Hey Everyone.

Well Ive finally gotten serious with my car and im on a quest for 11 second time slips. But of course, deciding on what will work, well we all know how that goes.

Anyway, Motor is a 355ci SBC with around 11:1-1 compression.

Heads are AFR 195cc without the competition package. Carb is a Holley 750 DP, car has a 4000 stall, 4:10 gears and 26inch tires, will weight about 3500lbs when complete in race trim.

Now the tough part, which cam and intake to use.

Right now, ive been Suggested, XS282S and RPM air Gap, XS282S and Vic Jr, Magnum 294s and Vic Jr (yes I want to run solid flat tappet)

choices choices. also I don't have the hood clearance for any spacers or the supervictor intake.

Right now im thinking XS282S and Vic Jr. Suggestions Please.

 

No one has any Suggestions?

 

reduce weight by a couple of hundred pounds and get a cam that has some lift in the .55-.56" range and it will be in the low 11s

as long as the weight is >3400, I say stick with the dual plane.

 

i have a similar combo in my car.I have a 350 +0.06, 294S,weiland team g, 750 dp ,13-1 compression. The best time i ran with this combo was 12.30`s @ 111. To get into the 11`s u probably going to need to spray it also.

 

try lunati cam 40148 and a good single plane. it should perform well.

 

First and foremost, dump the mass production Comp stuff and give these guys a call http://www.bulletcams.com/ go faster with less.

Secondly weight has nothing to do with intake selection It's about maximizing the engine combination. Should he choose a small duration then stick with the dual plane, but with that kind of gearing, and that short of tire he's gonna be spinning well over 7K at the stripe so he's gonna need something that will breathe and make power mid-high rpm.

 

If you like comp cams stuff you can try the part # 280tls-6 specs are deg at .050 I 250 E 259 lift I .530 E .550 lobe sep 106 that will work good for your combo thay also have a less agresive cam part # 280b-8 duration at .050 I 242 E 250 lift I 507 E 532 lobe sep 108 I have had good luck with the 294s but it is right on the boarder line for your weight I have one in a 355 had comp cams change the lobe sep to 106 with a rpm air gap car runs 11.7 but the car weighs around 3300lbs I like the rpm manifolds but I would try the vitor manifold on this combo

 

Just to be clear, I was not speaking as a generalization about weight being over 3400, I was refering to this specific combination. Especially bc of the displacement.

There is a publication called how to run 11 second ets 82-92 fbodies. It reenforces the importance of torque on third gens.

The writer says the vehicle went .08 faster with the performer rpm and it was all in the 60foot time. The combination ran 122mph with a 4.1 gear (and 28" tire) and was turning 6200 in the lights.

The writer also says it would be differnt if it was 500lbs lighter, more gear and also a looser converter.

PS, this was a 400 based motor and was never was run more than 6000 before shifts and the solid cam was 248/254 at .050".

It is a package deal I admit, but the intake can be very important even crucial.

 

Hey Guys Thanks for all the replys.

The Reason I was talking about the 2 comp grinds is b/c I can have the XS282S for free (broken in on the Dyno then pulled) and being in Canada, Comp, Crane, and Lunati off the shelf ginds are plentiful and cheap.

As Far as weight goes, 3500 was an estimate of what the car would weight at that stage of dissasembly, lol its right to the frame now and alot will not be going back in, so I have no idea what it weight, but there will only be the bare minimum.

I was planning on Running a 15X10 Drag wheel with a 26X10.5X15 ET Street (no inner fender mods), if thats to short might try and get a 28inch to fit.

Also now to stay competative, I think im gonna do a fogger also, something in the 100-250 range. but getting it there on motor is the still the main goal.

 

If your gonna do nitrous, keep a 28" tall tire, you will need that rpm in reserve for when you make the hit.

 

Forsure, did you have to modify your fenderwells to fit those 28X11.50X15's on a 10X15 inch rim using a 5.5 backspace.?

Also I like the Lunati and Comp grinds that have been suggested.

Im also trying to stay away from the custom grinds, not cause they don't work, more the cost of getting one up here is almost 5X the cost of an Off the shelf Comp/Lunati Grind.

 

These wheels took the standard front inner wheel well hammer massaging that's typical for our cars, nothing major.

Who in the heck is feeding you this custom grind costs more than a standard stick? I had mine custom ground, 1 week to deliver and exact cost as any other solid roller. They may charge an initial set-up charge to enter in the new program on the CNC, but other than that there's nothing different.

If you want a good solid grind for your intended purpose/rpm range/tire size/convertor and use of nitrous and stuck on running a Comp
Comp P/N #12-609-5

250/260 actual @.050, .532/.555 and 106LSA

This will be a pounder with your set-up and work great with the nitrous.
Stick with the open plenium because your way out of the dual planes range with your set-up. Then just try not to crack your face in 2 when you drop the hammer and the smiles get big")

 

Righton man.

Im not really stuck on comp its just that shipping/duty/exchange/and somtimes customs is a nightmare shipping to Canada. Even ordering parts from Spohn or Summit is quite a hassle with alot of extra expense, so if I can buy an off the shelf grind from a local discount speed shop like Mopac Auto Supply or Bestbuy auto with my company discount, then it makes things alot easier.

Thanks for the suggestion and all your post.

Thats rad that u only have to do the minor well massaging to fit the 28's, im forsure gonna go that route now.

Forsure a vic jr, maybe if I used the XS282S I would have considered a RPM but now I totally Agree that Vic Jr is the only way to go.

Thanks Everyone for your imput.

 

Alright boys. Time to step it up.

355 plan is scrap, now looking to do 4XX inch SBC.

Got that XS282S cam for free with lifters.

Plan is to run a fogger, So VicJr.

thinking 434 using MoTown block, anyone ever spray a 434? are the tight ring lands and skinny rings a problem?. Would 415ci be better.

How much power would the AFR195's make before they top out.

 

You'll kinda be selling yourself short running that kind of shortblock with those small heads. You should really be running at a minimum the 210's if you wanna street drive it, but the 227's or 215 raised ports would be the best considering the cubes and the nitrous.

Based on the 195's cfm, mathmatically the most hp you'll see is 580.92 since it'll be limited by what the heads can flow.

Also, throw that cam in the garbage if your going to step up with what your saying. Your gonna have alot of money into an engine that wont perform nowhere near it's potential.

 

LOL yea, its not going into the race motor, just typed that off the top of my head. lol im sure I will find a nice farm truck to put it in.

Yea hrm, really wanted to use the 195's but whatever, gotta go with what works. should just order up the sharinoff ultra street there and get it over with lol.

 

Iroc4Life,
Colin (ceedubya on F-Body Generations) at Performance Plus in Saskatoon might be able to get you a pretty good deal on a custom grind from Cam Motion.

Do you already have the 195s?

 

Yea Trevor had the 195's on my stock bottem end 355 with low compression 9:25-1 or so, comp solid flat tappet, RPM intake, 750DP holley (rebuilt).

Ran 13.3@108 on the G tech with Th-350/10 bolt with 3:08's and Street Rubber, looking to do a little better.

Yea I might give colin a call, I just found out he deals in Cam Motion.

Also Good to see the bird is getting a 406 there Trevor. with a big solid roller to boot.

 

Figured its time for a 400 as I've been through a 305, 357, and 388 already with this car. Hopefully the motor is put together by the end of next week and with any luck I'll be ready to roll for the season opener on May 29th.

Do you still have 3.08 gears in your car?

If you have msn, my handle is transam__86@hotmail.com

 

Bah I quit.

IHI im just going to copy you k.

 

Just do me a favor and use a 421 sb, these same heads, 11.3 compression and a larger cam, I wanna see how low in the 10's it'll go on pump gas

Give me something to look forward too.

 

LOL I wish I wish.

What about my AFR195's on a 383-388 with a custom solid roller, VicJr and 750DP (4779) with about 11:3-1.

 

The 195's will work great, they'll be the limiting factor for a super fast track scortcher, but I think you'll be plenty happy (for now) in what it'll do. With my small stuff (cubes and cam) Im not even utilizing my 210's yet to the fullest.

With the right combination you could easily go high 10's N/A with the 195's.

 

IROC4LIFE,
A guy from Sask here started out building a mild street engine for his 72 Chevelle with some AFR 195s and then ended up building a 406 to fit under the heads and stuffing it into a second Chevelle (to be his race car).

Its a 6" rod 11.0:1 motor with 195s, a solid flat tappet cam (approx. 255/262), a knock off Vic. Jr., Speed Demon 850 DP, 1.75" LTs, 4200 stall, 12-bolt w/ 4.56 gears, maybe 3100 race weight. Anyways, he ran 11.40s @ 115 in Saskatoon (1800') his first weekend out and thinks with some tuning and better weather he'll be in the in the 10s easily this spring. With his gears he was buzzing it pretty high through the traps and said that it was still making good power at close to 7000rpm.

I am interested to see what my combo will do with the 195s this spring.

 

If It does high 10's (even 10.99) I would do a backflip.

I think thats gonna be the plan, 195's, 383-406 bottem end, Custom Solid Roller (cam motion most likely) Vic Jr, 750DP, 11:3-1 and all my other goodies. Should be killer, if its that fast I won't even bother with nitous, more than enuf for this car.

 

whats the right combination??

 

Very open question and answers vary depending on application/intended purpose of car.

Personally I'd just make sure Bullet gets a call for the cam (do more with less...just think if you had a big cam ground from them what would happen!!)

Then it's just matching intake to work in desired rpm range of cam specs, convertor with correct stall so it goes to peak torque on the hit, rear end gearing to keep engine in power band going down the track that does not have excessive slip, and tire size to work with gearing so you stay in powerband and cross traps right at the end of using all the motor. more to it than that and every application different, contact http://www.bulletcams.com and be done once with right cam!!

You've got great heads, dont pair them up with a less that perfect cam!!!

 

When I submitted a request to Cam Motion this winter (setup in signature - only change was 388cid then), I got the following:

RECOMMENDATION
Grind Number R2551-2604-10+4
Duration (intake/exaust) 254/260
Lift (intake/exaust) .686 (1.6)/.652 (1.6)
Lobe Center Separation 110
Intake Centerline 106
Comments SMALL BASE CIRCLE HOT LASH .024
Price US$290.00 + SHIPPING

 

I can say this, the truck I run has a Comp mech roller with IDENTICAL specs as the one in my car as far as duration advertised/actual, LSA, but has a ton more lift mine .621 his .672/.721. That cam is in a motor with 2 points higher compression with Dart 230 pro 1's and 900lbs lighter and is only .3 faster than I am.

Cam for cam since all is identical except grinder and lift, which do you think is making more power, his or mine?

 

It seems odd to me that they reccomended a cam with significantly more lift to me than than you. Your heads flow much better at .600 and up.

 

I just got off the phone w/ Bullet cams, they picked out something very similar to what I'm running. So it makes me feel better about my choice. Here it is:

288/296 adv.
236/244 0.05
.568/.576 w/ 1.6r
and 108 LSA

What's in the car: cc306
290/307 adv.
230/244 0.05
.544/.576 w/ 1.6r
and a 112 LSA

I wasn't expecting them to call for a 108 lsa. I know I should probably run a 110 but oh well.

 

All the guys running Bullet cams told me to be prepared to second guess the specs they'd tell me over the phone as they'll sound small....but just run it and be prepared. They were right, dont know what they do when they're making the grind and programing numbers into the cnc, but their cams make some power-period!!

Are you going to run it, or just called for reference? I'm still trying to find the cam card for the Comp in the truck so I can see the valve events and compare them to mine since that is the obvious difference as everything else is the same.