Vortec bench racing, please respond.
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Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Vortec bench racing, please respond.
Maybe I should start another thread, but oh well, this is a vortec thread.
Just been thinking a lot in the past couple of weeks about different vortec combos and bench racing.
I want the most radical, yet streetable LOW Buck Vortec combo. I have Vortecs that I got $50 bucks in and I am not buying another set of SBC heads. I have EXCELLENT RESOURCES for CHEAP parts, and have many parts already.
Ragged-edge pump gas(10.8-11.0:1) 406ci, Lunati Voodoo 243/249 .578/.585solid roller with CAT lifters, PORTED Vortec's w/ stock valves by me(probably at least a 235-240cfm intake port.), Professional Products intake PORTED, Already have the Airgap/Crosswind, Maybe the Hurricane single plane, 750 or 825cfm Mighty Demon, Gforce T5, Hybrid 8.8 rear with 4.10 or 4.30, Lakewood LCA's with relocation brackets, Poly TA bushing, Hedman longtubes, 3" X-pipe w/bullets.
I think Low 11's with a 117-120mph trap speed would be attainble. Yeah, no??? What do guys think? I think that cam and my heads are definitely going to kick ***. Just having fun dreaming up combos, 'cause I am gonna do something Cheap, Fast, Radical, KINDA streetable next year mid year.
If any one else wants bench race combo here please do so. Its wintertime, Im bored. lets talk cars.
Just been thinking a lot in the past couple of weeks about different vortec combos and bench racing.
I want the most radical, yet streetable LOW Buck Vortec combo. I have Vortecs that I got $50 bucks in and I am not buying another set of SBC heads. I have EXCELLENT RESOURCES for CHEAP parts, and have many parts already.
Ragged-edge pump gas(10.8-11.0:1) 406ci, Lunati Voodoo 243/249 .578/.585solid roller with CAT lifters, PORTED Vortec's w/ stock valves by me(probably at least a 235-240cfm intake port.), Professional Products intake PORTED, Already have the Airgap/Crosswind, Maybe the Hurricane single plane, 750 or 825cfm Mighty Demon, Gforce T5, Hybrid 8.8 rear with 4.10 or 4.30, Lakewood LCA's with relocation brackets, Poly TA bushing, Hedman longtubes, 3" X-pipe w/bullets.
I think Low 11's with a 117-120mph trap speed would be attainble. Yeah, no??? What do guys think? I think that cam and my heads are definitely going to kick ***. Just having fun dreaming up combos, 'cause I am gonna do something Cheap, Fast, Radical, KINDA streetable next year mid year.
If any one else wants bench race combo here please do so. Its wintertime, Im bored. lets talk cars.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Probably come close to those #'s if the rest of the combo is matched to handle it.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
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Joined: May 2001
Posts: 2,009
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From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
I think you are on the right track to mid/low 11's if the car is setup right. With 4.xx gears get a 28" or even 29" tire if you fit. CAT lifters? yikes... don't cheap out on solid roller lifters or you'll be replacing them more than you'll be racing.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
I hope LOW LOW 11's @119-121ish. I am building Low dollar Pieces of s__t that will run good. Im done spending good money on these motors. If I wanted to spend a lot of money to go fast I would start saving for an LSX.
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Joined: May 2001
Posts: 2,009
Likes: 5
From: Pitman, NJ
Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
Yeah, the CAT's are Cheap. I figured that I would give'em a try. Hopefully they wont come apart like shrapnel. They're only $100 bucks.
I hope LOW LOW 11's @119-121ish. I am building Low dollar Pieces of s__t that will run good. Im done spending good money on these motors. If I wanted to spend a lot of money to go fast I would start saving for an LSX.
I hope LOW LOW 11's @119-121ish. I am building Low dollar Pieces of s__t that will run good. Im done spending good money on these motors. If I wanted to spend a lot of money to go fast I would start saving for an LSX.
$100 solid roller lifters specifically in a car that you plan to drive on the street with? You'll be replacing them, your cam, and possibly your motor in no time. You cannot skimp on anything in the drivetrain if you go solid roller or you'll be paying double in the end. Look into lifters like Isky Red Zone's or Crower Severe Duty they have pin oiling. It'd also be wise to get a cam ground on a billet core. In the end the words solid roller, low budget, and street cannot go together...
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Can you use the comp tool to groove the lifter bore to oil the roller/cam interface?
I figured that would be the same as using a lifter that has the groove, 6 of one half dozen of the other...
I figured that would be the same as using a lifter that has the groove, 6 of one half dozen of the other...
Thread Starter
Member
Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Plus, I got a STD. bore Vortec shortblock with NO ridge, still has hone marks. has a little knock.
gotcha. if you already have it, run it!
a friend of mine had a 91 z28 w/358" with vortecs and a victor jr. and th400, 3600 converter, and 9" w/4.10's..... 230ish hydraulic cam. on motor he was running 7.60's, and the bottle 7.0's. 1/8 mile that is.
a friend of mine had a 91 z28 w/358" with vortecs and a victor jr. and th400, 3600 converter, and 9" w/4.10's..... 230ish hydraulic cam. on motor he was running 7.60's, and the bottle 7.0's. 1/8 mile that is.
Last edited by DIGGLER; Dec 23, 2006 at 01:41 PM.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
I figured 7.5x after a LOT of tuning and driving. 7.6x-7.8x more likely after a LITTLE tuning and practice.
Its IN THE WORKS, RIGHT NOW! Will be running in 2 months or so, I hope. Probably 3-4 months, LOL!
Im like a little school girl with a new boyfriend... Gotta tell everybody and cant stop talking about it. IM SO EXCITED! Mind you right now Total invested is about $1900! After me and my buddy do the paint, about $2800 invested. CHEAP... WHOLE CAR, not the motor...EVERYTHING!
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Keep in mind the Vortec heads have a 170cc runner, if you want to go fast displacement is not going to help you any with these heads. I also do not think it is going to go low 11's.
My Vortec setup was as follows:
350ci, ported Vortec heads, xe274 cam, roller rockers, 10:1 compression, 3000 stall, 3.73's and a single plane intake
I bested 12.28 @ 111.85 and consistant 12.3's at 110, I don't see a little bit of headwork and a roller camshaft giving you 10 mph and a second over what my car did.
Vortec heads have a 1.25 valve spring pocket, it is going to be hard to find a roller valve spring that will withstand a solid roller camshaft.
My personal opinion would be to go with a solid flat tappet camshaft since this is a budget build, and set your sights on running 11.8's at closer to 113-115 mph. You won't be dissapointed.
My Vortec setup was as follows:
350ci, ported Vortec heads, xe274 cam, roller rockers, 10:1 compression, 3000 stall, 3.73's and a single plane intake
I bested 12.28 @ 111.85 and consistant 12.3's at 110, I don't see a little bit of headwork and a roller camshaft giving you 10 mph and a second over what my car did.
Vortec heads have a 1.25 valve spring pocket, it is going to be hard to find a roller valve spring that will withstand a solid roller camshaft.
My personal opinion would be to go with a solid flat tappet camshaft since this is a budget build, and set your sights on running 11.8's at closer to 113-115 mph. You won't be dissapointed.
we went 11.80's with a bone stock LT1 engine..... albeit roller rockers, headers, throttlebody, etc.. lotsa suspension stuff, and ~3100lbs.
if the car is setup right i dont see a problem with going faster than what we did with 300rwhp.
if the car is setup right i dont see a problem with going faster than what we did with 300rwhp.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
Likes: 1
From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Keep in mind the Vortec heads have a 170cc runner, if you want to go fast displacement is not going to help you any with these heads. I also do not think it is going to go low 11's.
My Vortec setup was as follows:
350ci, ported Vortec heads, xe274 cam, roller rockers, 10:1 compression, 3000 stall, 3.73's and a single plane intake
I bested 12.28 @ 111.85 and consistant 12.3's at 110, I don't see a little bit of headwork and a roller camshaft giving you 10 mph and a second over what my car did.
Vortec heads have a 1.25 valve spring pocket, it is going to be hard to find a roller valve spring that will withstand a solid roller camshaft.
My personal opinion would be to go with a solid flat tappet camshaft since this is a budget build, and set your sights on running 11.8's at closer to 113-115 mph. You won't be dissapointed.
My Vortec setup was as follows:
350ci, ported Vortec heads, xe274 cam, roller rockers, 10:1 compression, 3000 stall, 3.73's and a single plane intake
I bested 12.28 @ 111.85 and consistant 12.3's at 110, I don't see a little bit of headwork and a roller camshaft giving you 10 mph and a second over what my car did.
Vortec heads have a 1.25 valve spring pocket, it is going to be hard to find a roller valve spring that will withstand a solid roller camshaft.
My personal opinion would be to go with a solid flat tappet camshaft since this is a budget build, and set your sights on running 11.8's at closer to 113-115 mph. You won't be dissapointed.
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From: Medford, Oregon
Car: 1989 Iroc Z L98
The heads are always going to be the bottleneck, you will end up with a shortblock and valvetrain capable of 600 horsepower and a set of cylinder heads that bottleneck at 450 horsepower. Trust me I have been down this road before.
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From: Orland Park, IL
Car: 1984 Z28
Engine: SLOW carbed ls
Transmission: TH400 with brake, 8" PTC converter
Axle/Gears: moser 9" 4.11
i agree unknownhost, the most he should be shooting for to take advantage of those heads is a well thought out 350-383 that's not built for more than 450hp. He could build a 406 but in the upper rpms those heads will fall on their face and stop making power.
Last edited by xpndbl3; Jan 2, 2007 at 12:57 AM.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
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From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Play with the current .060 over bottom, and the Vortec STOCK shortblock until they both blow from a 250 hit of N20! Then replace with Solid roller 406ci
ALL FORGED 10:1 pistons lotsa N20 and then some sort of ATI ProCharger F-1,2,R,etc. with AFR 227 Eliminator heads. Milled Vortecs will be close to 11:1 with the 18cc? dish and 9.5:1 or less with Big chamber AFR's.
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Thats why I titled it VORTEC BENCH RACING.
Play with the current .060 over bottom, and the Vortec STOCK shortblock until they both blow from a 250 hit of N20! Then replace with Solid roller 406ci
ALL FORGED 10:1 pistons lotsa N20 and then some sort of ATI ProCharger F-1,2,R,etc. with AFR 227 Eliminator heads. Milled Vortecs will be close to 11:1 with the 18cc? dish and 9.5:1 or less with Big chamber AFR's.
Play with the current .060 over bottom, and the Vortec STOCK shortblock until they both blow from a 250 hit of N20! Then replace with Solid roller 406ci
ALL FORGED 10:1 pistons lotsa N20 and then some sort of ATI ProCharger F-1,2,R,etc. with AFR 227 Eliminator heads. Milled Vortecs will be close to 11:1 with the 18cc? dish and 9.5:1 or less with Big chamber AFR's.
. Thread Starter
Member
Joined: Sep 2004
Posts: 381
Likes: 1
From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
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From: Medford, Oregon
Car: 1989 Iroc Z L98
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From: Pittsburgh, PA
Car: 74 Nova
Engine: 383
Transmission: TH350
Axle/Gears: 3.73
Don't forget you need to have the TOTAL package working together to get the car down the track. Make sure you consider your chassis & suspension. My 3400# Nova runs 11.50s with unported Vortec heads on my 383ci with a hydraulic flat tappet cam and 10.80s on a 125 shot.
Thread Starter
Member
Joined: Sep 2004
Posts: 381
Likes: 1
From: Bement IL, Champaign,IL
Car: 1985 IROC-Z Silver
Engine: Vortec 5.7L
Transmission: WC-T5
Axle/Gears: 3.23 disc brake 10 bolt
Don't forget you need to have the TOTAL package working together to get the car down the track. Make sure you consider your chassis & suspension. My 3400# Nova runs 11.50s with unported Vortec heads on my 383ci with a hydraulic flat tappet cam and 10.80s on a 125 shot.
Could you list your entire combo? cam specs, compression, etc.
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From: Pittsburgh, PA
Car: 74 Nova
Engine: 383
Transmission: TH350
Axle/Gears: 3.73
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