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

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Old 10-18-2014, 12:09 PM
  #41  
MavsAK
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Originally Posted by JackDidley
I hope you find that few tenths that you are looking for. It seems that there is a point when the tenths get harder to find and more expensive. I reached a goal of 12.80 and sort of gave up. That is, stopped spending $$$. Still tried tweaking and tuning but 12.80 is all this motor has in it. To go quicker its going to take a converter and or gears. I used to drive this car 15 to 20k miles per year and was not willing to do that. Now I dont drive much . If I keep it it will likely get those things. Thats if I have a track to race at. Not looking good for the local track.
the 400 if nothing else should make mountain drive a hell of alot of fun. Takes me an hour and a half to make it to the nearest track that I know if (Charlotte). So I don't do track days often.
Old 10-20-2014, 02:45 PM
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sp361t
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yea, i think i am going to go ahead and move forward with a new engine. i have a 404 with forged crank, H rods, and forged pistons. i have a set of 215 Brodix spread port heads that will work nicely on the 404. i need to figure out a cam for it my goal would be somewhere north of 500 CHP. also plan to switch to E85 so i can run high compression.

Of corse i will be buying headers with this to.

Just need to sell the 383 that is in there now. if you know any one looking around the Indianapolis area i got a nice one.
Old 10-20-2014, 02:54 PM
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Vic'89
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Originally Posted by sp361t
update: converted to an LT1 intake and FINALLY got at 12 second pass :-)
ran a 12.79@111MPH on a nitto 555 street tire.
Should run better next time i found a blow RR shock so i installed a set of Bilstens i had in the shop.
In my opinion, you can go much faster still.

What's the 60 ' time ?

Vic
Old 10-20-2014, 03:46 PM
  #44  
sp361t
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agreed, there is still more in the car. i was only running a 1.92 short time. i had the Micky T's on it but when i launched it hard i got into some terrible tire shake, i believe it was due to the bad RR shock. i think the car, as it sits, has a 12.5 in it. It has the MPH just getting it off the line is the trick. Hell with headers it might run a high 11 on a perfect pass.
Old 10-20-2014, 04:13 PM
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Vic'89
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keep working on it, you will get there.

It took me a year to optimize my setup.

Vic
Old 10-21-2014, 10:03 AM
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Yes agreed, i am still working through everything. i would like to also start on the chassis. maybe changing out old bushings and going with solid or poly mounts. would like to get to coil overs but don't have the coin for Vans steels setup. probably figure out my own Coilover setup.
Old 10-22-2014, 12:04 PM
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Originally Posted by sp361t
update: converted to an LT1 intake and FINALLY got at 12 second pass :-)
ran a 12.79@111MPH on a nitto 555 street tire.
Should run better next time i found a blow RR shock so i installed a set of Bilstens i had in the shop.
Where did you find an LT1 intake with a distributor hole drilled?
Old 10-22-2014, 03:12 PM
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Im not sure what it is, its not a "stock LT1" i just call it that for reference. it has the distributor hole cast into it and it is taller than a standard LT1. but the general shape looks like LT1
I bought it at a swap meet and it seems to work really well so i might stick with it even with my 404.
Old 10-22-2014, 04:07 PM
  #49  
DanielRicany
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Originally Posted by sp361t
Im not sure what it is, its not a "stock LT1" i just call it that for reference. it has the distributor hole cast into it and it is taller than a standard LT1. but the general shape looks like LT1
I bought it at a swap meet and it seems to work really well so i might stick with it even with my 404.
It's probably a Miniram or Holley Stealth Ram.



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