Bench race THIS; TPI 283; biggest street/strip cam?

[Caveman]

Okay, so I'm itchin' to start some crap with this 283 I got from Bruab.

I've got a TPI setup, and yes, it will require a custom chip, or MS conversion...

BUT;

What's the biggest cam that'll work?

Assume 9.5:1 compression, 4.10 rear gear, Vortech heads, etc..

Yes, the smaller cubic inch motor will make a given cam act bigger... And the 283 will let the TPI rev a little more than a TPI 350... What's the minimum vacuum the TPI will require?

[fahrenschnell]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

I have a comp 292H for a SBC....That would probably work great.

244/244 @ .050 .501/.501 lift.....Should be pretty big for a 283....

Seth

[HillbillySailor]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

I think the Comp XE250H would be another good choice.

206/212 @ .050 .432/.444 lift. Not quite as aggressive as farenschnell's choice, but still should make that 283 a screamer.

Funny you mentioned the 283, as i was thinking of building one myself. My son wants an older Vette. I might get it, but if I do, I want something a little milder under the hood than a 350. My build plans for the 283 is as follows...

Bore the block .030 over
Install flat top pistons
Use a set of 305 heads (port, polish, blend the bowls, 3 angle valve job)
Comp 240H cam
Edelbrock 600 CFM carb, or TBI.

That should make it a fun daily driver, but not so much as to kill him. After a few years, I can always install a bigger engine if I feel he's ready for it.

You might want to think of running 305 heads yourself.

[jays67]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

all my 283's have eather been carbed or MFI but
simple punch out to wild and stroked but
i have used an isky 501 with great resluts
used a 350 hp 327 factory cam with a stick was great {mild street motor}
and our race car motor has a .632 solid roller but it is poked AND STROKED TO 349CI ;D

[SpiderGearsMan]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

a duntov 30/30

[jays67]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

yes nother good choice rev's good
have 2 one off proto type duntov cam's for sbc from around 61ish even marked by him given to my grandfather

on a side note 283 side note
'58,'58,'60
my grandfather built the corvette for one of the guy's in the neiborhood was fastest corvette for thos's three years in western NY till the poor lil rich boy who's dad owned the corner gas station paid big money to have his whole car built to beat the one my grandfather built was at nigira drag strip

ok sorry high jack over back to hi tech 283 chat lol

[JeffMcKC]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

I like the GM second design off road cams, yeah theres more power from others but they sound great. I know its a solid ....... but...... if you run some hyd. on it at .15 lash they work great and you dont hve to lash them all the time

[Ron Ward]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Put one in with 6-foot lift and 8 days duration! ;D


Ron

[cantvalve16]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Okay, so I'm itchin' to start some crap with this 283 I got from Bruab.

I've got a TPI setup, and yes, it will require a custom chip, or MS conversion...

BUT;

What's the biggest cam that'll work?

Assume 9.5:1 compression, 4.10 rear gear, Vortech heads, etc..

Yes, the smaller cubic inch motor will make a given cam act bigger... And the 283 will let the TPI rev a little more than a TPI 350... What's the minimum vacuum the TPI will require?

With the stock Vortech heads, you will be limited to something like .480 lift. Oh, and does the TPI setup bolt up correctly to the Vortechs with the bolt hole issues?
Sorry, not so much "which cam?" related, but more questions about this combo.

[Mr4Speed]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

To put a TPI on Vortec heads you have to buy the $400 intake base from Scoggin-Dickey.

[min301]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Or drill the Vortec heads for a 12 bolt intake.

[SpiderGearsMan]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

no - you have to buy the intake - vortech heads are raised intake port and they don't line up -

world products makes a less shrouded 283 head

[min301]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Correct.

PP has a cheaper one, right?

[Caveman]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Correct.

PP has a cheaper one, right?

GM PP?

[min301]

Re: Bench race THIS; TPI 283; biggest street/strip cam?

Disregard me, I wasn't paying attention...TPI, doh. :-[