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Old 06-01-2018, 11:07 PM   #126
fredscarryall
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Re: Fastfreddys 454ss

Got my tbi back from tbiparts/spr performance. Looks really nice. He even went the extra step and painted the tbi pod and linkage black.Since I went to 54mm on the throttle blade bores I had to buy a throttle body adapter from tbi parts because my bore on my intake manifold it 50mm. Then when I rebuild the top end with performance parts. I will take the manifold in and get it machined to 54mm and get rid of the 1/4 spacer. Going to install the tbi Monday.
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Old 06-02-2018, 12:33 AM   #127
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Re: Fastfreddys 454ss

Got a set off 396 heads,(my thought there is to boost the compression with 98 cc heads to take my compression from 7.85:1 to about 9:1,some say vortec heads flow better but I couldnít pass up the deal), a used set Harland sharp roller rockers,a lunati Voodoo roller cam (20110710), Then I bought a set of maxspeedingrods roller rocker from amazon for $135. They have really good review so I will give them a try. I also got a set of 141-141 proform valve covers to finish it off. The only thing left is to order a chip and shorter push rods.The biggest thing is when tbichip programs it. He said the chip will need a lot of data logging. Because no one is really running that hot of a cam in a OBD1 style computer controlled ecm. I also have to decide if I want to pull the engine or leave the engine in and just do the top end. When I do the upgrade. Plan on doing this after itís first car show on June 6th
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Old 06-16-2018, 12:36 AM   #128
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Re: Fastfreddys 454ss

When I ran the line for the fuel regulator. I noticed my diagram I drew up in an earlier post was wrong. I had to swap the lines on the fuel regulator. Here the right diagram.I installed the amazon Chinese fuel pump regulator,it wouldnít adjust and the liquid filled gauge started to leak. So I decided to go with the aeromotive 13301 bypass regulator and I had to by a earl fitting coming out of the return from the tbi. Then I bought a manual fuel pump gauge because if I would have bought a liquid filled as soon as the engine got warm the reading on the gauge would fluctuate 10 lbs. I set the regulator to 16 lbs had to move a vacuum line and the rebuilt tbi fired right up. The fittings on the aeromotive regulator leaked, so I had to use liquid Teflon on the threads (donít use Teflon tape), let them dry 24 hours and now it runs awesome. I also had to buy a 6 an to 5/16 tube to adapt to my solid return line back to the tank
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Old 06-16-2018, 12:39 AM   #129
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Re: Fastfreddys 454ss

Since I didn’t have any luck with the Chinese fuel pump regulator. I didn’t want to press my luck with the roller lifters. So I returned those back to amazon. I was dreading measuring for the pushrod length ( because I have messed that up to many times) and I didn’t want to pull my motor and take it to a machine shop to measure for pushrods. I gave Lanati cams a call. They told me if I used stock decked heads, the cam I picked,lanati retro fit roller lifters and lanati roller 1.7 rockers. I could use lanati 6502-16 pushrods. But I would also have to buy a cam button and a lock plate with no shims because I was going roller. I also had to get a reverse rotation water pump because I am using the stock serpentine belt system. About mid July after a car show, I have a month till the next show to install these performance upgrades.
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Old 06-17-2018, 12:24 AM   #130
Terrick down Under
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Re: Fastfreddys 454ss

Have you tried the TBI yet? eager to see how it goes......Planning on doing the same thing and punching my 454 to 496.
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Old 06-17-2018, 01:14 AM   #131
fredscarryall
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Re: Fastfreddys 454ss

The rebuilt tbi runs a lot better now. I think my bushings on the throttle shaft were a little worn out even with my low miles.The tbi was prone to this when I worked at a chevy dealership in the early 90s. It has Better throttle response, starts up a lot faster and idles smoother. With the 3 lbs of fuel pressure increase I notice a slight power increase. I would recommend removing the tbi internal fuel regulator and putting in an external one with a Manuel gauge just because itís a lot easier and quicker to adjust. Whenever I rebuild my bottom end I want to do a 496 also. Are you planning on Boring out your tbi to 54 mm and having tbiparts rebuild it.
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Old 06-17-2018, 04:09 AM   #132
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Re: Fastfreddys 454ss

Yes, i am looking for a used TBI & computer in the US, have it rebuilt and machined, upgrade program and then send them down here. Am trying to get it done by Xmas time, with a bit of luck.
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