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

Does anyone run this setup

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Old Jan 14, 2011 | 08:15 PM
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Default Does anyone run this setup

87 Corvette
383 Eagle Stroker kit
Stock Not Ported heads
Stock Rear end
BBK Power Plus Throttle Body
700r4 TransGo shift kit
2500 stall converter
30 lbs bosch Injectors
1.6 GM Roller Rockers
LT4 Hot Cam
Accel Super Ram Runners and Plenum
TPIS Big Mouth Intake Manifold
Headman Longtube headers
Borla exhaust
Edlebrock roller Lifters

What kind of specs do you think I'll Run and produce.Just Know what you Think. Thanks
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Old Jan 14, 2011 | 08:29 PM
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You will need a custom chip or retune the ECM to use 30 lb. injectors. Also get a set of LT4 springs, the stock ones can't take that much lift. Your stock gears are high, 2.59s?, but if you can hook it up you should run 12s.
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Old Jan 14, 2011 | 08:45 PM
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Yep, somewhere in the 12's. I'm pretty sure someone is running near this setup...with 383 in his userID. Can't remember.

Unless the heads have already been reworked, I'd consider at least mild/moderate porting to complete the setup.
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Old Jan 14, 2011 | 09:40 PM
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The RR and LT4 came as a kit from summit with LT4 springs. The super ram is not in stalled yet I have 24lbs in the car now and 26 that came with the SR and 24 I had Jon rebuild to 30lbs.

How much Horse Power and Torque do you think Ill make to the crank?
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Old Jan 14, 2011 | 10:08 PM
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My guess: 300-330rwhp, 400rwtq
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Old Jan 14, 2011 | 10:32 PM
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Really need to upgrade the heads they are choking that poor motor.
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Old Jan 14, 2011 | 11:43 PM
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Originally Posted by cuisinartvette
Really need to upgrade the heads they are choking that poor motor.
We started this debate last May. I like to think "choking" is a bit too overstated IMO.
http://forums.corvetteforum.com/c4-t...st-tpi-10.html

I think Stevie was running stock heads, but I may be wrong. The Accel intake won't be quite as good, but it gives the OP an idea about the combo's potential.

Also note the size of Stevie's cam. (BIG for a long-runner setup)
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Old Jan 15, 2011 | 01:20 AM
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Originally Posted by GREGGPENN
We started this debate last May. I like to think "choking" is a bit too overstated IMO.
http://forums.corvetteforum.com/c4-t...st-tpi-10.html

I think Stevie was running stock heads, but I may be wrong. The Accel intake won't be quite as good, but it gives the OP an idea about the combo's potential.

Also note the size of Stevie's cam. (BIG for a long-runner setup)
Here's a picture of the completed First Injection system on my 89 Vette.


Performance is (was) excellent even though the cam was quite lopey and had considerable overlap. I ran it many times in the 1/8th mile and against other vette's. I was running the First system on a 383 stroker with stock heads (just slightly shaved to true up in the re-build) a 2500 stall converter, 3.75 Richmond rear gears, Hedman long tube headers, and a well beefed up 700R-4 auto trans.

In actual racing conditions with the above set up I would usually spank stock vette's up to the C-5's and even the C-6 400 hp stock cars by a least a car length. I ran a few ZO-6's as well, and would usually get the jump from the hole, especially on the stick versions, but would find them pulling away at the last 50 ft or so at the long end. I would embarrass most 5.0 Mustangs.
One of the other modification made that helped the performance was switching over to a MAP sensor system and getting rid of the MAF sensor system. (see picture) I used a set up from Dynamic EFI and had to change out the ECM when I went with the MAP sensor. They did the electronic set up to the ECM and after a few pin changes in the wiring harness and a good tune, it ran beautifully.

Now, I have gone up a notch and am in the process of installing a Super Ram, along with a new set of AFR 195 heads and a Comp's Cam #276HR14 which will give me a base of 1800 to 5800 rpm's with spec's @ 220/230 - .510/.510 with LSA of 114. I should see just a bit more since I will be running with 1.6.1 Crane roller rockers. Jim Barth (of this forum) was very helpful in the selection of the heads and cam, and was a wealth of knowledge about this type of set-up.



I hope to have this all together and running this weekend, although I will say that with the minimal info available on the installation process for the Super Ram, it would be an understatement to say that my mechanic and tuner considered it to be a real PITA!
He called it a frustrating, knuckle busting, tempermentaL SOB install that provoked him into swearing in at least 4 languages, but I am sure it will be worth all the effort.
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Old Jan 15, 2011 | 12:34 PM
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That superram will run real well with that cam
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Old Jan 15, 2011 | 01:58 PM
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Originally Posted by stevie1dr
Here's a picture of the completed First Injection system on my 89 Vette.


Performance is (was) excellent even though the cam was quite lopey and had considerable overlap. I ran it many times in the 1/8th mile and against other vette's. I was running the First system on a 383 stroker with stock heads (just slightly shaved to true up in the re-build) a 2500 stall converter, 3.75 Richmond rear gears, Hedman long tube headers, and a well beefed up 700R-4 auto trans.

In actual racing conditions with the above set up I would usually spank stock vette's up to the C-5's and even the C-6 400 hp stock cars by a least a car length. I ran a few ZO-6's as well, and would usually get the jump from the hole, especially on the stick versions, but would find them pulling away at the last 50 ft or so at the long end. I would embarrass most 5.0 Mustangs.
One of the other modification made that helped the performance was switching over to a MAP sensor system and getting rid of the MAF sensor system. (see picture) I used a set up from Dynamic EFI and had to change out the ECM when I went with the MAP sensor. They did the electronic set up to the ECM and after a few pin changes in the wiring harness and a good tune, it ran beautifully.

Now, I have gone up a notch and am in the process of installing a Super Ram, along with a new set of AFR 195 heads and a Comp's Cam #276HR14 which will give me a base of 1800 to 5800 rpm's with spec's @ 220/230 - .510/.510 with LSA of 114. I should see just a bit more since I will be running with 1.6.1 Crane roller rockers. Jim Barth (of this forum) was very helpful in the selection of the heads and cam, and was a wealth of knowledge about this type of set-up.



I hope to have this all together and running this weekend, although I will say that with the minimal info available on the installation process for the Super Ram, it would be an understatement to say that my mechanic and tuner considered it to be a real PITA!
He called it a frustrating, knuckle busting, tempermentaL SOB install that provoked him into swearing in at least 4 languages, but I am sure it will be worth all the effort.
Looks similar to the setup I used to run when I had a 383. One note, when it comes to modding and hotrodding, you will do yourself a big favor in the long run if you buy a set of Craftsman tools and learn to do this stuff yourself. You are paying big $$$ to have someone do this for you, and it really isn't that hard. A set of tools, some common sense, a FSM and help from your forum buddies will get you far. That leaves more money for more parts and zero labor. If, for instance, you decide to change injectors, you'll have to pay hundreds to have the plenum removed and reinstalled where if you do it yourself, it'll cost you an afternoon and essentially, you'll have free injectors. Also, no one will take care of your car and work as carefully and diligently as you will with your car. My .02. Willie
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Old Jan 15, 2011 | 02:57 PM
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I agree 100% about doing your own work if possible. In my younger years I used to, but I have a seriously messed up back and although I know how to do the job myself, my back won't let me bend over the fender of a car anymore, so I have to have someone do it for me. Getting old isn't for the feint of heart, and as the old saying goes, "If I knew I was gonna live this long, I'd have taken better care of myself!" :0)

Steve
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Old Jan 15, 2011 | 04:13 PM
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I do most of the work myself it would be to expensive If I didnt.
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Old Jan 15, 2011 | 11:15 PM
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how about a higher stall TC ?
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Old Jan 15, 2011 | 11:30 PM
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Originally Posted by stevie1dr
I agree 100% about doing your own work if possible. In my younger years I used to, but I have a seriously messed up back and although I know how to do the job myself, my back won't let me bend over the fender of a car anymore, so I have to have someone do it for me. Getting old isn't for the feint of heart, and as the old saying goes, "If I knew I was gonna live this long, I'd have taken better care of myself!" :0)

Steve
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Old Jan 16, 2011 | 03:45 PM
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Originally Posted by Calderone
how about a higher stall TC ?
I dunno quite yet. As soon as I get it running and tuned I will take it to the strip and check out how it performs. If it needs a higher stall I will make the change.

Right now, everything is just about complete. We will do the fluids and belts Monday and get it started. Then Cal, my builder and tuner will put it on the computer and get the diagnostics, set the fuel/air, timing, etc, and then we will take it to a local area where we can actually run it WOT and see how it performs under real conditions to make the necessary tweaks for best performance. With any luck I will be at the strip Friday night!!!! OoRah!
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Old Jan 18, 2011 | 11:59 PM
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How does the cold start work on the super ram ?
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Old Jan 19, 2011 | 11:05 AM
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Originally Posted by BAMNCO
How does the cold start work on the super ram ?
It just has to crank a little longer before it starts.
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Old Jan 19, 2011 | 01:11 PM
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Originally Posted by BAMNCO
How does the cold start work on the super ram ?
If the SR runners don't have a port for the CSI, or if you don't want to run it anymore, simply flash an 89 BIN onto the Moates chip for your ECM. It'll work as good as factory. If they do have a port, no problem either.
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