BUYING the HOTCAM

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Dec 12, 2006 | 05:40 PM

USAFPILOT

Thread Starter

Drifting

Joined: Oct 2004

Posts: 1,957

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From: The Woodlands TX TX

BUYING the HOTCAM

I'm ordering the GM Hotcam kit from Summit for Christmas. What else am I going to need? I think I'll need an AFPR and new injectors, also plugs...not going to do the OPTI. I just dont know which injectors to get. I think maybe a new throttle body as well. I want to get the throttle body and exhaust from TPIS. I'm going to have the PCM done through the mail. Is there any need to port LT4 heads? My goal is to have the LT4 run like the engineers at GM wanted it to. I'm looking for a solid 400HP at the crank. I think this cam, and some headers equal length headers should do the trick.

Dec 12, 2006 | 06:52 PM

cprgmr

Melting Slicks

Joined: Sep 2000

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From: Green Bay WI

Quote:

Originally Posted by USAFPILOT

I went with SVO 30lb/hr injectors when I did the top end on my '93. I'm thinking that if you're just doing the hot cam, you don't need new injectors. What's the budget for this project?

Dec 12, 2006 | 09:02 PM

USAFPILOT

Thread Starter

Drifting

Joined: Oct 2004

Posts: 1,957

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From: The Woodlands TX TX

I'm in the 2K range.

Dec 12, 2006 | 09:06 PM

tjwong

Le Mans Master

Joined: Jan 2003

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From: Portland Oregon

If you port your heads then you will need a larger cam to support the heads. Not a bad thing really but it just means you need to order something else other than the hot cam

Dec 12, 2006 | 09:55 PM

cprgmr

Melting Slicks

Joined: Sep 2000

Posts: 2,710

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From: Green Bay WI

Quote:

Originally Posted by tjwong

If you port your heads then you will need a larger cam to support the heads. Not a bad thing really but it just means you need to order something else other than the hot cam

2K isn't going to get you everything you want as you'll spend that on heads alone. Listen to Tom - he knows his stuff!

Dec 13, 2006 | 11:31 AM

USAFPILOT

Thread Starter

Drifting

Joined: Oct 2004

Posts: 1,957

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From: The Woodlands TX TX

I'll just leave the heads alon then. I want a great running Hotcam setup, thats all.

Dec 13, 2006 | 11:58 AM

STL94LT1

Race Director

Joined: Jan 2002

Posts: 12,263

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From: O'Fallon Missouri

No need for new injectors with just a Hot Cam upgrade. Your stock 28 lbers will work just fine.

Dec 13, 2006 | 12:23 PM

TM-Z06

Safety Car

Joined: Sep 2003

Posts: 3,692

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From: Hayward CA

Quote:

Originally Posted by STL94LT1

No need for new injectors with just a Hot Cam upgrade. Your stock 28 lbers will work just fine.

And no need for an AFPR. Spend the money on opening up the exhaust (LT headers, cats, cat-back), gears, and a tune.

Oh - you will need a new timing chain. I suggest Cloyes