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Vortec bench racing, please respond.

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Old Dec 18, 2006 | 12:12 PM
  #1  
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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.
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Old Dec 18, 2006 | 01:11 PM
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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.
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Old Dec 18, 2006 | 01:21 PM
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From: Saskatoon, Saskatchewan, Canada
Car: 86 Trans Am
Engine: 406
Transmission: TH350, 4200
Axle/Gears: Moser 9", 3.89
How heavy is the car?
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Old Dec 18, 2006 | 02:31 PM
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z28freak84's Avatar
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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
Originally Posted by Trevor Jacek
How heavy is the car?
dont know yet. but, No A/C, Aluminum radiator, electric fan, gonna go electric water pump, aluminum driveshaft. Its gonna get Welds, draglites or prostars. gonna get new lighter carpet without sound deadner.
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Old Dec 20, 2006 | 12:22 AM
  #5  
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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.
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Old Dec 20, 2006 | 07:29 PM
  #6  
z28freak84's Avatar
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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
Originally Posted by 88IROC350TPI
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.
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.
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Old Dec 20, 2006 | 10:41 PM
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if cheap is your game, find a stock shortblock somewhere, re-ring it, and spend the money you saved there on the heads.... would go faster.
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Old Dec 21, 2006 | 12:15 AM
  #8  
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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
Originally Posted by z28freak84
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.

$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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Old Dec 22, 2006 | 06:08 PM
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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...
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Old Dec 23, 2006 | 10:08 AM
  #10  
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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
Originally Posted by DIGGLER
if cheap is your game, find a stock shortblock somewhere, re-ring it, and spend the money you saved there on the heads.... would go faster.
Read my other thread, "Got my gaskets, starting 360ci build." Then respond again. Tell me what you think of my Current/No bench racing combo. I ACTUALLY HAVE Everything except plugs and upper rad. hose. Need to finish Porting and Assemble.
Plus, I got a STD. bore Vortec shortblock with NO ridge, still has hone marks. has a little knock.
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Old Dec 23, 2006 | 01:38 PM
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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.

Last edited by DIGGLER; Dec 23, 2006 at 01:41 PM.
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Old Dec 23, 2006 | 02:05 PM
  #12  
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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
Originally Posted by DIGGLER
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.
Glad to hear the numbers. My car, I believe, will run that with ME drivin' it. Of course, with supporting mods... LT's & Xpipe, 3.73 or 4.10, Lakewood lowers(I have), Slicks, 5500 dump, and a PRAYER from everybody at TGO that I dont break for at least a couple of good passes to run the number... until I get a GFORCE T5 or better.
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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Old Dec 30, 2006 | 01:35 PM
  #13  
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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.
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Old Dec 30, 2006 | 03:08 PM
  #14  
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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.
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Old Jan 1, 2007 | 12:07 PM
  #15  
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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
Originally Posted by unknown_host
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.
I have my sights set on 11.70's @ 113-115 with my 360ci build, but with a 406ci more compression and much larger duration cam, lowER 11's and 116-118 is what I EXPECT and HOPE for a little more.
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Old Jan 1, 2007 | 06:29 PM
  #16  
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Originally Posted by z28freak84
I have my sights set on 11.70's @ 113-115 with my 360ci build, but with a 406ci more compression and much larger duration cam, lowER 11's and 116-118 is what I EXPECT and HOPE for a little more.
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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Old Jan 2, 2007 | 12:44 AM
  #17  
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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.
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Old Jan 3, 2007 | 09:49 PM
  #18  
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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
Originally Posted by unknown_host
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.
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.
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Old Jan 4, 2007 | 09:16 PM
  #19  
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Originally Posted by z28freak84
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.
You can call your ideas bench racing and we can call our experiences "real racing", how about that .
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Old Jan 5, 2007 | 06:02 PM
  #20  
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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
Originally Posted by unknown_host
You can call your ideas bench racing and we can call our experiences "real racing", how about that .
Alright, dont be a douche. Just trying to occupy myself through the winter. Im sure you're doing a lot racing right now.
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Old Jan 5, 2007 | 08:35 PM
  #21  
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From: Medford, Oregon
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Originally Posted by z28freak84
Alright, dont be a douche. Just trying to occupy myself through the winter. Im sure you're doing a lot racing right now.
I have done a lot of racing is what I am getting at, just trying to offer you advice.
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Old Jan 5, 2007 | 10:30 PM
  #22  
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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.
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Old Jan 7, 2007 | 05:01 PM
  #23  
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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
Originally Posted by BadAssNovas.com
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.
Thank you. Point proven. I dont forget that. Everyone else seems to. Thats part of, most of, getting decent times. Less weight, SLICKS or ET STREET/street radials, Drive the **** out of it.

Could you list your entire combo? cam specs, compression, etc.
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Old Jan 11, 2007 | 03:55 PM
  #24  
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From: Pittsburgh, PA
Car: 74 Nova
Engine: 383
Transmission: TH350
Axle/Gears: 3.73
Originally Posted by z28freak84
Thank you. Point proven. I dont forget that. Everyone else seems to. Thats part of, most of, getting decent times. Less weight, SLICKS or ET STREET/street radials, Drive the **** out of it.

Could you list your entire combo? cam specs, compression, etc.
Check my reply to your post in the "fastest vortec cars" thread. You can also read about my combo on my website: http://www.badassnovas.com and then click on the BadAssNova link. Pictures can be found under the BadAssNova Pics link.
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