TPI shootout in Feb Super Rod magazine - Page 3 - TPI - Third Generation F-Body Message Boards

OMINOUS_87 · 01-11-2005, 08:21 PM

Quote:

Originally posted by MikeH
A larger cid engine could use the shorter runners.

I guess we just love our intakes to death............

Also having been there and done that with several combos.

A used Superram is only maybe 200$ more than a set of LTR big tubes.

Well well worht the 30hp extra topend pop.

Orr89RocZ · 01-11-2005, 09:20 PM

yeah i have been huntin for a used superram in the 700 dollar range. hope it works out.

antoine · 01-11-2005, 09:34 PM

i have that magazine too,and summit racing sales the superram now for $779 for top half and for base 517 scoggin dickey sales the gm 383 with the super ram install on it.

OMINOUS_87 · 01-11-2005, 09:45 PM

Quote:

Originally posted by Orr89RocZ
yeah i have been huntin for a used superram in the 700 dollar range. hope it works out.

The whole system?

I paid $500 for my upper, plenum runners, used.

I bought my SDPC base new.

83BlackBeauty · 01-11-2005, 09:52 PM

WOOOOHOOO!!!:hail: :hail: :hail:
Right on Ominious! I knew someone would get these scans! I was fortunate enough to find it, I just thought it was very important for all of our fellow members to be able to see this! I cannot thank you enough! :yourock:

P.S. I plan on bringing more members to the boards, now that I am in school. Apparently alot of people in the area are interested.

Fox Valley Thirdgen crew up and coming!

VincentZ28 · 01-11-2005, 10:06 PM

Jegs has the Super Ram for $750 new. I bought mine in 1997 for $700.

TPI-Formula350- · 01-11-2005, 10:57 PM

great write up

Kennerz · 01-12-2005, 01:09 AM

I would love to find the SR uppers for $500 , would buy it in a heart beat. Where?

I never see the uppers for sale.

I have an Vortec with the hotcam, I'l sure a SR would open it up a little on top.

But did I miss something, or were all the TPI's that performed well extrude honed?

I have As&m runners, and a unported SDPC base. seems as if the extrude hone would be better than a home port, ( DOn't want to hurt anyone's pride) ( Also I have ported heads before , and know that there are alot of potential gains)

What I'm saying is they used an extrude hone and DFI, that has to factor in for something, and yes I know you can tune a car pretty close through the prom.

What I'm saying is they got those #'s with a maxed out TPI, with the highest $quality stuff.

sounds as if we give up alot by running unported equipment. sucks to do if your car runs well already ( tear everything down to port)

My runners and plenum are matched, I need a reason to pull my base and heads

gta324 · 01-12-2005, 01:10 AM

I have had a

- 10:1 383" heads and zz9 and TPIs big mouth and LTR, great torque but no fun over 5200rpm.

- switched to Superram, better combo if you ask me, pulled hard to 5600rpm

- Changed to 415cui and cc306 cam, Superram pulls to 5200 rpm, will change to HSR this spring and see whats happens....

Just my experiance.

/N.

OMINOUS_87 · 01-12-2005, 03:02 AM

Quote:

Originally posted by Kennerz

I have As&m runners, and a unported SDPC base. seems as if the extrude hone would be better than a home port, ( DOn't want to

sounds as if we give up alot by running unported equipment.

Your damn right you need to port your base.

I got that base, and it is the poorest flowing aftermarket base out of the box.

I put mad time into mine and removed a mad amount of material, I didnt think paying extrude hone would have got me anything more then what I did to it.

But in as cast condition, I would never consider running it on my car, thats how poor I think it is out of the box.

90_WS6_Formula · 01-12-2005, 04:54 AM

good job foolio

D's89IROCZ · 01-12-2005, 06:12 AM

Great article . I had to go out and get it . Thanx to Acceled Z for telling me where to get it up here.

I have a couple of Q's about these tests though . I have alwasy been under the impression that LTR setup's ( like the one I have) don;t see alot of high revs . SO why is a stock TPI makeing power to 6000 rpm ???? It destroys everything I have read ...or seen on a chasis dyno . What made it flow there ????

I love what they say about the Edlebrock unit ......"lot's more room for porting" SO remember that this was tested with a STOCK TB ...and STOCK plenum . The TPIS set up was a matched setup and the plenum was matched too also , they used a bigger TB . The ASM unit had a matched plenum and they tryed different TB's ..... try this with the edlebrock unit as well .....and then see if it's the baddest LTR setup . I think the edlebrock unit is

.....nothing personal here .

Orr89RocZ · 01-12-2005, 10:13 AM

yeah, superram system for 700 used. i havent seen just the uppers for anything less than what summit sells it for.

i was wondering the same thing about TPI pulling to 6000rpms. the power is flat from 5000 on pretty much. i thought it had to do with that cam cuz it is big. but the intake is on a 383 which should rev even less than 5000rpms. oh well, this seems to re write the books about TPI and those saying only low rpm breather. LOL

the edelbrock unit is nice for the price cuz it isnt ported out of the box. TPIS big mouth is. thats where the extra 100bucks is. lol, so edelbrock is good deal in that if you do porting yourself you can gain same flow characteristics. i seen before and after pics of a golf ball not fitting into the runner holes and after porting, the golf ball easily rolls in and out. so alot of room to do some serious work.

i am somewhat dissappointed that they didnt use SLP runners. they are very popular and cheap and i was curious to see how well they would do. they can be ported out really well and you should see similar numbers as in those tests.

CamarosRUS · 01-12-2005, 11:50 AM

this article is awesome!!! it just makes me feel even better since im running the trickflow 195's on my 383 (10.6:1 CR) with the HSR and a 58mm tb and a close enough cam 230/236 .544/.555 after my 1.6 rockers.
i now know im extremly close to my 500hp mark and with some head work i think the smaller cam will get me there. whats holding me back now is the 1 5/8 shorties im running...looks like 1 3/4 are in the midst.

they did run 1 3/4 primaries for the test didnt they????????

Red Devil · 01-12-2005, 12:34 PM

Looks like 2".

CamarosRUS · 01-12-2005, 12:41 PM

damn im way behind arent i

89gta383 · 01-13-2005, 12:20 AM

The stock tpi intake is not 'pulling' to 6000 rpm. Just because it flatlines after 4500 doesn't mean it is still 'pulling'. Pulling would imply that the car is 'pulling' harder, meaning going faster, and that is not happening if the intake is flatlining. The intake is restricting airflow when it flatlines.

Orr89RocZ · 01-13-2005, 12:26 AM

yeah but you would expect power to drop off drastically after 5000rpms with stock tpi like what the stock L98 does.

Acceld Z · 01-13-2005, 12:28 AM

Quote:

Originally posted by Red Devil
Looks like 2".

Don't you need adapter plates to run 1 7/8"+ headers? I know I did when my car had the Hedman 1 7/8" Husslers. It doesn't look like they're using any from the pics. Those tubes do look huge though.

Red Devil · 01-13-2005, 10:43 AM

Yes you do. In looking at it again, I think I may have mistook head material for an adapter. In one of the pics, they look to be about the same size as the AS&MTPIS large tubes. :shrug:

I guess that's our first question.

Orr89RocZ · 01-13-2005, 11:11 AM

they make 1 7/8's and 2 inch for camaro cars. its just when you go to big block sizes over 2inch that you need the adapter. thats what i thought.

the question is, can you squeeze that header into a thirdgen engine bay??

Twilightoptics · 01-13-2005, 07:40 PM

Quote:

Originally posted by Orr89RocZ
yeah but you would expect power to drop off drastically after 5000rpms with stock tpi like what the stock L98 does.

The stock L98 isn't a 383 with a cam sucking that air through. It seems as though with this engine, it's sucking enough air to increase RPM but not horsepower at those rpms. The engine combo itself is built to rev higher, but since the TPI wont allow the increase of CFM requirements to be fullfilled..... the curve... is flat.

86IROCNJ · 01-13-2005, 08:53 PM

Why isn't this a sticky yet? Pretty informative and no one is really getting off track with this. Good thread. Thanks for posting up the article OMINOUS_87 because I would have never found this magazine anywhere around here!

Tibo · 01-14-2005, 11:10 AM

Quote:

Originally posted by Acceld Z

AFAIC, the HSR is the winner as far as numbers:$. And i'm a SR guy, lol.

Actually I could make a single or dual plane efi intake for less than the HSR and it would flow as good as the HSR. HSR is good, but not as impressive as I could make one.

Jekyll & Hyde · 01-14-2005, 02:11 PM

I still don't know if I agree with HSR being the 'clear' winner on numbers alone. A peak number is as fast as a broader range. Not only that the cam was a little more biased to the SR and the HSR.

As with all of the studies have proven, the SR would have been a lot better with a flat pattern cam. The 219/219 cam was made for the SR, and in most cases is the best to use with the SR (depends on heads).

The AS&M with TPIS BM manifold would have been better with a 270 or 276 cam. It wouldn't have made the same numbers as the HSR, but I have seen broader power bands than what they got.

Acceld Z · 01-14-2005, 04:04 PM

Quote:

Originally posted by Tibo
Actually I could make a single or dual plane efi intake for less than the HSR and it would flow as good as the HSR. HSR is good, but not as impressive as I could make one.

That's great, you do that. It's just that your home made intake wasn't tested in this shoot-out

And as soon as you add one of the 4bbl style TBs the cost goes up significantly.

Acceld Z · 01-14-2005, 04:09 PM

Quote:

Originally posted by Maroon-IROC-Z
I still don't know if I agree with HSR being the 'clear' winner on numbers alone. A peak number is as fast as a broader range. Not only that the cam was a little more biased to the SR and the HSR.

As with all of the studies have proven, the SR would have been a lot better with a flat pattern cam. The 219/219 cam was made for the SR, and in most cases is the best to use with the SR (depends on heads).

The AS&M with TPIS BM manifold would have been better with a 270 or 276 cam. It wouldn't have made the same numbers as the HSR, but I have seen broader power bands than what they got.

Actually, I said that the HSR was the clear winner as far as numbers compared to $ is concerned. Christ, a set of runners is almost as expensive as the HSR.

The "219" cam was designed to work with LPE's CNDd L98 heads and the Super Ram. Those heads have an awesome I/E ratio. That's the same cam I have and I love it.

86IROCNJ · 01-14-2005, 04:42 PM

For the miniram guys, what cam do you think would work best with it to achieve maximum power out of a vortec headed 350? The one used in the test or something else? Currently I am using a Hot Cam and would like to get a larger cam in the coming months. I was looking into the XR288 or 282. Any info, insight, opinions, or experiences would help. Thanks