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Swapping 305TPI for 350, what do I do about chip for 5speed car?

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Old 05-26-2004, 04:14 PM
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Car: 89 Firebird Formula(Totalled), 91 C
Engine: Mild 350
Transmission: 700R4
Axle/Gears: 2.73 :-(
Swapping 305TPI for 350, what do I do about chip for 5speed car?

Pretty much like the topic says, I got a Goodwrench Caprice Motor (part #12513151), and I'm swapping it in place of more old 305TPI, however its a 5-speed car, and no 350 came witha 5-speed, so what can I do about getting a chip for it? Please don't tell me to burn one I don't know how and don't want to get into that just yet for a stock engine. Thanks guys.
Old 05-27-2004, 03:53 PM
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Car: 89 Firebird Formula(Totalled), 91 C
Engine: Mild 350
Transmission: 700R4
Axle/Gears: 2.73 :-(
Come on guys someone has to know this, I know I'm not the first to put a 350 in front of a 5 speed
Old 05-27-2004, 04:04 PM
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Pretty much like the topic says, I got a Goodwrench Caprice Motor (part #12513151), and I'm swapping it in place of more old 305TPI, however its a 5-speed car, and no 350 came witha 5-speed, so what can I do about getting a chip for it? Please don't tell me to burn one I don't know how and don't want to get into that just yet for a stock engine.
For starters, you can replace the 19# injectors used in the 305 application with 22#s as used in the 350. I have found that it will run well, at least until you get into chip burning (which I recommend!). The ECM will resolve any minor tune problems on your stock engine. This advice stems from the fact that the 22s are about as much larger than 19s as the 350 is larger than the 305, thus the ECM hardly knows the difference.
On the other hand, I at one time used the 350 Auto chip with my 5 sp, and it had a host of issues regarding tune and driveablilty which were solved by going to the manual trans chip.
Hope this helps.
Harry
Old 05-27-2004, 04:11 PM
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Car: 94 Corvette
Engine: LT-1
Transmission: Freakin Automatic---For Now
I have a similar issue with my GTA. I just put a 6-speed in and want to be sure that the ECM knows what is going on. What I'd like to know is, will a Corvette manual chip work, or am I going to have to have one burned? I have little interest in burning my own chips until I start getting into engine mods. I look at computers all day, and don't want to dilly dally with one at home.
Old 05-28-2004, 10:51 AM
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I just put a 6-speed in and want to be sure that the ECM knows what is going on. What I'd like to know is, will a Corvette manual chip work, or am I going to have to have one burned?
I assume(!) that you changed from an auto to the 6 speed. In that case, a manual chip will improve your driveability whether it comes from a 305 or 350. The 350 Vette chip will run great, but has a nagging oil temp check routine that the F cars lack. In my case, I used the Vette manual chip and it gave me the oil temp check light periodically until I edited it out through chip burning.
Hope this helps
Harry
Old 05-28-2004, 02:59 PM
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Car: 89 Firebird Formula(Totalled), 91 C
Engine: Mild 350
Transmission: 700R4
Axle/Gears: 2.73 :-(
Thats fine and dandy, but what about the topic that I STARTED
Old 06-01-2004, 08:48 AM
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Car: 94 Corvette
Engine: LT-1
Transmission: Freakin Automatic---For Now
Sorry, I really didn't mean to highjack your thread. It sounds like we could both use a Corvette manual chip and be fine. I have also looked into some other options and founf that most chip companies will burn you a custom chip for a fee. Jet seems to be the big name group that is the most willing, but they are expensive. There is a guy on eBay(tpichips), as well as tpichips.com that will hook you up for a mere $104. You tell him what you have, and he sets you up with a chip.
Old 06-05-2004, 07:16 PM
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Engine: 350 TPI
Transmission: A4
Axle/Gears: 3.23
order a chip from FASTCHIP. get the stage 2 chip. It is around $160. That is what I did when I swapped.
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