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

want high 11's!!

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Old Sep 22, 2006 | 01:53 PM
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Default want high 11's!!

my car is an '87 coupe - z52 auto

right now all it has is flowmasters, and a cut lid with k&n, and has a best run of 13.87@98.

im wanting to run atleast an 11.99 pass, will afr 195 heads, super ram, longtubes, and lp219 cam get me there? if not whats needed

ive been trying to get the mustang to run the number but im growing exhausted dumping money in to the car and it breaks everytime i go to the track

Last edited by CRV3TT3; Sep 22, 2006 at 02:25 PM.
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Old Sep 22, 2006 | 01:55 PM
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If you are running 350 cubes, you are not going to run 11's with heads and a cam. Spray it, and you will.
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Old Sep 22, 2006 | 02:00 PM
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the mustang is running spray and im not really a fan

when i tear the motor down i can have the machine shop bore the block and stroke it but will the 2 bolt mains hold up to the power?
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Old Sep 22, 2006 | 02:18 PM
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I have run in the 10's with spray on a 2 bolt main with arp studs. Be sure to align hone after studs are installed.
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Old Sep 22, 2006 | 02:25 PM
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Originally Posted by Pete K
I have run in the 10's with spray on a 2 bolt main with arp studs. Be sure to align hone after studs are installed.

impressive!!

where do you think what i listed will get me?
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Old Sep 22, 2006 | 02:30 PM
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Most 383's with bolt ons run between 12.50 and 11.50, depending. Some run very quick. 85vet is knocking on the 10's with no spray. My own 383 has run 12.02 @112 (old motor)
New motor ran 12.17 @ 116.50 first time out on a slippery track. I have since had a custom prom burnt by ski_dwn_it and bought a new set of drag radials. I hope to tune it to run solidly in the 11's. But I am done spending money. It is, what it is.
Long story short, a good, well tuned 383 should give you your goal. Run a search. Many guys here have done it.
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Old Sep 22, 2006 | 02:33 PM
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I agree.

A 125 shot, tires, maybe a converter, and a bit of luck will get you there.

I've ran more than 100 bottles through my L98 with no side effects. SkateParkDave has had a 125 shot on his car for about 2 years with no problems as well.
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Old Sep 22, 2006 | 02:39 PM
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See signature for 350 results. That was basically with what you described above AFR 190s, super ram, 219 cam plus all the little things. Car would run 11.8s-9s in the summer heat up to about 3000 feet.
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Old Sep 22, 2006 | 02:52 PM
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Hey CRV3TT3 just curious what gears you have in your 87?
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Old Sep 22, 2006 | 03:47 PM
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There was a local guy here who was running 12.1 w/ a similar setup. I think he's still on the forum his screen name was AS84 i think.
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Old Sep 22, 2006 | 04:44 PM
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Thanks for all the replies guys!!!

the cra will b going down this winter for rebuild, then either haul it or limp down to CAM to be dyno tuned...and hopefully be all done for the hooters show in march

Originally Posted by corvette87
Hey CRV3TT3 just curious what gears you have in your 87?
im assuming stock 2.59's..the diff looks original and un tampered with
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Old Sep 22, 2006 | 05:38 PM
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what are your opinions on this 383/405 long block!?

http://www.golenengineservice.com/ht..._injected.html
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Old Sep 22, 2006 | 06:13 PM
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Originally Posted by CRV3TT3
what are your opinions on this 383/405 long block!?

http://www.golenengineservice.com/ht..._injected.html

That place just isn't right. I am always on the look out for a good deal but it seems these crate motors are a dime a dozen. These guys in particular make me a little . Now granted they may have goofed up dyno graphs but compare the 450 horse 383 with the 500 horse 383.

Both engines are identical, except for the cam specs. No way am I paying $1000 for a cam. If you look closer, you'll notice the cam for the 500 HP version has less lift and duration than the 450 HP version .

Granted these are carb'ed engines... http://www.golenengineservice.com/ht...carbureted.htm

The 405 HP @ 5000 RPM on a 383ci based TPI also makes me a little . Not saying it can't be done, but I have yet to see a 400+ HP NA TPI anything. If anything the effective RPM of a TPI will go down with larger cubes. They didn't say it was the stock TPI, but they also didn't mention it was aftermarket or ported either.

Caveat Empor my friend. If you have that much loot to put into an engine, and the know how, build it yourself for a similar, or more likely, even less cost.

My .02

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Old Sep 22, 2006 | 06:25 PM
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Just a fyi, I am interested in that same motor. I talked with Golen and they stated that with a TPIS big mouth and LT runners it would make advertised power. I like it....

Last edited by corvette87; Sep 22, 2006 at 06:31 PM.
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Old Sep 22, 2006 | 06:53 PM
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Originally Posted by CRV3TT3
my car is an '87 coupe - z52 auto

right now all it has is flowmasters, and a cut lid with k&n, and has a best run of 13.87@98.

im wanting to run atleast an 11.99 pass, will afr 195 heads, super ram, longtubes, and lp219 cam get me there? if not whats needed

ive been trying to get the mustang to run the number but im growing exhausted dumping money in to the car and it breaks everytime i go to the track
My 1986 vette with a 355, superram, 219 cam, longtubes, 10.5 to 1 compression, and 195 trickflow heads, and 3000 stall, ran 11.81 at 114 MPH. You can run 11's with the combination you mentioned if you have the combination worked out well.
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Old Sep 22, 2006 | 08:33 PM
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Originally Posted by bjankuski
My 1986 vette with a 355, superram, 219 cam, longtubes, 10.5 to 1 compression, and 195 trickflow heads, and 3000 stall, ran 11.81 at 114 MPH. You can run 11's with the combination you mentioned if you have the combination worked out well.

that put a smile on my face!!! lol
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Old Sep 22, 2006 | 09:35 PM
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If you stroke it, AFR race ported 195's, headers, Ported matched SR intake and plenum, at least 3.07 gears and be careful how the 219 is installed you should be in high 11's.
The 219 may or may not have 4degrees advanced cut into the cam. If it does you have to install the cam at -4 instead of straight up. I found this out when I installed the 219 straight up and could not run better than 12.40 at E-town and some people thought I was sandbaggin. The cam I had, had 4 degreas cut into it.
Curious though, if you have the Dana 36 rear - do not expect it to last long with a torque monster 383.
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Old Sep 22, 2006 | 09:43 PM
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Originally Posted by Upstate
That place just isn't right. I am always on the look out for a good deal but it seems these crate motors are a dime a dozen. These guys in particular make me a little . Now granted they may have goofed up dyno graphs but compare the 450 horse 383 with the 500 horse 383.

Both engines are identical, except for the cam specs. No way am I paying $1000 for a cam. If you look closer, you'll notice the cam for the 500 HP version has less lift and duration than the 450 HP version .

Granted these are carb'ed engines... http://www.golenengineservice.com/ht...carbureted.htm

You do realize that the pistons are forged in the 500 horse model right?
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Old Sep 23, 2006 | 12:47 AM
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Has anyone ever ordered from these guys? (golen engines) These seem like really good numbers and prices are decent.

That would be hard to believe that those engines could put those exact numbers down on a ported tpi. I did talk to some guy at the track that had a 90 tpi vette and he said with all his stuff done it kept up with his z06 which was there also (until the higher rpms). He said all his stuff came from tpis. He claimed to be making about 400hp with ported runners. That was just his word though. I would take his word for it, i mean damn he had two really nice vettes right there.
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Old Sep 23, 2006 | 01:34 AM
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Originally Posted by bjankuski
My 1986 vette with a 355, superram, 219 cam, longtubes, 10.5 to 1 compression, and 195 trickflow heads, and 3000 stall, ran 11.81 at 114 MPH. You can run 11's with the combination you mentioned if you have the combination worked out well.


So against what everyone says are you saying that a puny little 355 can run 11.99 or better.
A lot of people here say a tiny 350 motor can't do that based on personal experience. Right?
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