Author Topic: cams (Read 2098 times)

toyman2 · « **on:** Jun 29, 2005, 08:38:36 PM »

what cam should i use for my toy (86 runner) with stock EFI
LC header and 2 1/4 exhaust

kyle_22r · « **Reply #1 on:** Jun 29, 2005, 08:44:43 PM »

what kind of power are you going for? low down? high end? mid-range?

i'm going to be running an engnbldr 268 on my 20R head with oversized valves, as soon as it gets back from the machine shop. it's a 1500-5500RPM range cam. with the 4-1 LC header i think you might see better results on a higher end cam like an engnbldr 270.

Duffil · « **Reply #2 on:** Jun 29, 2005, 09:00:35 PM »

check out the specs(lift/duration and rpm usage)...you might be able to find a cam with the same range/power for less...as Clevite makes Yota cams...three stages, stock, 1 and 2...available from any NAPA or anyone who carries Clevite(DANA) engine parts...and if your gonna cam it, talk to the machine shop about getting your seat pressure higher...helps make a little more power!

brainlessfool · « **Reply #3 on:** Jun 29, 2005, 09:04:28 PM »

Got mine from NAPA!

toyman2 · « **Reply #4 on:** Jul 01, 2005, 03:05:35 PM »

i went with the LC efi pro

seat preassure higher whats this more on this please

Duffil · « **Reply #5 on:** Jul 01, 2005, 07:11:38 PM »

you can use valve spring shims or springs from a different vehicle to bring your valve seat pressure up a little...brings a little more performance with the more aggressive cam.

kyle_22r · « **Reply #6 on:** Jul 01, 2005, 09:59:01 PM »

that sounds kind of hackish if you ask me. adding more preload to your valve springs will probably cause them to wear out a lot faster. i think a double valve spring setup would be the way to go if you did that. besides, all stiffer springs will do is make the engine able to rev higher without the valves floating!

Author Topic: cams (Read 2098 times)

toyman2

cams

kyle_22r

Re: cams

Duffil

Re: cams

brainlessfool

Re: cams

toyman2 [OP]

Re: cams

Duffil

Re: cams

kyle_22r

Re: cams

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	Author Topic: cams (Read 2098 times) 0 Members and 2 Guests are viewing this topic. toyman2 Rock Master Turtle Points: 1 Posts: 224 Member since Jun '04 Crawling with Marlin cams « on: Jun 29, 2005, 08:38:36 PM » what cam should i use for my toy (86 runner) with stock EFI LC header and 2 1/4 exhaust Logged kyle_22r The 1K Club Turtle Points: 530 Posts: 1,233 Member since Dec '03 yellow beast Re: cams « Reply #1 on: Jun 29, 2005, 08:44:43 PM » what kind of power are you going for? low down? high end? mid-range? i'm going to be running an engnbldr 268 on my 20R head with oversized valves, as soon as it gets back from the machine shop. it's a 1500-5500RPM range cam. with the 4-1 LC header i think you might see better results on a higher end cam like an engnbldr 270. Logged Duffil lurker Gold Turtle Award Turtle Points: 138 Posts: 4,844 Member since Nov '04 Re: cams « Reply #2 on: Jun 29, 2005, 09:00:35 PM » check out the specs(lift/duration and rpm usage)...you might be able to find a cam with the same range/power for less...as Clevite makes Yota cams...three stages, stock, 1 and 2...available from any NAPA or anyone who carries Clevite(DANA) engine parts...and if your gonna cam it, talk to the machine shop about getting your seat pressure higher...helps make a little more power! Logged brainlessfool It's not my problem if you can't hear the voices too. Gold Turtle Award Turtle Points: 2730 Posts: 4,207 Member since Jun '02 drive fast or the devil may get ya Re: cams « Reply #3 on: Jun 29, 2005, 09:04:28 PM » Got mine from NAPA! Logged A good day working, that's just sick toyman2 [OP] Rock Master Turtle Points: 1 Posts: 224 Member since Jun '04 Crawling with Marlin Re: cams « Reply #4 on: Jul 01, 2005, 03:05:35 PM » i went with the LC efi pro seat preassure higher whats this more on this please Logged Duffil lurker Gold Turtle Award Turtle Points: 138 Posts: 4,844 Member since Nov '04 Re: cams « Reply #5 on: Jul 01, 2005, 07:11:38 PM » you can use valve spring shims or springs from a different vehicle to bring your valve seat pressure up a little...brings a little more performance with the more aggressive cam. Logged kyle_22r The 1K Club Turtle Points: 530 Posts: 1,233 Member since Dec '03 yellow beast Re: cams « Reply #6 on: Jul 01, 2005, 09:59:01 PM » that sounds kind of hackish if you ask me. adding more preload to your valve springs will probably cause them to wear out a lot faster. i think a double valve spring setup would be the way to go if you did that. besides, all stiffer springs will do is make the engine able to rev higher without the valves floating! Logged