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Test ran the new Raylar goodies

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Old 08-01-2019, 11:26 PM
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Nice have a few questions - easily see the reflash of the pcm 555. And it looks in the pics you still have the stock merc 496 throttle body ? Correct ? The IAC hose fitting is plugged off so you do not have the stock set up for that end. Did you delete the IAC completely and just set up the idle control by opening up the throttle plate a bit / tad more and or enlarged the hole in the throttle plate ? Have you scanned the engine to see what the TPS and if anything for the IAC shows at all ? And how steady are your idle rpms ? Just asking to hear the feedback.

You got rid of the remote oil filter mount - was that to remove the lines and tidy up all that for a cleaner look ?

the blue silicone 4 inch ID used for your exhaust riser hose joint - who's is that - is that from the auto turbo end as per what the use ? This company ? https://www.samcosport.com/manufacturer/couplings/

Last edited by BUP; 08-01-2019 at 11:29 PM.
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Old 08-01-2019, 11:34 PM
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If in fact your throttle body is stock as it looks in the pics ( the blue is throwing me off a bit thou ) do you have the stock flame arrestor ? I would like to see if anything changes using the stock flame arrestor - anything AT ALL -- including AFR s --- same day testing swap out just to see .

also have you tried the NGK plugs -- which exact AC delco spark plugs are you using ? any change there from the OEM recommended stock app spark plugs

Last edited by BUP; 08-01-2019 at 11:51 PM.
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Old 08-01-2019, 11:49 PM
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something flying around
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Old 08-02-2019, 08:47 AM
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Originally Posted by BUP
Nice have a few questions - easily see the reflash of the pcm 555. And it looks in the pics you still have the stock merc 496 throttle body ? Correct ? The IAC hose fitting is plugged off so you do not have the stock set up for that end. Did you delete the IAC completely and just set up the idle control by opening up the throttle plate a bit / tad more and or enlarged the hole in the throttle plate ? Have you scanned the engine to see what the TPS and if anything for the IAC shows at all ? And how steady are your idle rpms ? Just asking to hear the feedback.

You got rid of the remote oil filter mount - was that to remove the lines and tidy up all that for a cleaner look ?

the blue silicone 4 inch ID used for your exhaust riser hose joint - who's is that - is that from the auto turbo end as per what the use ? This company ? https://www.samcosport.com/manufacturer/couplings/
Hi John, yep, Whipple Stage 2 tune on 555pcm. Stock 496HO TB. Stock Merc IAC with cutdown hose and k@n filter. With the 203 cam a 5/16 hole is drilled in TB plate. Idles just like a stock HO with a tad more lope. I removed the merc oil setup to add a thermostat adapter to block. Tstat is closed until it starts to open at 160* directing oil to oil cooler. Fully open at 180*. -10 hoses. Also removed 11lb bypass valves in block. Added 30lb valve.

Couplers are from HPS.
http://www.hps-siliconehoses.com/cat...gory/view/id/8



Last edited by Ryan00TJ; 08-03-2019 at 01:26 PM.
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Old 08-02-2019, 09:10 AM
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Originally Posted by BUP
If in fact your throttle body is stock as it looks in the pics ( the blue is throwing me off a bit thou ) do you have the stock flame arrestor ? I would like to see if anything changes using the stock flame arrestor - anything AT ALL -- including AFR s --- same day testing swap out just to see .

also have you tried the NGK plugs -- which exact AC delco spark plugs are you using ? any change there from the OEM recommended stock app spark plugs
I went with the K@N air filter after seeing the amount of belt dust in the intake plenum of the Raylar intake. You could not see it with the stock intake as the plenum nosedived after the TB. Cleaned out all debris and installed the K@N. Nothing getting past into the intake now. I have heard the K@N is a tad restrictive on this app vs stock FA. I'll do a couple back to back runs and report. AC 41-983 plugs. Runs great with these.


Another cool note... With the symmetrical intake and cylinder head ports, EFI, the air-fuel ratio from one engine bank to other is very similar. Within a couple tenths across rpm range.

Last edited by Ryan00TJ; 08-02-2019 at 09:16 AM.
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Old 08-02-2019, 05:41 PM
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Hey Ryan,
what oil thermostat and adapter did you use
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Old 08-02-2019, 06:02 PM
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Originally Posted by AusScarab29
Hey Ryan,
what oil thermostat and adapter did you use
Earl's 504. https://www.holley.com/products/plum...t/parts/504ERL



Last edited by Ryan00TJ; 08-02-2019 at 06:05 PM.
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Old 08-02-2019, 07:40 PM
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[QUOTE=Ryan00TJ;4700046]Earl's 504. https://www.holley.com/products/plum...t/parts/504ERL


The standard 496 oil filter adapter ( the part that bolts on the block) blocks of the center hole where the filter would usualy spin onto ,the oil is sent to the remote filter using the outer holes then goes through the filter and returns back to the block using a seperate fitting.The adapter you are using is like the traditional way all other bbk flow oil.Does the adapter you are using work fine on the 496,does the center hole flow oil correctly


Last edited by AusScarab29; 08-02-2019 at 08:21 PM.
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Old 08-03-2019, 08:22 AM
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[QUOTE=AusScarab29;4700063]
Originally Posted by Ryan00TJ
Earl's 504. https://www.holley.com/products/plum...t/parts/504ERL


The standard 496 oil filter adapter ( the part that bolts on the block) blocks of the center hole where the filter would usualy spin onto ,the oil is sent to the remote filter using the outer holes then goes through the filter and returns back to the block using a seperate fitting.The adapter you are using is like the traditional way all other bbk flow oil.Does the adapter you are using work fine on the 496,does the center hole flow oil correctly
Works fine. The 8.1 has the same priority main oiling system as the earlier gen 5/6 bbc blocks.
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Old 08-03-2019, 03:50 PM
  #110  
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glad all is well and yes the stock flame arrestors offers almost zero filtration . That can be bad for the rings and the cyc walls and so on.

Never heard of an engine making gobs more HP when it can NOT filter crap out from entering internally of the throtlle body and engine.
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