Thunderbolt V with M3SC procharger (go easy on me lol)

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04-27-2021 | 07:51 PM

#11

Rookie

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From: Grand Rapids, MI

Are you going to dyno this engine? O2's in the exhaust to read AFR's to properly jet the carb?

04-27-2021 | 07:55 PM

#12

Ontariocheckmate

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From: Carleton Place Ontario Canada

Rookie, I wasn't planning on dynoing it, even though I know this would be most desirable especially to read the AFR's. I was going to do it by checking plugs (I know not nearly as accurate as a dyno with everything hooked up) The Carb is brand new from Nickerson and I have all the specs for it.

04-27-2021 | 07:58 PM

#13

GPM

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From: Pa

Maybe try something like this, Universal SafeGuard for Distributor Ignition (jandssafeguard.com)

04-28-2021 | 07:44 AM

#14

green lightning

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From: syracuse ny

Quote:

Originally Posted by Ontariocheckmate

Hey guys, wondering if someone has done as the title says? I have a 253 Checkmate Convincor with a 454 Mag motor in it. Motor was just done before I bought the boat, bored .030 over but other then that completely stock. I purchased a Procharger M3SC kit with the intercooler and plan on running around 5 PSI of boost (what procharger rep has told me anyways) Ive upgraded the fuel system with an Aeromotive A1000 pump and a Aeromotive boost referenced regulator, all fuel lines upsized as well and a return plumbed to the tank, Nickerson blow threw carb topping it off. I think Ive got the fuel system covered and dont have any questions there.

My question is regarding the timing and the Thunderbolt V system thats on my motor (yes Ive verified it is a TBV as it has the knock sensor and module) My eyes are burning from the amount of reading Ive been doing regarding timing and blowers/prochargers. Has anyone successfully used the TBV ignition system with a blower motor?? Im not looking at running anymore then 5 PSI of boost at this time but want something reliable. Nearly done installing all the other components and have not ran the motor at all yet, hence the reason for the question incase I need to order more parts. Ive done a search and there seems to be quite a bit of information regarding EFI with prochargers just not a pile with carbs? Ive heard that running the V6-14 module was the fix for the TBIV systems but that wont work with my system because of the changing timing curve correct?

Thanks for any help!

Mine does not have a knock sensor so I don't know about that . with mine all I did was set my base timing and check full advanced at 3000 rpm . I would be more worried about your carburetor most of the ones I have looked at were very rich .

04-28-2021 | 03:24 PM

#15

GPM

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From: Pa

Quote:

Originally Posted by Ontariocheckmate

It only takes a few seconds with a bad tune to take a piston out, best of luck to you.

04-28-2021 | 05:15 PM

#16

Trash

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Quote:

Originally Posted by Ontariocheckmate

Please tell me what a plug looks like that is running 12.5 AFR and one that is 13.9 AFR.

Please, for the love of God, install a wideband system, you will not regret it and will likely never pull a plug again to 'read it'. It is invaluable for tuning, and quite frankly full time monitoring.