Would the cam in have in your car now be ok with mine? TF 23* Edelbrock Intake AS&M LTR ? Thanks

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89 FORMULA 350
99 Grand Prix GT

 

I'm not tim, but when he had AS&M semi siamesed LTRs he was running 12.6 @ 108 (? on mph) w/ the comp XR w/ 218/224.
His current cam (230/245) would be way too big for an LTR set up. It would sound good, but never run correctly.

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

Ed said it. With a CC 218/224 112LSA cam w/ 1.6 rockers I was running 12.5's@108mph. I believe that this setup would have easily gone low 12's with bigger headers and tuning. However, I wanted more. I swapped to the MiniRam and currently have a 230/245 cam and am hoping for 11's. The 230/245 cam is way too friggin big for a long runner type setup.

Tim

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TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

[This message has been edited by TRAXION (edited September 25, 2001).]

 

so go with your 218 cam?

 

How about for a 385 with LTR? I know this intake isn't optimal, but I won't have funds for the SR intake at the time of completion of the motor. Thanks

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'89 Camaro RS 6cyl. auto, don't know how much longer I'll have it.
'90 Iroc TPI 305, 5 spd B&M Ripper shifter, hopefully I can rob a bank or something and get more
www.geocities.com/irocnroll90

 

The problem IMO with an LTR set up is it's restriction of the ability to mover air/make power. A 385 is naturally going to be trying to move a lot of air. Giving it a big cam to support it's desire for air, yet saddling it with an intake that won't feed it that much air is a big mismatch. It will run, but it will be very choked off. If you're sure you're swapping inatkes down the road, then running it for the interim won't hurt you, it just won't be optimal (i.e. it will run slower than if it had an appropriately sized cam)

 

How about the LTR setup with a siameesed base?

 

I'm going to try on my 388 the SLP's fully dug out and the intake siamesed as well with a good porting on the plenum and 58mm tb with 234@.050" duration, tf heads, slp headers. I know a mini-ram would prolly be better, but I already have all the TPI stuff so might as well give it a try and de-tune the runners as much as possible.