graphicideas1

i am trying to keep the stock look - i have a lt4 hotcam - headers - ported stock heads - ported plenum - which intake runners are best & what rpm can i get this going to with new headers?

gta324

For stock look AS&M LTR.

(arizona speed and marine large tube runners)

/N:

graphicideas1

what rpms will i be able to get out of the intake with aftermarket runners?

BOSS 357

iTrader: (1)

AS&M by far are the best. I will be using them and if used in conjunction with an aftermarket base, you can probably get usable power to 5500.

Eric

tenpin842

I like my edelbrock ones. Plus if you wanted to port them, theres plenty of aluminum there.

gta324

If stock look isnt a must, then look at SLP or AS&M siamesed...

https://www.thirdgen.org/forums/tpi/...feb-super.html

/N:

'Shifter

iTrader: (2)

Then send 'em to Mikey Graycar! Home

Demon355

iTrader: (1)

AS&M by far are the best you can get, I have mine on order and should get them in a few weeks. What other mods do you have? Your setup sounds close to what I'm running right now.

graphicideas1

by stock i mean i want to keep the tpi - any brand runner is fine

gta324

With the hotcam I would have looked at siamesed ones. SLP's or AS&M. See dyno test in the link i posted above to compare them.

/N.

graphicideas1

how are the edelbrock?

3rdgenZ

iTrader: (1)

they show all the reasults of most runner types in that link that he posted.

25thannivZ28

I have them on my car now. Just yesterday I had received my MiniRam in so sometime soon I will be removing my SLP Twin runners to sell. I "watched" a listing on ebay with these that sold for $212.00, so in that area i'd be lookin for. If you want pics, i'll send some. I don't have any on this computer, I have them at home.

graphicideas1

yes - send pics to graphicideas1@msn.com - when will they be available?

graphicideas1

are twin runners different then the current ones?

fire350tpi

what about a first injections Package.. There total stock looking and flow WAY better then stock.. From a post i saw a while ago it was on par with the hsr and u can hook up egr

Scania

I bought these AS&M runners , powdercoated black



Here you can see one stock and one AS&M runner. The AS&M is a lot bigger

Demon355

iTrader: (1)

It's amazing the difference between the two runners. I'll be glad to install my AS&M runners once they arrive. I doubt I'll paint mine though, I like the metal finish they come with, but who knows.

How much did you pay Scania?

25thannivZ28

As I mentioned, they are currently on my car as I just received my Mini-Ram yesterday. But if you are interested, I can keep you first in line before I make them available for sale. My estimate would be in about 3 weeks to a month. I'll email ya later this evening.
-Mike

Scania

They where used one season before i bought them and i paid 300 dollars for them. A good price in Sweden , we have to pay shipping, oversea handlingfee and 25% tax on everything we buy from america.

Demon355

iTrader: (1)

Did you notice a gain when you installed them? Like seat of the pants feeling?

Scania

I just got them and right now im going to port the intake , unless you do that you wont feel that much. See my mods here https://www.thirdgen.org/forums/tpi/...-my-305-a.html

GOY

I would buy the SLP's, then cut the wall in the top half of the runner down by about 2 inches, or as far down as you can get and still have it come out nice. Especially with that cam!! There's no way I'd run single LTR's with a cam like that, but having said that - I know it's been done, and many times over at that.

Either way, I think you could really benefit from "Effectively" shortening the runners a few inches by grinding out that wall. I wouldn't go "Full hog" on your combo though. Plus, on that outside, people would just think you were "Another guy" that bought "Those runners" from Summit.

graphicideas1

what do you mean you would not go full hog? what rpms can i get doing that?

rel3rd

iTrader: (1)

Scania: Any possibility of you giving me a measurement of the tubes inside diameter? That way I can get a head start on my plenum and base intake ports while waiting for the AS&M runners to show up.....

If you could either post them, or PM them to me, I'd greatly appreciate it.

Scania

I will do that tonight, no problem.

rel3rd

iTrader: (1)

That would be fantastic!

Scania

-damn its hard to get an exact measurement i dont have the best tools but ive got like 42-43mm. Maybe someone else can give you a more exact reading. I have no idea what that is in inches since we use the metric system over here

rel3rd

iTrader: (1)

MM's are fine! I have a digital caliper that measures either inches or millimeters.

Thanks a lot!!

Scania

Sure , no problem . Just dont cut to much incase the measurement is off by a mm or so.

TCH

With my digital caliper I am getting 41.75-42.2x mm out of my ASM runners. Turning it to inch indication gives something like 1.644"-1.663".

Scania

Yeah 42.2mm sounds like right to me.

LT1FUN

Thanks for the pictures Scania. I always like to see close-up shots of aftermaket parts next to the stock parts. It's the best way to illustrate the differences (if any) between the two.

It's ridiculous how much bigger the runners are compared to stock. That right there is the reason AS&M's flow the best of any TPI runner on the market. I can't wait for mine to arrive.....

Say, when you installed them on your car, as Demon355 already asked, did you feel a "seat of the pants" improvment?

I know the stock intake base is a huge restriction but you should still gain some power by just upgrading the runners no?

TCH

Yes, you will gain 10-15hp with runners in a stock 350. Maybe 20-25hp with runners + high flow base.

So, not very big gains per dollar on stock engine. But, if one decides to upgrade a cam, heads etc. in future the better flowing intake will give you more.

D's89IROCZ

That above test of the runners was a bit tilted though. The ran the edelbrocks with a stock TB and a stock plenum . The ASM was with a ported plenum and 52mm T.B . Wonder how much of a difference there would be if they had both the same parts. The bigmouth system is more of an indictor of what would happen . Seeing how the base is an edlebrock base...cleaned up . It also had the ported plenum and bigger TB in it's test. Then take into account that you can really port and siamese the edelbrocks . So I would say they are a better runner IMO.

3rdgenZ

iTrader: (1)

true, the edl's as with the SLP's you can port, and siamese making them flow better. but a lot of us love the stock look of the TPI. so that makes AS&M our choise.

matt_p

Stock runners are about 1 7/16", those AS&M are about 1 11/16". Its a big increase

Jetmeck

iTrader: (3)

Buy the gasket set for those exact brand runners and port off that...............................

rel3rd

iTrader: (1)

There's a few problems with that idea Jetmeck...

1. You're not going to find any local parts houses with runner gaskets for an aftermarket runner. (Not to mention that I don't want to buy a gasket kit, for a set of runners that are on the way, and already come with gaskets)

2. I've never yet, in 26 years of wrenching, seen a gasket that matched the ports on anything, right out of the box.

3. You don't want to port the parts to match a gasket, you want to port the parts to match the parts.

I've gotten the measurements I need, from the members were kind enough to post above, and will rough my plenum and base in, using those measurements. Thanks.

Scania

Yeah i had to order new gasket directly from AS&M not even summitracing had gaskets fro these runners . They only had gaskets for the edelbrocks.

Jetmeck

iTrader: (3)

I don't remember saying you could get them locally ?

The point here is that will get you real close and for sure not let you go too far as could be the case from some sort of half assed measurement over the internet...no offense intended......it's your money you are gambling with....good luck.

rel3rd

iTrader: (1)

Point taken.
I should have clarified...I have gotten the same measurement from four different people who used calipers to measure with, not from one guy who used a tape measure, lol. But I do understand where you were coming from. As for "ordering" a gasket. That's kind of silly IMHO, for no other reason but because I have the runners (with gaskets) on the way, and I "could" wait if need be.

Worst case scenario...I could simply wait the remaining two weeks or so, and use my own actual runners as the template. But like I said, with four separate caliper measurements provided to me, that all are the same, I feel confident that I got an accurate measurement already. Besides, I'm pretty sure that anyone who actually owns a caliper for measuring, also knows how to use and read it.

But I do appreciate the suggestions and no offense taken whatsoever. We're all here to help each other, and I mean no disrespect in my replies to you or anyone else. Thanks again for the replies, and for the good luck wishes.

Scania

I hope you get your runners soon , im waiting for the gaskets to arrive from the US so i can get started with my project.

Demon355

iTrader: (1)

rel3rd and I should recieve our Runners in a couple weeks. When did you send your order in rel3rd?

rel3rd

iTrader: (1)

September 11th, was when I paid Fast Toys, but I thought they ordered them all on the 15th?

Demon355

iTrader: (1)

Yeah your right.

2-3 weeks I would think until they have built all the runners for our orders. Couple more to ship them out. End of October seems to be when we'll see anything. How much do you think you will gain with the runners alone? Then with the runners and base? Are you going to install the runners and see what you get before the base or are you going to install the runners and base?

My base is ported to match the port work done to my heads but other than that, it's stock. Once I get my runners I'll see what I can do about making the inlet holes on the base (for the runners) bigger. My plenum well get the same attention.

rel3rd

iTrader: (1)

If I don't decide to wait for a set of heads to materialize out of my wallet dust, then I'll be swapping on the slightly ported Edelbrock base, the AS&M runners and the ported Plenum, all at the same time. I don't really have any hp# goals, just want to let the old L98 breathe as best I can with what I have.

I am hoping that the runners are sent out as they are done, instead of all at once, and not until all are made...that would kinda suck.

Demon355

iTrader: (1)

We had about 20+ orders at the end of it so they have quite the bill to fill, lol! Who knows what they will do. That Edelbrock base is probably what I'll be picking up as well, if I can't get an Accel Hi-flow one. I know they are all the same but for some reason, every company out there likes to change their prices.

Guest

The supplied ASM gaskets dont exactly match the size of the runners, as noted above.

rel3rd

iTrader: (1)

That's what I mean. I wouldn't understand the logic of making 22 sets of runners BEFORE shipping any...I'm hoping they ship them as they are made.

I lucked out on my Edelbrock base. It was brand new, on Ebay, and I got it for $275.