Head/Cam TPI - Need Input

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Apr 4, 2004 | 09:56 PM

Vic'89

Thread Starter

Safety Car

Joined: Jun 2000

Posts: 4,870

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From: Long Island, NY

Head/Cam TPI - Need Input

I'd like some feedback on anyone running a Heads and Cam TPI combo.

What Aftermarket Heads or Cam are you running ?

Any Track times or Dyno sheet would be helpfull.

Thanks

Vic

Apr 4, 2004 | 10:10 PM

65Z01

Team Owner

Joined: Dec 2000

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From: SE NY

Cruise-In II Veteran

Re: Head/Cam TPI - Need Input (Vic'89)

Vic, check out that "Result of L98 mods" page on my site. The table is taken from an old mag. article with similar mods to a '90 L98. You will notice that Vette was not as quick as yours with similar mods...maybe the gears...and it was a 6-speed???

The just ported & worked the #113s and tried two TPIS cams but it will give some idea of what to expect. I can see you gaining about 50-60chp with your intended mods, after they're tuned in of course.

Lets see what contemporary info comes in here.

Apr 4, 2004 | 10:37 PM

ZD1

Burning Brakes

Joined: Aug 2000

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From: Albuquerque NM

Re: Head/Cam TPI - Need Input (Vic'89)

I HAD a 224/230 on 112 Compcams and ported fastburn heads. I had a real pita because the had a lot of dynamic vacuum between 1500 and 4500 at part throttle so I was running realy lean. Even thogh I compensated with a custom chip and more fuel...all I did was run lean (>17) at part throttle and rich (<12). I was running a SDPC base and the stock runners. The heads flowed about 265 CFM, and the whole inuduction path flowed (gulp) 198 CFM!

Basically, my idea of a high speed tuned system worked, but before I could tune it. I know run a MRIII with same duration 114 deg sep and MORE LIFT!

Apr 5, 2004 | 02:12 PM

Vic'89

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From: Long Island, NY

Re: Head/Cam TPI - Need Input

Any more input ?
There has to be more guys running aftermarket Heads/Cam on a TPI.

Vic

Apr 5, 2004 | 03:15 PM

Red Tornado

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From: OBAMA IS HITLER

Re: Head/Cam TPI - Need Input (Vic'89)

I agree, there has to be tons here. You know my setup (see April '04 mods in my sig), but its yet to happen since I'm waiting on the heads. I should have it all installed in a few weeks. Sorry I can't be of any use at the moment, I wish I could :(

edit: I think that eventually you and I will be in about the same boat in terms of mods.

[Modified by bradvette, 3:16 PM 4/5/2004]

Apr 5, 2004 | 05:25 PM

1MoorTym

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From: West Islip New York

Re: Head/Cam TPI - Need Input (Vic'89)

I basically have the same upper end as you. I went with a ZZ4 cam because its a perfect match to the 113 heads which I didn't plan on changing. You could probably go with a ZZ9 (maybe a little larger) before the stock heads and the rest of the intake are an issue. I don't have any numbers at the moment, but just put a custom chip in and plan to take it the VetteDoctors to dyno as soon as it stops raining - if ever.......

Apr 5, 2004 | 07:43 PM

redfast

Burning Brakes

Joined: Nov 2003

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From: Cape Cod Ma

Re: Head/Cam TPI - Need Input (1MoorTym)

I have a ported Accell base, ported D-113, LPE 119 cam@.560" lift ported slp runners and plenum. Alot of people are running this combo into the low 12s :thumbs:

Apr 5, 2004 | 08:00 PM

Vic'89

Thread Starter

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Joined: Jun 2000

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From: Long Island, NY

Re: Head/Cam TPI - Need Input (redfast)

Quote:

I have a ported Accell base, ported D-113, LPE 119 cam@.560" lift ported slp runners and plenum. Alot of people are running this combo into the low 12s :thumbs:

Do you have a superram or TPI ?

I dont see any examples of low 12 second TPI Vettes.

Vic