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Mild setup, what do you guys predict for 1/4 mile and horespower. Godswill my motor is going to be done soon. Iv been ordering parts and working on things with it for awhile now and I should have it up and running next week with pics and videos too. Here is the setup let me know what your predictions are guys... 85 camaro stock open 3.08 rear Motor is a 69-80 0010 350 4 bolt block. Bored .40 over making it a 357. Comp cam .488/.490 lift 110 lsa 230/236 @ .050 High flow water pump Mid mount alt setup Edelbrock performer RPM intake 200 cc Dart iron eagle heads with 72 cc chambers-they are highly ported with 2.02 valves with guideplates and screw in studs Speed o motive springs good for .550 lift hardened push rods 1.5 long slotted steel rockers Holly 750 vac sec carb fresh rebuild with new jets and accelerator pump nozzle K&n 14" round airfilter Hedman shortie headers Hedman Y pipe Gutted cat Hooker Aerochamber catback Tranny has been rebuild lass than 5k ago and said to have been rebuilt stronger by the shop Everything minus the dash and front driver seat has been gutted Car has a lightweight 2 inch fiberglass cowl hood Im planning on putting a posi ls1 rear with 4.10's and drag radials for when I finally take it to the track Let me know what you guys think the motor will make in power as it stands in the 1/4 with the Rear & DR's in the 1/4. Thanks fellas. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. do you have any suspension mods? im thinking a mid to low 12 sec car as it sits now. id also consider 373's instead of 410's youre cam dosent have much lift for the lower (higher#) gears. do you have a stall converter? |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Is that the XE268 cam? Without knowing what converter you have, it's up in the air what you would run. Stick with the 3.73's. Compression is probably pretty low with those 72cc chambers matched with the small lift, I would think 13's are attainable but thats as far as you will go without changing anything. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Its the xe274h cam. No stall at this point looking at getting a 2800 when I swap the gears, leaning toward 3:73 from what a few others have said as well. I also would be putting lca's panhard bar strut tower brace and drag radials on. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. ^ sounds like a nice combo.. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. i say high 13 or low 14 |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Low 14 or mid-high 13. I'm betting your car is somewhere around 3000 lbs gutted like it is but you have a pretty tame set-up so don't be disappointed... It's still respectable. What are you doing for an ignition system? Fuel supply? What about tires for racing? Wow there are a thousand questions I could ask right now to give you a better answer... |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. As it sits 225 50 16...race day 255 50 16's untill I can afford a set of M/T DR's. Fuel is supplied from a 110gph holley mechanical fuel pump to a duel inline feed to the holly 750. As far as ignition is concerned Ac delco distributor with accel sparkplug wires. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Whats holding you back: 1) 85 camaro stock open 3.08 rear... get that 4.10 rear as fast as you can. those 3.08s, and especially the non-posi unit, are definately going to hold you back from a neck snapping launch 2) 200 cc Dart iron eagle heads with 72 cc chambers... unless youre running some kind of crazy high compression piston, or planning to add boost VERY soon, 72cc chambers are to big for your setup. 64cc would be better 3) Holly 750 vac sec carb fresh rebuild with new jets and accelerator pump nozzle... vacuum secondary carbs are mainly for street driving and cruising, for max performance, go with a mechanical secondary carb 4) Hedman shortie headers w Hedman Y pipe... just a slight step up from the factory exhaust, a good set of long tube headers will really wake up that motor, especially with 236 degrees of exhaust duration in your cam with the above fixes your car should be an easy low 12 sec ride if its suspention/tranny/tires are all matched as well |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Should be a decent street motor, but doesn't seem ideally matched up. Those heads have BIG chambers, and are going to net pretty low compression. The cam has a lot of duration, but not as much lift as you head woud tolerate. Dynamic compression is gonna be pretty low. Maybe the heads can be milled down some to bring back compression. Or, get a blower cam and a roots style blower. That much duration in the cam is NOT going to play well with a stock converter and lazy rear gear. 3000rpm stall and 3.73s would probably knock at LEAST half a second of whatever et it'll run w/o them. I'd say a low 14 or high 13 is possible, stall and gears w/ good tires will probably drop you the better part of a second, and more compression would make a decent combo a much stronger one. Converter/gears/slicks/good compression would put you much closer to the 12's, if not in them. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower.
Originally Posted by tpivette89
(Post 3862163)
Whats holding you back: 1) 85 camaro stock open 3.08 rear... get that 4.10 rear as fast as you can. those 3.08s, and especially the non-posi unit, are definately going to hold you back from a neck snapping launch 2) 200 cc Dart iron eagle heads with 72 cc chambers... unless youre running some kind of crazy high compression piston, or planning to add boost VERY soon, 72cc chambers are to big for your setup. 64cc would be better 3) Holly 750 vac sec carb fresh rebuild with new jets and accelerator pump nozzle... vacuum secondary carbs are mainly for street driving and cruising, for max performance, go with a mechanical secondary carb 4) Hedman shortie headers w Hedman Y pipe... just a slight step up from the factory exhaust, a good set of long tube headers will really wake up that motor, especially with 236 degrees of exhaust duration in your cam with the above fixes your car should be an easy low 12 sec ride if its suspention/tranny/tires are all matched as well I totally agree with tpivette89 on everything. That rear end swap will make a huge difference. Before those changes I'm pretty sure your car will run 13s all day. I mean, my car has totally virgin cylinder heads and half the camshaft your engine has. I also have shamefully tiny 1 1/2" headers(LTs) and already posted a 13.7@101mph |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Only one way to find out. Get some bracing in the car as well as your car is going to start flexing once you get a stall and hit it off the transbrake |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Came across this thread while doing some researching thought id bring it back from the dead for kicks. I ended up running a 15.x 14.x and 13.6 after that last post,tires were bald as poop and exhaust was leaking all over the place. Dynoed 198hp following weekend,then popped the heads to find two ringlands tore to pieces. Since then iv been working on the car as much as possible between joining the air force and saving money im finally about to give the newly built motor its first test drive, ONCE its out the exhaust shop and i can figure out why it wont idle and run right(seems like a vacumm leak) New specs 85 camaro with a 99 trans am posi 3:42 10 bolt with ls1 brakes stainless steel brake lines 99 brake master cylinder correct thirdgen brake porportioning valve 18" 9.5" wide wheels all around wtih 275s in the back and 245s up front Motor is a 72 0010 350 4 bolt block. Bored and stroked to 383 using a cast Eagle stroker crank Scat forged i beam rods SRP high compression dome pistons Comp nitrous cam .507/.525 lift 113 lsa 240/253 @ .050 High flow water pump with lightweight flex fan and 1"spacer all new clevite bearings double roller timing chain Mid mount alt setup Torker 1 single plane intake Arp intake bolts and main rod bolts & I believe ARP main bolts 200 cc Dart iron eagle heads with 72 cc chambers-they are highly ported with 2.02 valves 5 angle valve job with guideplates and screw in studs Speed o motive dual springs good for .550 lift hardened push rods poly locks high flow high volume oil pump moroso 7qt baffled oil pan powerforce 8" harmonic balancer 1.6 magnum roller tip rockers Holly 750 vac sec carb brand new 8.5mm wire new plugs K&n 14" round airfilter Hedman long tube headers custom 2.5" true dual mandrel bent over the axle exhaust with borla mufflers and tips Spohn torque arm and tranny crossmember Energy Suspension Poly motor and trans mounts Founders performance poly lower control arms and relocation brackets Poly adjustable panhard bar 2" lowering springs Sway bars removed Tranny has been rebuild lass than 5k ago and said to have a shift kit in it Everything behind the dash including all A/C and heat components and non needed wiring has been taken out new carpet put in after removing everything from underneith(wires that black goopy stuff loose change) Front DAⱭ racing seats rear seats are gone 4th gen center console and 92 trans am radio pod Car has a lightweight 2 inch fiberglass cowl hood What do you think itll run now? |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. no one? |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. 12.5's |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. thats on prediction :) keep em coming any one else? Im thinking 11's easy with out any juice |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. No reason that shouldnt be a mid higher 11 second car if you had/have : 1) 3500 or so stall 2) slicks and good track prep 3) good suspension work. 4) If those heads are really well ported |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. suspension is all new, mostly stock with poly adj lca/lcarb, adj panhard bar,adj cross member mounted torque with double drive shafts Ordering tubular a-arms this week 3200 nitrous stall non lockup dart iron eagle 200cc heads with 5 angle valve job and full port job ill be running M/T dot ET streets on my 18"s for the strip and 2010 20" camaro wheels on the street Im just hoping to break into the 11"s all motor |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. well damn get this thing together so we can see who was closest |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Getting there, currently got it running and it needs timing and tuning and im gonna order a new stage 2 transmission because this ones shot or somethings wrong, wont shift outta 1st but it sure does pull hard as hell in first :) |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Nice make sure to post up the times or PM me or something haha! |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. 2 Attachment(s) not much progress but added got the 2010 camaro wheels on today...still need to get hubs bored for the rear and smaller tires so their wont be any rubbing but they mostly fit :) |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. You run a shop jersey? or work at one? shop looks clean! mine's a pigstye! not enough room and we are pack rats |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Wish I had my own shop the car is at the auto skills/hobby shop on base, they rent out bays for cheap to use per hour for military members. |
Re: Mild setup, what do you guys predict for 1/4 mile and horespower. Oh. Thats pretty sweet! hence why it is so clean! |
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