82whiteZ28

what are some of the fastest vortec combo cars running? post some times plz..

xpndbl3

iTrader: (5)

typically you see people running low 12s high 11s with them.

82whiteZ28

i would love to know what the fastest vortec headed cars are running

rjt76

as fast as 400-450 hp will take while using no power adders.

82whiteZ28

yeah thats about what i was thinking. but do i need to bring up the joe sherman 539hp 383 for example.. it has vortec heads and it making huge power. i was just wondering if anyone else is making power like this.

rjt76

sounds like a lot of power for a street car. 540hp street driven 383 probably is not very forgiving at 1.4hp per cubic inch.

zz4monte

My freind makes 440hp and 500+ftlbs of torque with a 408 stock vortec heads performer rpm intake and a comp xe274.It has a $hit load of low end torque.He runs 12.4 with 2.0 60ft

PROJ91

I am runningb 12.4 @ 110 with 1.8 60'
I think if I can get it tuned properly maybe 12.1
She runs strong but it feels like there is just a bit more

82whiteZ28

PROJ91 what is your setup if u dont mind me asking

MaxxMitchell

iTrader: (4)

I have about the slowest one lol. Could be the fact that my last cranking compression test went 95,100,105,100,100,95,105,90. Hopefully the being built forged 383 w/9.6:1 and a xe274 will take care of that. Its so close, just machining, and actually buy the pistions/rings/gaskets.

88IROC350TPI

Friend of mine had a Vortec motor that ran 11.60's @ 113mph on motor in a true 3500lb car.... 10.8:1 (pump gas!) .060 over 400, unported stock valved Vortec heads, Comp's XS282 cam: 244/252 @ 050, .520/.540 lift, 110LSA, Super Victor intake, 750 Mighty Demon, junkyard HEI, 1 5/8" headers with dual 2.5" exhaust, TH350 with 9.5" 4000RPM convertor, 3.42 gear with 26" tall ET radial.

This motor was pretty amazing considering the weight and the fact that it was basically thrown together. Typically ran in the 11.7-11.80's on motor and 10.90-11.0's on a 125 shot. This car gets driven everywhere and anywhere, sometimes hundreds of miles a night going to the track then going on cruises looking for trouble.

Fbody891

what vortec heads are you talking about. i find alot of differnt kinds rangeing from these http://store.summitracing.com/partde...5&autoview=sku to more expensive ones like these http://store.summitracing.com/partde...5&autoview=sku sorry if this is a lil newbish but i allways wonderd which ones you were allways talking about

82whiteZ28

they are both the same design its just one offers a little more than the other..

88IROC350TPI. thats what im talking about those are amazing numbers for stock heads. do you know what kinda springs he has??

88IROC350TPI

heads were setup with Crane 99846 springs, screw-in studs, and the guides were cut down for both lift and spring clearance.

ross

The first head he has is the stock 170cc intake runner the second head is the bowtie votec head with around 200cc int and larger valves.

82whiteZ28

88IROC350TPI what kinda car is the motor in? stock suspension?

88IROC350TPI

It's in a 1980 Malibu only weight reduction is skinnies up front and a manual steering box. he even keeps about 80lbs worth of tools and spare parts in the trunk! Suspension is basically stock I believe he has some aftermarket control arms and an air bag in the rear.... doesn't take much to get g-bodies to hook up.

FJA

Finaly completed my 350 Vortec build up and took my 1987 Camaro to the track yesterday and here are the results.

60' 1.559
330 4.587
1/8 7.166
MPH 95.09
1000 9.405
1/4 11.313
MPH 117.74

The combo is a std. bore 350, flat top pistons with eyebrow, 170cc vortec heads, Perf. RPM intake, hyd. roller cam 237-242 @50 510.- 525. lift, 1.5 roller tip rockers, 9:8 comp. and runs on pump gas. Trans is a powerglide with a 4500 stall converter and 4.56 gears. Carb is a Holly 750 DP. Has 29X11.5 Hoosier quick time tires. Car weighs 3150 with driver.

ross

Those are some good #s fja congrats.

xpndbl3

iTrader: (5)

3150 WITH driver....that is insane. I think mine weighs that without driver and mine is pretty gutted as well. Of course the PG trans is a lot lighter than a TH350. Impressive numbers out of that cam though. good job. What are you turning for RPMs at the big end? I'm debating on 4.30 or 4.56 gears for my combo and like to hear real world mph vs. RPM

FJA

My car is a plain Camaro not a Z-28. It as a glass hood, no power options, chromoly roll bar, Weld wheels, and no heater box. Car looks factory stock. I will post some pictures. Trap RPM was 6600 shifting @ 6500. I think it can be shifted higher, maybe 6800. I will try that next time out.

Thanks Frank

82whiteZ28

FJA that is really impressive thats something i want to shoot for. except im assuming ill be a second faster on the gun., nice combo tho

xpndbl3

iTrader: (5)

nice times frank. impressive car to say the least.

z28freak84

WHo's cam is that? Whats the LSA, 110? Is that 237 a misprint maybe supposed to be 232, because I have a Lunati hyd.roller 232/242 .510/.525 on a 110. Im using .060 350 flattops about 10.5:1 after decking and milling, Prof.Prod. Crosswind(airgap) 600 dp to start($20!) and mildly ported vortecs.
I think with supporting chassis mods and weight reduction and a GForce T5 with 4.10 or 4.30's in hybrid 8.8" rear, Mid 11's and 114+ mph is not out of the question.

FJA

Its a 110 lobe seperation. The cam lift is .525/.525 the duration on the cam card is 237-242 @.050. It is a Lunati grind #RRA1-237-242. I hope this helps.

z28freak84

thats cool. I see now you say is .525/.525. The .510/.525 is what i got.
I wonder how my combo will compare to yours. I want my friend to let me put my motor in his 86 IROC pro/super pro car. Less than 3K with me in it, Glide w/ 4500, 4.56 with SSM suspension and Super comp headers and his 825 Mighty Demon. I think I could run with you in that car.
What do you think it will do?

littlebagz

Best run as follows....
60' 2.03
330 5.69
1/8 8.73
MPH 81.05
1000 11.31
1/4 13.41
MPH 105.73

Car is full interior and 6 pt roll bar. 100% stock suspension. Weight 3535 with driver. MT 26x9.5 slick. Open shorty headers. Run was at 15ft above sea level 92 Degrees 80% humidity.

Motor is 350 punched .060 over. Block is decked to 0 deck height, and .050 shaved off the heads, heads mildly ported (chambers are at 52-53 cc). 11.2:1 CR. Cam is a Crower 00351 solid flat tappet. 254/262 @.050 .525-.546 lift. 105 LSA (i personally think i went a little too big). The carb is a 650 DP. Timing is locked at 32 degrees.

I run a 700R4 (no converter yet) and a 3.73 posi. If i get a converter I think I should be able to dip into the 12's with no trouble. Ive only made two runs with this combo.

The same cam and heads in a 406 in my friends '72 chevelle 3375 lbs went 11.01 at 119 at the same track

xpndbl3

iTrader: (5)

little bags, that carb is too small and the cam is WAY too big for that converter, slap in a 3500+ converter and I think the car will really wake up for you. Also looks like you need to work on your soggy 60' times but I'm sure the converter would help.

82whiteZ28

yeah u defenitly need a converter in that thing, i would expect somewhere in the low 12's high 11's..

littlebagz

Thanks for the input guys. I agree it needs a converter, But I havent figured out how big yet as believe it or not i still have it registered and drive it on the street. I have not made the decision if I am going to make the car 100% race or not. If i decide to street it i think I will go with a 2500-2800 stall.

Yes it needs a carb, I just need to get some $$$.

This winter I would like to install lower control arm relocators, new shocks / struts. Rebuild entire front and rear suspension with polygraphite bushings etc....

I have a feeling that a converter and the LCARs alone will help take 2-3 tenths of teh 60' which will easily dip the car into the 12.7-12.8 range

88ROC1LE

iTrader: (4)

.

82whiteZ28

well littlebagz the cam u have in your car requires like a 3500+ converter and it really isnt that bad on the street.. i know guys with 4500 in their street driven ls1 cars.

z28freak84

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.
made new thread

xpndbl3

iTrader: (5)

lift on cam is much too large z28freak.

MattW

iTrader: (1)

i run a XE268 cam and run a 13.5 @101

my question is.... i see a lot of people on here running the XE274 cam and running well into the 12's..... will the stock heads support the lift of the XE274 or do they require machineing? i wanna break into the 12's but it looks like i wont unless i do a cam swap....

xpndbl3

iTrader: (5)

you need guides cut down, and spring pockets cut down and opened up, now is the time for screw-in studs as well.

conlinj

iTrader: (3)

I ran a 13.9@101 with stock 041 heads and the xe268, this is with street tires/3.08 rear/and crossing the lights in the top of second gear. Sounds like you need some tuning, with my new rear I should be at mid 13's since I can make it into 3rd now LOL. I am planning to put my vortec's on soon and hoping for a high 12 with them, I've read 2 other combos (xe268/vortec/4.10+28"slick) running low 12's.

WheelsUp84z

iTrader: (2)

damn, zero decked with 52-53 cc heads and you only make 11.2 CR you must have some serious dished pistons in that thing

TunedPort 335

WOW...that is very impressive. I have a 400 longblock in my garage that i'm planning on building sometime soon, and i have been eyeing the Vortec heads (stock and ported). Definitely nice to know.. considering i have a 3400 stall 700R4 and 3.42 rear

BadAssNovas.com

My Nova is running 11.50s N/A with unported GM 062 Vortec heads, 1.94/1.50 valves and a hydraulic flat-tappet cam on a pump-gas 383ci. Car weighs 3400# with driver. Ran 10.85 with a 125 shot.

82whiteZ28

what kinda cam are u running?

z28freak84

go check out his website(BadASSNovas.com), its pretty cool. It says its a Cam-Motion Custom ground hydraulic flat-tappet. He might not share the specs seeing how they're not even listed on his website. It sure would be nice to know though. BADASSNOVA, if you dont want to list, but are willing to share your info, my email is z28freak84@hotmail.com. I would like to discuss my combo with you, maybe you could give me some better info. I am taking this Vortec thing seriously. I wanna haul A** with these heads. I have got a complete car almost ready to run for less than $2K. If you would please hit me up on my email. Maybe we could talk on the phone.
Thanx for your time and consideration, Morgan.

BadAssNovas.com

Nothing to hide:

.495/.511" lift (w/ 1.5 rockers), 236/246 @ .050" on a 108 LSA, 104 ICL. The Vortecs have really good flow on the intake, but marginal on the exhaust. That is why they work well with an 8 to 10 more degrees of duration than the intake.

I don't believe the published flow data in magazine articles, especially after flowing these heads out of the box. Peak flow was 217 cfm @ .400". After a good valve job, we've got these flowing 237.5 cfm @ .450" on the intake and 178 cfm @ .500" on the exhaust, while maintaining excellent port velocity. Still got the tiny 170cc runners.

z28freak84

how good of a valve job? what was done? throat cuts, basic 3 angle, what?

also, I got a Lunati 232/242 .510/.525 on a 110 hyd roller or Crane 236/246 .510/.512 on a 112 hyd flat. Which would you use and why? I have a roller block that I am using. Which do you think will make more power with Vortec's. I have got a lot of ???'s. Your car runs GOOD and I wanna run good too. Any help would be great. If you are willing to I would really like to discuss this over the phone. I got a LOT of ??'s. If not thats ok. I talk here.

How does your timeslip look. 60', 1/8 et and MPH, 1/4 et and MPH. what kind of RWHP do you THINK you are making? Just curious. The more information I can stuff in this little brain, the better.
What is you COMPRESSION ratio? What size is that carb you got? What's you converter STALL to?
not trying to intrude, but I am fascinated with vortecs, and yours is one of the More with Less cars and I like it.

BadAssNovas.com

Well, my head guy won't disclose the details. I don't blame him for protecting his lively hood. I know he did some bowl work just above the valve itself, but nothing radical. Only cost me $350 and that included before and after flow testing and tearing down/assembling the valves/springs, etc.

The roller will always have an advantage over a flat-tappet cam, so that's what I'd recommend you run. You would probably benefit from running a tighter LSA though depending on your static compression ratio.

When running N/A, my 60ft times are around 1.55, 660ft around 7.3x @ 92-93 and 1320ft around 113-114. On a 125 shot, the 60ft times are around 1.45, 660ft in low 6.8s @ 100 and 1320ft around 10.85 @ 121.

I'm running 11.25:1 with Sunoco 93. I've got a custom-built Pro-System 4150HP carb (based on 750dp). My converter is a custom-built Pat's Performance 8" billet race converter. It flashes to 4500 off the foot brake (right where I'm making peak torque).

JFeaster

iTrader: (3)

Sorry to post this here, but is anyone interested in a set of vortecs I pulled off a bracket motor of ours? They have around 250 passes on them. Milled to 60cc chamber, 2.02/1.60 Ferrea valves, 5 angle valve job, screw-in ARP studs, Comp guide plates, 987-16 Valve spings, steel retainers and locks. Email me at jim@feasterracing.com if you are interested or would like more details. Ready to bolt on your shortblock. Would also let the centerbolt valve covers go with the heads.

Thanks,
Jim

maroon88iroc

iTrader: (7)

are either of you guys running tpi with that cam? if so who did the tune? i have been considering going back to tpi for gas milage and driveability, and most of all hood clearance. but right now i have a street dominator and 650 dp w/ the 2.73 gears and a 2500 converter and it did 230 horsepower on the dyno. i am in the process of swapping in 3.45's. i dont have any track time with this setup but its good to hear you guys running mid 13's my goal is low 13's n/a. i also have 150 shot to hook up as well but hood clearence is a huge problem at the moement. with the new rearend in im hoping to turn up some pretty good times. im not too familiar with this carb stuff yet but hopefully i can get it running good.

xpndbl3

iTrader: (5)

i fit a nitrous plate, 650 dp and a performer rpm intake under the hood of my camaro, don't see how you're having trouble with it. Had the choke horn milled off and ran a low drop air cleaner.

MaNiAk86

iTrader: (2)

4" cowl FTW!
I ran the xe274 flat tappet( fail... ) now...im running the comp muthathumpr cam (235/242@.050 .522"/.511" 107 lsa) on stock(170cc w 1.94s) mildly ported, rpm airgap, qf750. 2800 stall and stock 3.23's. w the old cam it went 13.07 @ 107 with a 2.1 60ft(street tires)
Vid - http://www.youtube.com/watch?v=v1tsOhJ1zLw
next im goin to a 3800 stall and a real gear and hopin for low 12's na

Fast 383

iTrader: (2)

How do the Vortecs compare to alluminum L98's with bigger valves?