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"Merchant of aggressive hostility and know it all attitude" fits better. xlr8or chips in a little to offer up a helpful comment and there you are to dump all over them. Gee, with your expertise so prevalent and obviously beyond reproach, we don't even need to ask others their point of view or opinion, we have the self proclaimed "Merchant of Cool" to guide us. |
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Your another one who knows just enough to be dangerous.Here's a news flash for you:Incorrect info doesn't fall under the catagory of "HELPFUL". In closing,you do nothing but latch on to a "title"like it actually means something.If this the best you can do(and it is),you really need to hire a writer.Here's novel idea,why don't you dis-prove my comments about timing instead? |
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Why don;t you call SA and ask him your gear question. I would think he knows his engine, and what would be the best gear set-up. |
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thanks
Why don;t you call SA and ask him your gear question. I would think he knows his engine, and what would be the best gear set-up.
I did, he said the 3.31 would be good and pull real well but the 3.42 would be better. |
I believe there is indeed such a thing as 'light cruise' vs 'heavy cruise'. Example that comes to mind is Interstate Highway 3 (H3) here in Hawaii. And don't get me started on the "Interstate" thing on an 'Island'. :D
Anyway, it's a modest grade and one of our local guys (Hi Cobra, Flip) has noted his 351 with T5 in OD 'struggles' up the grade at cruise speed. This is what I would call 'heavy cruise' load vs light cruise load. SO, he adds a little aviation fuel (readily available to him) to his premium fuel and is able to cruise comfortably with the higher octane rather than downshift. The higher octane is not required on the more flat H1 and H2 highways under 'light cruise' conditions. :LOL: |
Do you guys think I made a mistake with this setup: TKO 600, 0.64 OD, 3.77 rear end, 331 stroke with Comp Cam 280 HR10 cam (HYDRAULIC ROLLER: Street machine and limited high performance street use. Best with 5 speed, 3.40 to 4.10 , aftermarket intake and headers.). This setup should produce 2500 rpm at 78 mph. I'm in West Texas with little traffic and 70 + mph speed limits on the highways so I'll be going 70 - 75 mph most of the time. It was this setup or the 0.82 with 3.54 which would produce 2500 rpm at 62 mph.
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It's possible that cam will work quite nicely at 2500 rpm. ANOTHER big problem I have with a typical T5 is the ultra low first gear, when you combine that with a 3.5 or especially a 3.7 it becomes all but useless. You could use 2nd gear to start out and very likely get BETTER 1/4 mile ET times using 2nd to launch! 1st becomes a 'stump puller' tractor ratio, a real tire smoker of a ratio (might be fun :D ).
WATCH out when you grab 2nd gear in a corner even with LIGHT throttle, it will break the tires loose and swap ends on you in a heart beat. I know, I used to run a 3.5 rear with a T5 and Goodrich TA tires, whew, what a lousy combination for traction that setup was. I 'spun out' THAT car with it's measly STOCK 302 more often than I've ever spun my ERA with twice the horse power. The ERA has some fat tires, great traction and a MUCH higher 1st gear ratio. That all adds up to 'control'. Myself, I'd shoot for gear ratios eqivulant to a wide ratio or close ratio top loader with a 3.5 rear gear and a .8 OD AND some 'sticky tires' (for safety). I think that would be the perfect all around gearing setup. |
[quote=iwantacobra427;828729]Do you guys think I made a mistake with this setup: TKO 600, 0.64 OD, 3.77 rear end QUOTE]
I think you'll love this set up. 2.41 final drive is pretty good for cruising. it's the guys that go nuts that get into hot water, with a final drive around 2.0! All a gear that tall will do is bog the engine unless you're running at Daytona. I always like my final drive to be in the 2.50-2.70 range and you're RPM will hover close to the beginning of the power ramp of the cam at cruising speed most of the time. That is the ticket....probably more than one, too....:o Just monkey with the REAR gears until they suit your trans. A lot easier to find differential gears than get Tremec to make a trans for you! |
I bought the TKO 600 over a year ago before Richmond came out with their 0.75 OD. I think a 3.54 with the Richmond would be nearly perfect for all around driving. I'll just have to get a pair of 295 Avons out back and shift into 2nd at around 30 mph (~4250 rpm)!
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Remember back in the day when guys would talk about their engines coming up "on cam"? It seems with all the really good tech info on this thread about cam profile and ignition advance, without knowing it that's what we were talking about back then.
When it all comes together and the engine hits it's "sweet spot", you want that to happen by the time you hit your normal cruising speed. I have a fairly hot solid roller going in, and a 3:31 rear. I chose the .82 TKO trying to keep the engine in it's slightly higher than normal RPM "sweet spot" during cruise. I know, it's not a highly technical term, but sometimes easier is better.:cool: Sort of the KISS principle. :LOL: By the way, just FYI, I got my .82 TKO 600 in two days from Mike Forte. He's got a bunch he keeps in stock, great guy to deal with as well. I was very pleased to work with him. |
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You are an arrogant prick. Of course you already knew that. :rolleyes: |
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Let's assume for the moment you are right, how about a little humility and kindness towards others whether they're right or wrong. No such terminology as "light cruise" and "heavy cruise"? Sounds like an opinion to me, not fact. What's the difference between "wrong" and "completely wrong"? Either you're wrong or not. "Lighten up Francis" (Bill Murray in the movie Stripes). :D |
I have 3.54 rear gears and the TKO600 0.64. 65 mph is about 1900 rpm, mileage between 20 and 21mpg. The engine cruises fine at that level and accelerates without loading up unless the pedal is suddenly floored. For "instant" (rarely needed) acceleration I downshift.
If I was to do it over again I would probably use 3.77's with the 0.64 or go with the 3.31's and the 0.82 OD for better response. |
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