427 coming along

[Pete]

Originally Posted by Polo-1

I heard it's over 370 rwhp on a 100% stock car. air filter to tail pipes-factory stock..
My 100% 92 car was 323rwhp then hit 397 after filter,chip,porting,headers,corsa no cats.

Over 370 on a stock quiet car would be a hell of alot of fun. SLEEPER.....

WOW,that's the strongest stocker i've seen yet.

Should run 117-+1

I should add from what i have seen from 370rwhp on DynoJet

Pete

[flyin ryan]

Originally Posted by Polo-1

I heard it's over 370 rwhp on a 100% stock car. air filter to tail pipes-factory stock..
My 100% 92 car was 323rwhp then hit 397 after filter,chip,porting,headers,corsa no cats.

Over 370 on a stock quiet car would be a hell of alot of fun. SLEEPER.....

Except I ported it a little, right? To be clear we're on the same page. But yes, stock manifolds, exhaust, cams, T/B etc. Would have liked to dyno before I took it apart in a perfect world but didn't work out. Not that big of a deal, I would assume It wouldn't be any better that your 92 Kevin. So basically porting, valve seals added to the Exh. side & timed the cams & one cam was pretty far out, I thought anyways. Should point out too, I just used stock Dia. gaskets for the Inj. housing's & plenum. By the time I opened things up to match those I was happy with the size. I was just playing around with my junk here, never set out for it to be a maximum effort deal or anything. Stealing Todd's thread again, sorry...

[flyin ryan]

Originally Posted by Pete

Here is my thoughts on this.

If you think old school pushrod motor with single big ports then yes worry about velocity LT5 has 2 small ports i don't think you can port them big enough to slow down velocity.

Pete

Ryan what the heck did the dyno show?
I'll tell you what your MPH should be

I guess here is where it falls...personally I don't think LT-5 ports are small . I was actually quite shocked first time I went in & worked out the area. Area is area, an engine doesn't know if it has one port or ten, It's just drawing. I could look up some numbers of say small block Chev. C.S.A.'s compared to LT-5 just to see, can't remember off top of my head. Working on Hemi junk today , LOL. You've got your opinion Pete, That's cool, I respect that/you .

I can figure out MPH, that's not a problem. Just not a the top of my list. Not a big deal to me. I'll maybe take it to the track this year, we'll see. Did my 90 just for fun, had a couple oil leaks to fix, Cooler lines & Breaher Box plus I wanted to add valve seal's to the Exh. so while I was in there....

[Paul Workman]

Originally Posted by flyin ryan

I guess here is where it falls...personally I don't think LT-5 ports are small . I was actually quite shocked first time I went in & worked out the area. Area is area, an engine doesn't know if it has one port or ten, It's just drawing. I could look up some numbers of say small block Chev. C.S.A.'s compared to LT-5 just to see, can't remember off top of my head. Working on Hemi junk today , LOL. You've got your opinion Pete, That's cool, I respect that/you .

I can figure out MPH, that's not a problem. Just not a the top of my list. Not a big deal to me. I'll maybe take it to the track this year, we'll see. Did my 90 just for fun, had a couple oil leaks to fix, Cooler lines & Breaher Box plus I wanted to add valve seal's to the Exh. so while I was in there....

To paraphrase Struter Martin (the warden in Cool Hand Luke): "What we have heah...is failure to demonstrate!"

In one corner we have a group that has demonstrated some pretty substantial numbers, both on dynos and the track using ports at or above the vaunted "36mm", and in the other corner a professional builder that says smaller is better. What we need is a volunteer mule car, someone that would agree to bolting on plenums and IHs from each approach and see what what happens. We could be talking dyno comparisons (the same dyno/same day) and track times too. I have a plenum and IHs out of the car at the moment - with "good ol boy" ports. someone wanna put together some not so big ports e.g., well under 36mm and see what is what????

Any takers? I would be very interested to see a direct same-day same-car comparision. What U think? (and again...apologies to the OP for railroading his post.)

P.

[flyin ryan]

Todd would be the obvious choice if he's willing, don't need to do the work, it's already done . If you can't find a similar car (cubes) just work the math backwards. Good idea Paul, in theory, not sure it'll be that easy to pull off though, unfortunatly. The guys on here that are interested should search out 'Inertial Supercharging'...not sure what is out there but I'm thinking quite a bit...

[jonszr1]

there is a 2 day test and tune @ famoso the 3 rd weekend in feb . on my 90 are the siamesed injector housings and dividerless plenum . my 92 has the callaway ported inj housings and plenum which are on the smaller side .stk gaskets plenum and injector housings work on the callaway, i could try the 2 different setups on the callaway and see , but to be fair i would think the callaway setup would have to be sent to ryan for him to look over and adjust . pete know how the callaway porting looks ,maybe he can chime in . i would be more than happy to be the test mule. i could get my buddy jeremy to video the whole deal .

[flyin ryan]

For the record, it's not 'A engine builder...(Me)', obviously Todd's guy has parallel thinking as myself, especially considering his cubes. Funny, the world I live in 'Big' is in the minority...

[flyin ryan]

Originally Posted by jonszr1

there is a 2 day test and tune @ famoso the 3 rd weekend in feb . on my 90 are the siamesed injector housings and dividerless plenum . my 92 has the callaway ported inj housings and plenum which are on the smaller side .stk gaskets plenum and injector housings work on the callaway, i could try the 2 different setups on the callaway and see , but to be fair i would think the callaway setup would have to be sent to ryan for him to look over and adjust . pete know how the callaway porting looks ,maybe he can chime in . i would be more than happy to be the test mule. i could get my buddy jeremy to video the whole deal .

Be hard to make it happen, but something like this would be cool to do at BG

[LGAFF]

I think Ryan is talking about this............

http://www.tornadoair.com/buy1/

[Pete]

More thoughts.
Ryan i'm not saying bigger is better or more power.
I have tested big siemesed plenum with big siemesed IH's on my 350 and dyno tested with no gains, yes there is a point where too big you don't gain anything.

I will also add cam timing is worth power

Now on big inch motors it might be a different story.
Here is what i have tested.
Tested the Hogan's intake on the 421ci it gained 10-12rwhp over the stock ported intake.
Made a believer out of me on LPE's droped & siemised plenum & IH's he had sad it was worth 15 chp.
Of course peak power was a couple hundred RPM higher this might be the effect of the shorter & straight runners also the Hogan's intake box/plenum is bigger then stock plenum.

Man did we ever screw Todd,sorry Todd
Maybe start a new thread.

If we can get a couple of sponsers for gaskets,car,dyno time/expense we can do the testing that Paul mentioned.

I'm also interested to see what the magic porting # would be.

Pete