agree with the race driver's who have said things like "If I'm wide open by the time I get to the next corner, I don't have enough power" and "If I can leave black marks from the exit of any corner to the brake point for the next corner, I have enough power."

With sufficient controllability, one can use a LOT of power regularly. With the right setup, I don't think 4 digit power would be unmanageable.
This makes sense for a race car, but how about for a street car. I know a 500hp car would be great but the way fiero transmissions are I would be reluctant.

Race car hp, sky is the limit... well atleast the parts that break are. For a fun street car, occasional auto x car I still think 250whp would be about perfect.
whipped wrote:
Oh noes! We lost another one to V8Archie!
Nooo, 250hp with 200lb/ft means a car with good power without the transmission snapping torque. SBC cars make 250hp with 325+tq. You get the hp, but you also get the drivetrain snapping torque.
User avatar
crzyone
JDM Power FTW
Posts: 4654
Joined: Wed Nov 17, 2004 12:40 am
Location: Whitecourt, Alberta, Canada

Post by crzyone »

I have to say, 400whp would probabaly be perfect for my Skyline. The car seems a bit more controlable on the edge with the awd system. The car is also heavier, speed wise it would closer to a 325whp fiero.
The Dark Side of Will
Peer Mediator
Posts: 15750
Joined: Wed Nov 24, 2004 11:13 pm
Location: In the darkness, where fear and knowing are one
Contact:

Post by The Dark Side of Will »

crzyone wrote:This makes sense for a race car, but how about for a street car. I know a 500hp car would be great but the way fiero transmissions are I would be reluctant.

Race car hp, sky is the limit... well atleast the parts that break are. For a fun street car, occasional auto x car I still think 250whp would be about perfect.
It depends on how controllable the power is. The Mercedes AMG V12's make 600 HP and Supra singles make 600 HP... which one's easier to modulate?

Somewhere here there's a video of a turbo Elise on a road course. It's supposedly pushing 400+ HP out of an already high strung 1.8. The driver's fighting a spin every time he nails the gas because the small engine/big turbo combo has the smoothness of a light switch.
User avatar
crzyone
JDM Power FTW
Posts: 4654
Joined: Wed Nov 17, 2004 12:40 am
Location: Whitecourt, Alberta, Canada

Post by crzyone »

I don't have much experience with 400hp fieros but I imagine they would be a handful, especially if its a 400hp sbc with 450-500lb/ft.
The Dark Side of Will
Peer Mediator
Posts: 15750
Joined: Wed Nov 24, 2004 11:13 pm
Location: In the darkness, where fear and knowing are one
Contact:

Post by The Dark Side of Will »

I would think a 400 HP Chevy would be easier to deal with than a 400 HP Ecotec because power delivery would be more linear.
Post Reply