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200 to a 250 shot...how much more drama?

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Old 08-26-2009, 09:47 AM
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Default 200 to a 250 shot...how much more drama?

the car has good internals, and a good set of rings. standalone fuel system. these pistons/ rings should have problem holding a 300 shot from what i was told by the builder. right now im using a 200 shot, but debating upping it to a 250. is there anything i need to be looking at that would be a short coming i wouldnt notice on a 200 shot? also its a nitrous daves plate not a direct port.
Old 08-26-2009, 10:09 AM
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When I went from a 200 to 250, the only thing that changed was that I broke the 12 bolt. I stepped the plugs down from a TR8 to a TR9 and pulled 2 more degrees of timing. You might want to reflow the stand alone to make sure you don't lose any fuel pressure on the 250 hit. I bet ATVracer and a few others have alot more insight on this than me.
Old 08-26-2009, 06:05 PM
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ya i have a gauge on the standalone. so far so good. im thinking with this size hit it might be better to do a 2 stage or progressive. in which case ill likely just leave it how it is. just kind of curious. i have all these pills and nothing to do with them!
Old 08-26-2009, 07:02 PM
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all i did was change my pills lol. i was running 1 step colder than the tr6's. just watch the limiter so you don't blow a tip and some ceramic like i did.
Old 08-26-2009, 07:03 PM
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If your tune up is good then like NXZ28 said pull 2* more out,1 step colder plug (depending on what your using) and double check the fuel pressure.... let it eat.
Old 08-26-2009, 07:06 PM
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i would have no problem with spraying 250 though a nitro dave plate. as others said, look at your tuneup and plugs. i know many local tuners love trying to get away with as much timing as they can on the dyno. as you know, the dyno means nothing. you will be spraying 300 soon lol.
Old 08-26-2009, 07:23 PM
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the only thing keeping me from going 300+ is the fact my stand alone isn't finished haha.
Old 08-26-2009, 07:55 PM
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i thought a 200 hit was alot damn 300. what is that on a 10 lb bottle like one hit?
Old 08-26-2009, 07:56 PM
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if anything my tune up is a bit on the rich side right now. of course that will change if i up the shot but i wanted a little room for colder weather. right now i run a tr8 plug but it was tuned with a tr7. i just put the 8's in last plug change and never retuned it. i will likely pull 2 more degrees out next time i tune it anyways but if i do this i will pull 4. it will only be for track usage though. im stepping down to a 3.73 from a 4.10 and not sure how much its going to hurt. i will likely make a seperate tune and do so with a 150 shot for normal usage.
Old 08-26-2009, 07:59 PM
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Sounds like your going to far the other way to me.
Old 08-26-2009, 08:43 PM
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Originally Posted by ATVracr
Sounds like your going to far the other way to me.
yes i am stepping down a bit. but its a street car. i drive it several times a week. i go to the track 3-4 times a yr maybe.
Old 08-26-2009, 09:46 PM
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often driven street car or race car. completely separate tune up IMO. how do the 8 plugs drive on the street? i have 7s and about to switch to 8s. my 7s drove perfect (no different than 6s).
Old 08-26-2009, 10:32 PM
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Originally Posted by ls2 bait
yes i am stepping down a bit. but its a street car. i drive it several times a week. i go to the track 3-4 times a yr maybe.
I was talking about the tune up.
Around 250 is where you have to be closer or you can hurt parts.
Rich with not enough timing isnt a safe tune up.

If your 200 shot tune was rich then pulling 4* instead of 2* and keeping the same jet spread and fuel pressure may not be "safe".

Lean it out and pull 4* or just pull 2*.

I'm no expert just my opinion.
Old 08-27-2009, 10:06 AM
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This post said a LOT^^^^
Old 08-27-2009, 10:28 AM
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Originally Posted by gator's 99TA
often driven street car or race car. completely separate tune up IMO. how do the 8 plugs drive on the street? i have 7s and about to switch to 8s. my 7s drove perfect (no different than 6s).
I tried 8s out on the street and they didn't last long. Just too cold of a plug. I think that if I would have had a separate nitrous and motor tune it would have been better. I was running it on just the nitrous tune with timing added back in with my Ramchargers timing tuner. This did not make up for the richened fuel tables though.
Old 08-27-2009, 10:58 AM
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Sounds like you are on track.
What type of power and compression is your motor N/A?
250 is a cake walk with our plate as long as the tune up is there.

AS you move up in these higher HP levels you need to be watching the plugs to find your hot cylinder.

Dave
Old 08-27-2009, 11:43 AM
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Personally i think you should do a direct port past a 200 shot, but that is me...
Like ATV stated above, you will now really have to watch your tune up...

good luck curious to see the results
Old 08-27-2009, 05:23 PM
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I just got the new GM High Tech and You ls2 bait have a nice car. I like your burnout. LOL
Old 08-27-2009, 08:15 PM
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Tommy- you said you have a lot of jets and I am in the need of some for a 125 or 150 if you have any laying around- I need fuel and N20. My old jets don't work in the new plate. If not no biggie

I still like the idea of a second stage, especially when pushing over 200. It is a lot less shock on the drivetrain/parts.
Old 08-28-2009, 08:50 PM
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Originally Posted by gator's 99TA
often driven street car or race car. completely separate tune up IMO. how do the 8 plugs drive on the street? i have 7s and about to switch to 8s. my 7s drove perfect (no different than 6s).
they have been fine thus far. which honestly suprised me as i tuned it on the 7's and never re did it. i put them in back in early february and ive put prob 4k miles on it since then and they seem ok. im going to swap them out shortly just to say i did but i really dont think i NEED to.

Originally Posted by ATVracr
I was talking about the tune up.
Around 250 is where you have to be closer or you can hurt parts.
Rich with not enough timing isnt a safe tune up.

If your 200 shot tune was rich then pulling 4* instead of 2* and keeping the same jet spread and fuel pressure may not be "safe".

Lean it out and pull 4* or just pull 2*.

I'm no expert just my opinion.
hey you know way more then i woud so talk away. im listening. right now im only pulling 4* of timing on the 200 hit which is less then i think i should. thats the only reason i was going to pull 2 more. ill do it on the dyno to make sure everything looks/ sounds clean and i can keep and eye on all the gauges etc. but by all means educate me.

Originally Posted by Nitro Dave's Nitrous Outlet
Sounds like you are on track.
What type of power and compression is your motor N/A?
250 is a cake walk with our plate as long as the tune up is there.

AS you move up in these higher HP levels you need to be watching the plugs to find your hot cylinder.

Dave
the motor is 11.5:1 and is making between 515-530 rwhp and 495-500 rwtq depending on the dyno and weather. find the hot cylinder? explain?

Originally Posted by blu byu EH
I just got the new GM High Tech and You ls2 bait have a nice car. I like your burnout. LOL
thank you sir it was awesome to do the shoot. ton of fun. and yes that burnout cost me $600 lol.

Originally Posted by black01_WS6
Tommy- you said you have a lot of jets and I am in the need of some for a 125 or 150 if you have any laying around- I need fuel and N20. My old jets don't work in the new plate. If not no biggie

I still like the idea of a second stage, especially when pushing over 200. It is a lot less shock on the drivetrain/parts.
i like the idea of a second stage too i just hate all that extra crap under my hood. what plate are you using now? ill see what i have.


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