when i installed the radix, i didnt change the plugs back to stock/or better. when i ran my nitrous, i had some basic delcos that were 2 cores cooler. would this be the reason why the truck wont turn right over? if so, which NGK....tr5 or tr6. on tybrne's site, it recommends the tr6 pregapped at like .035. this what the Radix needs?

 

Radix will run with stock plugs. TR6 is recommended, or a similar plug in similar heat range. Plugs may not be your problem, don't know that TR5s would cause it not to turn over. Are you sure you got all your injectors hooked up right?

 

it tr6 it is. i can double check the injectors. maybe one of them didnt snap in all the way or something?

 

What's the problem ... ? Is the motor turning over at all? If not, then I think you might have something a little more severe than spark plugs wrong.

 

Who makes that recommendation - Magnuson?

 

the motor turns over fine. example....
i woke up this morn around 7 am...went outside to crank the truck and pull it in the garage...took like 4 secs to turn over. (cold start) turned it off in the garage....5 mins later..cranked it again....no problem at all

 

No, I don't think they do. It will run on stock plugs, as I said. Much info on the internet and heat range of plugs under blown situations. Do the research and use your best judgement.

 

That sounds like it could be a tuning issue. I would change the plugs and wires before I dug much deeper into it though.

You have a fuel pressure gauge hooked up to it? It might be bleeding off fuel pressure too.

 

You said "TR6 is recommended" and all I asked you was for your source of recommendation. Can you share it with us, or is it a secret?

 

I think what he meant is most people on the forums and most people in the know would recommend going 2 steps cooler than stock with a blown motor. I don't think he meant it was enscribed in a stone wall somewhere that John Doe recommended it.

Just a thought ...