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Jan 5, 2004 | 10:38 AM

Phil99vette

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From: Port Tobacco, MD

Big cam guys 230+...

What size hole do you guys have in your TB?
Phillip

Jan 5, 2004 | 10:41 AM

Hannibal

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From: Waldorf, Maryland

228/230 - no hole on TB - per Shaners recomendation.

Jan 5, 2004 | 10:52 AM

SouthFL.02.SS

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From: Miami

Stock. Resolve idle issues with a tune.

Jan 5, 2004 | 10:53 AM

Phil99vette

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From: Port Tobacco, MD

My old 230/230 114lsa would idle fine without a hole but with my new 232/238 111lsa I found it necessary to run a small hole....

Jan 5, 2004 | 10:59 AM

Hannibal

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From: Waldorf, Maryland

Let me rephrase my post - no modification made to stock hole diameter. Was also told to resolve idle issues with tuning.

Jan 5, 2004 | 12:28 PM

DAPSUPRSLO

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From: Salisbury,MD

Quote:

Originally Posted by Hannibal

Let me rephrase my post - no modification made to stock hole diameter. Was also told to resolve idle issues with tuning.

I agree, you do not need to enlarge your tb whole. I enlarged mine two sizes from stock but this was with a 224 110lsa cam. I now run a 230/236 107lsa cam with the same sized whole. Most, if not all, idle issues can be solved in the VE tables says the ls1 edit tuner.

Jan 5, 2004 | 12:31 PM

gomer

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From: The Confederacy

Stock hole here too.

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Jan 5, 2004 | 12:33 PM

blacktransam

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From: apoopka, fl

231 237 and went with an 11/64 size bit through stock hole. just opened it up a tad. Not all of us can afford tunes right away. But this got it to idle rough but idle. As u drive it learns it's idle on it's own.

Jan 5, 2004 | 12:47 PM

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Bink

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Quote:

Originally Posted by Phil99vette

What size hole do you guys have in your TB?
Phillip

239/251, 106 - 1/4" hole. Tried to tune it without a hole. Can't get enough air to keep it running-> with IAC maxed out.

IAC MAX = 63.75 = 255 steps.

Hmmmm....now that it's pretty well tuned maybe I need to buy a new blade and see if it will work through IAC alone.....ETC- Vette.

joel

OOPS - I said 1/2", meant 1/4". You could throw a hat through a 1/2" hole!!!

Last edited by binksz06; Jan 5, 2004 at 08:35 PM.

Jan 5, 2004 | 12:48 PM

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Brains

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From: Katy, TX

238/240 .. stock, no hole... LS1Edit to the rescue

Jan 5, 2004 | 12:51 PM

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LOnSLO

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From: Gainesville, GA

1/4" hole with the old 230 cam. Was too much though, as IAC's were pegged at 0.

Jan 5, 2004 | 03:45 PM

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Slowhawk

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From: Bridgewater,Ma

Mine is 2 drill bit sizes bigger from my old 224 and no tuning back then..I still drill the TB alittle with Edit.Makes the idle alot smoother at low idle settings.