C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Headers are in...what next?

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Old Jun 23, 2010 | 11:29 PM
  #21  
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The RPO sticker says GM3 so i guess it's a 3.45 ratio

Last edited by rogerdoger1993; Jun 23, 2010 at 11:30 PM. Reason: grammar
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Old Jun 24, 2010 | 12:10 AM
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On a stock engine headers aren't worth alot. But the more power you make the more they will help you. So they may be worth more down the road if you do more mods.
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Old Jun 24, 2010 | 12:21 AM
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In your pic of the exhaust pipes it appears you have new motor mounts. Did you get new mounts or re wrap the old ones? If you just re wrapped where did you get that material? Thanks

BTW pipes look good
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Old Jun 24, 2010 | 12:56 AM
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Originally Posted by Weav's Vet
In your pic of the exhaust pipes it appears you have new motor mounts. Did you get new mounts or re wrap the old ones? If you just re wrapped where did you get that material? Thanks

BTW pipes look good
Actually the motor mounts and wraps are stock. I did however, wipe them down with a rag when I had the old manifolds off.
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Old Jun 24, 2010 | 08:33 AM
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What next? Enjoy the ride,take it to Byron this fall [cool air].Summer time mods should be quick and easy for us northern boys. Injectors and 02 sencors cut 2 tenths off my times.Are those original plug wires? BTW I sent you an email on a cost saving tip.
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Old Jun 24, 2010 | 09:56 AM
  #26  
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Originally Posted by rogerdoger1993
My set up came to the following grand total.

Headers $360
Gaskets $22
EGR/AIR delete plates $15
Exhaust parts and labor $275

Grand total $672

The real question is. Was it worth it? And the answer is maybe. That is because I felt hardly any SOTP difference. This is mainly because I didn't tune for the lack of air/egr plumbing. However, the throaty rumble when you open it up makes it all worth while.
Can I has $360 TPIS long tubes?
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Old Jun 24, 2010 | 11:55 AM
  #27  
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Roger from your pix you have the 6spd so that means your gears are the 3.45, from what I hear that's a pretty good all around combo. I don't see any o2 sensors, where are they mounted? How did you get along with out the AIR and EGR? Any codes thrown now? If I were you and wanted more hp I would do the cam, hot cam or even better one from Elliot Port Works. Mike Weaver in the post above went with one of his cams, stock heads, roller rockers and ended up with 340 rwhp and a 1/4mile time of 12.5 really good times for stock heads.
Also removing the cats changes the demand for fuel in the computer so a tune would help you too.
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Old Jun 25, 2010 | 10:04 AM
  #28  
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Originally Posted by tombrammer
Roger from your pix you have the 6spd so that means your gears are the 3.45, from what I hear that's a pretty good all around combo. I don't see any o2 sensors, where are they mounted? How did you get along with out the AIR and EGR? Any codes thrown now? If I were you and wanted more hp I would do the cam, hot cam or even better one from Elliot Port Works. Mike Weaver in the post above went with one of his cams, stock heads, roller rockers and ended up with 340 rwhp and a 1/4mile time of 12.5 really good times for stock heads.
Also removing the cats changes the demand for fuel in the computer so a tune would help you too.
I 100% agree the 3.45 rear end being a good all around set up. As for the o2 sensors they are still attached. However, you really cant make them out because they are mounted to the top sides of the collectors. As for the air/egr. So far I have not recieved any codes.

The verdict is in guys. I am going the cam route.
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Old Jun 26, 2010 | 12:18 PM
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The difference between 4.09 gears and the 3.45 gears is hardly noticeable on the freeway. And you'll probably get better mileage because you'll be able to pull it into 6th at 55 MPH.

2200 RPM's is about what you'll see at 70 MPH with the 4.09's.

However, my vote is for nitrous. Nothing comes close for SOTP per dollar. You could do heads, cam, gear, tune, and several other bolt on's and still make less power than a stocker with a bottle.
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Old Jun 26, 2010 | 01:10 PM
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I think if you drove a car with 4.10's you'd change your mine. With 4.10's my car is turning ~1800 rpms at 70 mph.
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Old Jun 26, 2010 | 07:03 PM
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Yea the consensus is in for me. I am going with an LT4 hotcam. This cam will make more power, better sound and maintain good drivability.
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