LT1-LT4 Modifications 1993-97 Gen II Small Block V8

1st time out with my 24x 355 LT1

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Old 02-18-2014, 09:38 AM
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Default 1st time out with my 24x 355 LT1

Made a few passes with my car Sunday. What a joke on street tires. I knew it would be but i had to go have some fun. My best pass i managed to sneak out with a 1.81 60 ft with a 7.90 @ 90 mph and 12.23 @ 116. Car was hazing the tires way down the track. My 1-2 and 2-3 shifts would lay on the rev limiter about 6 or 8 times then shift which it always does with no traction. Shifts perfect otherwise. With 4.10 gears I was crossing the stripe at 6800 in third gear. When it would shift to 3rd it would get busy pulling like raped ape. I was figuring low 12s spinning so maybe I can find the better part of a second with drag radials. Still got to get the tune dialed in to. Its close at wot but probably still some on the table.
Old 02-18-2014, 11:20 AM
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Nice work. I'm in the process of building a 24x 355 as well. Could you please share some details on your set-up? IE: Cam, heads, exhaust, misc weight reduction etc. I'm trying to get a feel for what my car might be capable of. Thanks.
Old 02-18-2014, 11:46 AM
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Why not go with megasquirt? Cheaper and tunes on the fly. I was gonna do the 24x but the more I read on ms3 the more I liked it over the 24x.
Old 02-18-2014, 11:56 AM
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Originally Posted by whytryz28
Why not go with megasquirt? Cheaper and tunes on the fly. I was gonna do the 24x but the more I read on ms3 the more I liked it over the 24x.
Some people like having gauges and what not. Ya know, street car stuff.
Old 02-18-2014, 02:54 PM
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Originally Posted by oldschool
Nice work. I'm in the process of building a 24x 355 as well. Could you please share some details on your set-up? IE: Cam, heads, exhaust, misc weight reduction etc. I'm trying to get a feel for what my car might be capable of. Thanks.
Its just an all forged 355. Eagle crank H beam rods and SRP Pro series flat top pistons. 11.3:1 compression. Heads are stock castings that I ported 182cc is what they measured. The valve train is from a set of competition afr heads 8mm stemed 2.02/1.6 valves. Pac springs off the afr heads and LS7 lifters. Had advanced inductions do the cam 228/235 on 108 lsa. Stock ported intake. That's about it.
Old 02-18-2014, 08:36 PM
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Wheres the video?
Old 02-18-2014, 09:08 PM
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Not a bad starting point, some good drag radials will help a ton, I am sure the car will also get a lot quicker with more seat time and tuning.
Old 02-18-2014, 09:52 PM
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Originally Posted by Shownomercy
Some people like having gauges and what not. Ya know, street car stuff.
What gauges would be missing?
Old 02-18-2014, 09:52 PM
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Originally Posted by 95mysticta
Wheres the video?
Ya know the thought of passing my phone to my friend to record a pass never crossed my mind until I was on the way home. Go figure.
Old 02-18-2014, 10:06 PM
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Originally Posted by BizZzatch350
Not a bad starting point, some good drag radials will help a ton, I am sure the car will also get a lot quicker with more seat time and tuning.
Yea there's a lot of et left in being able to aim for the radiator with my right foot on the departure rather than thinking easy does it easy does it just don't floor it let it idle for 100 feet then gently press the go pedal until tires squeal... back off repeat 3 times until you get into 2nd gear then get impatient and let em burn until 3rd.
Old 02-19-2014, 08:38 PM
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Originally Posted by wht97ws6ta
Its just an all forged 355. Eagle crank H beam rods and SRP Pro series flat top pistons. 11.3:1 compression. Heads are stock castings that I ported 182cc is what they measured. The valve train is from a set of competition afr heads 8mm stemed 2.02/1.6 valves. Pac springs off the afr heads and LS7 lifters. Had advanced inductions do the cam 228/235 on 108 lsa. Stock ported intake. That's about it.
Oh forgot to mention the exhaust. Pacesetter long tubes ory with a borla catback. Also I pulled the throttle body off and made my throttle plates and bored it to 52mm today. Going to thin the throttle shaft tomorrow and tack it back together. I believe that should make a nice difference. The stock tb bored and fixed right just looks like a better piece to me than the aftermarkets unless it needs a 58mm.
Old 02-19-2014, 08:54 PM
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Originally Posted by ChevyOwner
What gauges would be missing?
Pretty sure the MS can't run any of the stock gauges... ?
Old 02-19-2014, 09:09 PM
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Originally Posted by Shownomercy
Pretty sure the MS can't run any of the stock gauges... ?
You can easily run the stock gauges with the stock PCM. Power, ground, tach signal, VSS signal. Oil PSI, volts, fuel level, and coolant temp are mechanical gauges.. atleast on a 94.
Old 02-19-2014, 10:21 PM
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Originally Posted by Shownomercy
Pretty sure the MS can't run any of the stock gauges... ?
As far as I know all of the gauges are mechincal.
The MS3 can handle speedometer corrections and tach output.
The rest of the gauges get the information directly from the sensor.



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