Rat Raceway

iTrader: (11)

Hello All

I'm very colse to finishing up my 396 TL4. I will be running an F1 procharger and have now come to the TB. I have been looking at the BBK 58mm and was very close to picking one up when I saw the AS&M Monoblade...
http://www.azspeed.com/58mmmothbo.html

I have done a search on this and have found very few post on the Mono. I did see you do have to hack the heck out the the intake remove the center to fit the mono. My question is... Is the Monoblade worth it??? I have a new LT4 intake ready to go on and needs to be ported for a 58TB anyway. Is the AS&M worth the extra cash??? And is it worth tearing up the new LT4 intake???
I'm in Denver Colorado so air is thin and we need EVERYTHING WE CAN GET!

Anyone out there that can help???


Thanks
Ross

lt1camaro95

TPIS would only sell the monoblade after they were told you have a big motor. The monoblade is too much for just a 350. But since you have a 396 and a blower, then this should be great, but I am sure you will have problems getting it tuned without idling too high.

-PEPE-

iTrader: (10)

Definitely worth it, have it, no tune issues, didn't idle high or anything, but FYI it's also worth modifying your LT4 intake to match your ported heads (assuming you have them) to work in conjunction with an ASM mono. I had my LT4 intake max ported to work better with the the ported AFR heads. On a side note I'm having a custom SuperVic built and was advised by Aaron @intakeelbows that I should first try my new ASM mono vs switching to a Wilson elbow/AccuFab 90mm because I would be gaining really no more with the Accu, so that saves me about $550 right there. I'm going to try it, if I like it's results then I'll stick with the ASM.

TwoFast4Lv

iTrader: (8)

With the blower I would stick with the 58mm.

-PEPE-

iTrader: (10)

Educate us ObiOne...why? Get technical bro...I'm curious.

lt197formula

iTrader: (6)

Another vote for the 58mm Monoblade.

Edit: Just saw that TwoFast4Lv said stick with the 58mm hmm I'd like to know why also

Brett if you happen to decide on switching from the Monoblade to the AccuFab let me know I would be interested in taking it off your hands.

streetwarrior96

You got the $$$$ Mono Blade

-PEPE-

iTrader: (10)

Ok you'll have to remind me if I ever post it...cuz I'll forget I'm like 88 yrs old n stuff...anywho I have it promised to a friend along with the LT4 intake which he wants really bad when I convert to the SuperVic.

lt197formula

iTrader: (6)

Well damn him...anyway pm replied to.

Edit: Well **** that's some pretty damn good driving skills and reactions you have for being 88 years old and all haha.

Fire67

iTrader: (3)

The AS&M monoblade is a very nice piece, and several people on here are running it. I personally am running a Holley 58mm on my 383.

The monoblade is the most expensive of all the TB's available... But def. one of the nicest Ive seen.

FWIW, with larger than stock displacement, heads, and cam, along with an aftermarket TB, your gonna have to do some adjustements to the TB to get it to allow proper TPS and IAC counts. Therefore, it will have idle issues untill the proper adjustments are made.

The Big Show

iTrader: (2)

Because if your using a blower, your pressurizing the 'show' anyway so there's no need for the biggest baddest tb you can put in there; not to mention you can't get enough cubes out of an LT1 to even utilize more than a 58mm...

LT1MAN

iTrader: (6)

damn, i could not find a monoblade anywhere when i was tb shopping. i would have got the mono for sure.

lt197formula

iTrader: (6)

http://www.thunderracing.com/catalog...vid=4&pcid=180

-PEPE-

iTrader: (10)

First 1/2 makes sense, second 1/2 I've heard debate about over and over before and I'll just leave it at that, but the majority of race engine builders out there seem to think otherwise.

z28hustle

how much of an advantage does the monoblade have? if any? and who cares to spend the extra money?!

The Big Show

iTrader: (2)

The real point is cost. It's not necessarily going to be any better than the 58mm so for the cost it's not the smartest purchase...

As far as debates, there's really nothing to debate. Since your only moving air, and an engine is in fact nothing more than a glorified air pump, your engine is only going to 'efficiently' make use of the amount of air it can injest. If you have a 2000 cfm tb and your heads only move "x" amount of air, than what are you really accomplishing?

Rat Raceway

iTrader: (11)

TwoFast4Lv are you saying to stay with the twin (BBK) 58mm or the Monoblade (AS&M) 58mm? They are both 58mm.

Thanks for all the great input guys!!!

Ross

-PEPE-

iTrader: (10)

Again, I agree, thats why the more your heads flow the more use you'll get from a 58 much less a mono along with a stroked engine. But I couldn't agree more with you about the cost, they are expensive but with my going to a SuperVic in 3 weeks knowing I was going to do this during the engine build it was cost effective for me. I "had" to buy a TB when I built the engine, my old 58mm was a temp loaner so the mono made sense

-PEPE-

iTrader: (10)

Know you're asking Ross but 58 is 58, Edel makes a good product and less expensive, I think Summit even has a 58 now that's price competitive.

FASTFATBOY

iTrader: (23)

Anything you put in front of the head that causes ANY restriction lowers the flow over the whole intake tract, it is not as simple as you say it is. I am building a solid roller 383, Pro Action (RHS) 235's a super vic and a sheetmetal elbow from intakeelbows.com with a Mono blade, anything you can do to lessen the restriction will make power.

Engine Masters Mag did a test with a carb on a 383, from a 650 to a 1200 cfm Dominator on a engine dyno, it made more power with each move upward in cfm, with little or no drawback, know why? Made the heads and intake tract more effecient.

The whole idea is to keep the plenum full, IMO a Monobalde will help on a engine that can utilize it.


David