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| Stock 4.9 1/4 mile times? (Page 7/29) |
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Will
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AUG 30, 09:12 AM
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| quote | | Originally posted by MaxCubes: 
If I was doing a 4.9 swap, I would bolt on this puppy. More flow and easily adjustable for best performance. The factory setup is hard to work with. |
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I'd maybe use the aftermarket throttle body, but I'd stick with the GM computer. MUCH better tuning possibilities.
Or I could just not worry about it sine I have an Allante intake sitting on the shelf in the shed... ------------------
Punch the gas and feel the back step sideways; rip off a powershift and hear the tires punished by torque; downshift, lift off and feel the engine braking that only comes from big cubes, listen to the pop and gurgle. Know that you are driving an American V8. There are finer engines made, but none that are this cool.Luck, Fate and Destiny are words used by those who lack the courage to define their own future
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86fieroEarl
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AUG 30, 09:13 AM
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| quote | | Originally posted by Dennis LaGrua: One key factor in ET's is the FDR. The Cadillac 4T60E trannys typically had la ow numeric FDR like 2.73. THis ratio may be great for highway crusing but not optimal for drag racing. LOcate a 4T60E w a 3.33:1 FDR and my prediction is that your 4.9L will "blast off". The question then becomes, do we have any revs left at the end of the 1/4 mile w the 4.9L using the 3.33 FDR.
BTW, PBJ is achieving great performance with a Turbocharged 4.9L not a stock engine. As you might guess turbocharging makes a huge difference in horsepower as PBJ's low 12 ET's show. |
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Yulp the you hit the nail on the head there.... Most caddy trannies is geared like that........ My th-440 was geared like that.... After going through the mess of putting a broken 3:33 Final drive th-440 I decided to take the TC off of the broke one (2000 stall speed) and put it on the one that worked with the 2:73 and the results were...... Very awsome  since the broken tranny was newer then the one that was in the car. Alot of the 2.73 gear ratio caddy trannies only have the 1500 rpm stall speed TC.
The results were faster launching and shifting at 4500 Rpm from first gear.... Thats what I wanted and the reves is kept down on the highway also..... If it was not for the hard downshift problem I have with it then I would of kept this unit inside the car. So a little pointer to anyone using a high FD caddy tranny.... You might want to consider getting a higher stall speed TC.
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NY_FIERO
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AUG 30, 09:27 AM
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Now that we have the attention of some of the best PFI tuners.. I have a few questions...
I had a 49 caddy givven to me.. the car runs great and has for along time (it was my brothers) .
I plan on doing this swap but I have a stick (4 spd 86 SE v6).Here go the questions.... Sent to 4.9 informed individuals.. not flamers... 1. Will the grearing be good? ( I care-not about MPG as it is not a daily driver and I work for XOM)
2. I am not a dragster and the car will never see a strip.. but what type 1/4 mile can I expect...
3. what are the best mounts.. I believe 86fieroEarlhas some mounts in the mall...
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NY_FIERO
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AUG 30, 11:27 AM
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HMM I got the attention of the masters and they are already sick of my questions (hehe I'm just kidding)
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Arns85GT
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AUG 30, 11:31 AM
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I don't have the 4.9 but I do have the 3.65 Muncie 4 speed. I think that is your tranny. The tranny is the quickest combo for 1.4 mi. time and that is well documented for the 2.8. The real problem potentially is that your final gearing is not great for highway. I am doing about 3,000 rpm at freeway speeds, 65-70. That will be a bit of a gas hog with a 4.9. With the 4.9 it will really go! It will absolutely blast off.  Good luck! and congratulations. Arn
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The Punisher
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AUG 30, 06:09 PM
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I tried calling you Earl. I am ready to do this. Get this thing settled once and for all. Check your voicemail.
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Black-Azz-GT
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AUG 30, 08:18 PM
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| quote | | Originally posted by The Punisher: I tried calling you Earl. I am ready to do this. Get this thing settled once and for all. Check your voicemail. |
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I'll race him when I come that way for the fantasy of flight cruise in.
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Master Tuner Akimoto
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AUG 30, 08:51 PM
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If any thing's left of him I want a piece too(vulcher) 
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The Punisher
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AUG 30, 09:25 PM
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| quote | | Originally posted by Black-Azz-GT:
I'll race him when I come that way for the fantasy of flight cruise in.
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Thats fine with me. You can lose too. however I think you plan to have an ace up your sleeve. You did mention saying that you would rather overnight a nitrous kit just to make sure you wouldnt' lose to a 2.8. You are one of those people that prob think a "v8 engine can never lose to something smaller" mentality. all I can say is bring it on.
Master: Off the bottle it would be a close race. With you on the bottle I wouldnt' even bother. I know what you run. SH
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Black-Azz-GT
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AUG 30, 10:19 PM
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| quote | | Originally posted by The Punisher: Thats fine with me. You can lose too. however I think you plan to have an ace up your sleeve. You did mention saying that you would rather overnight a nitrous kit just to make sure you wouldnt' lose to a 2.8. You are one of those people that prob think a "v8 engine can never lose to something smaller" mentality. all I can say is bring it on. Master: Off the bottle it would be a close race. With you on the bottle I wouldnt' even bother. I know what you run. SH |
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Dude, your a looser. People that assume in life generaly loose in life. You assume that I think, "a "v8 engine can never lose to something smaller" when you're the one that is cramming down everyone's throat that your NOS breathing 2.8 is they way to go compared to an over priced 4.9 install." Seems to me like you're that guy that is "never wrong". My passion in life has always been cars. I like Imports and domestic. I've had FAST cars, quick cars and cars I thought were fast because that is all I could afford.
I've had lots of cars including 3 fieros, 92 MR2 Turbo, 2 Berettas, Grand Prix, 2 Mustangs plus more. Now at 26, I have a VTEC V6 Accord EX and a V8 Fiero. The fiero is my acheivable dream car. Why did I get a 4.9? Because I cant afford a SBC. I know cars. Im not some chump that thinks he does. So I guess you assumed wrong, again. So, do you still assume that I will loose? ------------------
-Chris -
Custom Gun Metal 86 GT 4.9 V8 5spd
Build up tread or MODS w/ Pics [This message has been edited by Black-Azz-GT (edited 08-30-2004).]
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