Stroker question
Instructor
Joined: Apr 2002
Posts: 105
Likes: 0
From: Charlotte NC
Re: Stroker question (Glasman66)
It depends entirely what your goals are, as to whether a stroker would suit you. Most people seem to want something with lowend power so it feels fast. For a play car, you aren't racing for $ in all likelyhood.. so that can be alot of fun. If you want to go fast, you need to turn it IMO.
Spin it, gear it, and make it hook up. Simple :steering:
Spin it, gear it, and make it hook up. Simple :steering:
Melting Slicks
Joined: Mar 2002
Posts: 2,874
Likes: 764
From: Sligo PA
Re: Stroker question (Glasman66)
Will give you lots of bottom end power. Doesn't take away from upper rpm power it's just that if you go with a normal cast or forged crank they are a lot heavier and kill rpm potential. A super light crank will solve this if you feel like spending $2000 on one.
Instructor
Joined: Apr 2002
Posts: 105
Likes: 0
From: Charlotte NC
Re: Stroker question (Phobos84)
Volumetric Efficiencyis directly related to piston speed. So yes, with the same setup, you will lose topend power... and mid-topend power is what wins races. Again though, if you're just rolling around and playing... I don't think it matters that much.
Melting Slicks
Joined: Mar 2002
Posts: 2,874
Likes: 764
From: Sligo PA
Re: Stroker question (SkarodoM)
I did not know that. Sorry. I do know that even if it kills top end you can still build a 383 with a lot of top end. Take a 400 block and de-stroke it with a 350 crank and punch it .030 over. With a good cam and port work you will get good torque and be able to run to 7500rpm easy.
Instructor
Joined: Apr 2002
Posts: 105
Likes: 0
From: Charlotte NC
Re: Stroker question (Phobos84)
Well it wouldn't be as big a deal if people didn't undercam/head their stuff so severely alot of times.
There you go, big bore, short stroke.. the way to NA happiness :D. I'd personally never run more than a 383... and definitely not some of the big inch strokers people put together with godawful bore/stroke ratios. Same reason a 396BBC will stomp a 396sbc.. where it makes the cylinder pressure :). Of course, everyone's obsessed with inches.. and they're great, but IMHO not so hot when you begin to build something akin to a large 305. Never the less, that's generalizing what most people do. Properly built, it's not like it'll be slow by any stretch of the imagination :)
I know people hate to hear that :boxing.
There you go, big bore, short stroke.. the way to NA happiness :D. I'd personally never run more than a 383... and definitely not some of the big inch strokers people put together with godawful bore/stroke ratios. Same reason a 396BBC will stomp a 396sbc.. where it makes the cylinder pressure :). Of course, everyone's obsessed with inches.. and they're great, but IMHO not so hot when you begin to build something akin to a large 305. Never the less, that's generalizing what most people do. Properly built, it's not like it'll be slow by any stretch of the imagination :)
I know people hate to hear that :boxing.
Safety Car
Joined: Apr 1999
Posts: 4,623
Likes: 2
From: Ohio
Re: Stroker question (SkarodoM)
If you're talking strictly about straight line racing, I agree. Spin it! I guess that's one of the reasons the 1/4 mile guys like the 377. I need to have a broad power band. A big bad flat torque curve is what helps get off corners quickly and beats the other guy point to point. (presuming you drive it!) My SR 383 has yet to be dynoed, but all the sims show big TQ and power to 6400+. Haven't spun it over that yet, but it sure didn't lay down AT ALL. Should be enough to get me into trouble this coming season. :D
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Instructor
Joined: Apr 2002
Posts: 105
Likes: 0
From: Charlotte NC
Re: Stroker question (h rocks)
99% of what we do is for road race applications & it's still all big bore, short stroke, and spin it. Straight, curved, whereever you're accelerating, but obviously.. things change when it's more street than race, or even 50/50 IMO.
Either way you go, it's all about the entire package obviously :).
Gah! Hamtime :D
Either way you go, it's all about the entire package obviously :).
Gah! Hamtime :D
Thread Starter
Drifting
Joined: Apr 2001
Posts: 1,403
Likes: 0
From: Denver CO
Re: Stroker question (SkarodoM)
So I guess my question is, When I rebuild should I stick with the 350, and just make her breath like a *****?
I think that would be more cost effective.
I also see that you are running shorties. My tuner said these were the the best way to go unless you are looking to go into the 500 and up HP ranges.
I think that would be more cost effective.
I also see that you are running shorties. My tuner said these were the the best way to go unless you are looking to go into the 500 and up HP ranges.
Melting Slicks
Joined: Sep 2000
Posts: 3,099
Likes: 0
From: PITTSBURGH PA
Cruise-In IV Veteran
Cruise-In V Veteran
Re: Stroker question (Bruce)
quote(It depends entirely what your goals are, as to whether a stroker would suit you. Most people seem to want something with lowend power so it feels fast. For a play car, you aren't racing for $ in all likelyhood.. so that can be alot of fun. If you want to go fast, you need to turn it IMO.) so skarodom my car just feels fast but realy isnt that fast is that what i am reading from your above statsmants and i should turn it to 7500 rpm because where i shift at a measly 5400 rpm there is no power down there ohhh okay now i under stand there i thought i knew what i was doing all these years now i finally see the light :crazy: :cheers:
Race Director
Joined: Aug 2000
Posts: 11,506
Likes: 4
From: Vancouver,Wa.
Re: Stroker question (CORKVETTE1)
quote(It depends entirely what your goals are, as to whether a stroker would suit you. Most people seem to want something with lowend power so it feels fast. For a play car, you aren't racing for $ in all likelyhood.. so that can be alot of fun. If you want to go fast, you need to turn it IMO.) so skarodom my car just feels fast but realy isnt that fast is that what i am reading from your above statsmants and i should turn it to 7500 rpm because where i shift at a measly 5400 rpm there is no power down there ohhh okay now i under stand there i thought i knew what i was doing all these years now i finally see the light :crazy: :cheers:
Safety Car
Joined: Mar 1999
Posts: 3,600
Likes: 170
From: Toronto, Canada
Re: Stroker question (Glasman66)
So I guess my question is, When I rebuild should I stick with the 350, and just make her breath like a *****?
I think that would be more cost effective.
I also see that you are running shorties. My tuner said these were the the best way to go unless you are looking to go into the 500 and up HP ranges.
I think that would be more cost effective.
I also see that you are running shorties. My tuner said these were the the best way to go unless you are looking to go into the 500 and up HP ranges.
Long tube headers will provide more hp and tq over shorties regardless of total output. They will benefit larger and/or higher spinning motors and the gains will be more noticeable.
Melting Slicks
Joined: May 2002
Posts: 2,670
Likes: 4
From: Severna Park MD
Re: Stroker question (SkarodoM)
Well it wouldn't be as big a deal if people didn't undercam/head their stuff so severely alot of times.
There you go, big bore, short stroke.. the way to NA happiness :D. I'd personally never run more than a 383... and definitely not some of the big inch strokers people put together with godawful bore/stroke ratios. Same reason a 396BBC will stomp a 396sbc.. where it makes the cylinder pressure :). Of course, everyone's obsessed with inches.. and they're great, but IMHO not so hot when you begin to build something akin to a large 305. Never the less, that's generalizing what most people do. Properly built, it's not like it'll be slow by any stretch of the imagination :)
I know people hate to hear that :boxing.
There you go, big bore, short stroke.. the way to NA happiness :D. I'd personally never run more than a 383... and definitely not some of the big inch strokers people put together with godawful bore/stroke ratios. Same reason a 396BBC will stomp a 396sbc.. where it makes the cylinder pressure :). Of course, everyone's obsessed with inches.. and they're great, but IMHO not so hot when you begin to build something akin to a large 305. Never the less, that's generalizing what most people do. Properly built, it's not like it'll be slow by any stretch of the imagination :)
I know people hate to hear that :boxing.
[Modified by 94lt1torchred, 3:13 PM 1/2/2003]
Former Vendor
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Re: Stroker question (CORKVETTE1)
so skarodom my car just feels fast but realy isnt that fast is that what i am reading from your above statsmants and i should turn it to 7500 rpm because where i shift at a measly 5400 rpm there is no power down there ohhh okay now i under stand there i thought i knew what i was doing all these years now i finally see the light :crazy: :cheers: