TWS

iTrader: (63)

Would like to hear from anyone who has actually sent their LTx intake out for Extrude Hone porting. What was your experience and what kind of gains did it bring?

I am NOT looking for opinions or "I heard about some guy once..." I would like to hear from the person who actually did it or if it was someone that you know very well and you know for sure what the results were.

Thanks in advance!

96capricemgr

iTrader: (1)

If you decide to try it with the LT4 manifold at least open the ports up to near the head port size first as the ports in the intake are a fair bit shorter height wise than the ports in the heads. Extrude hone can not fix that.

TWS

iTrader: (63)

^ Good point. Thanks! ^

Houdini

iTrader: (2)

I had a LT4 intake sent out to be extrude honed, but I cant tell you about any gains. I did the whole top-end (H/C/I) at the same time, so no back to back real world results. I can say this though... it looked really nice inside that intake!

Take a look at my sig for HP results.

Ray@Nitrous Outlet

TWS...forget the LTx breadbox, and go ahead and do a single plane conversion.

TWS

iTrader: (63)

Those are great numbers for a stock displacement LTx.

I would imagine that the Extrude Hone played a positive role.

Sending a PM.

TWS

iTrader: (63)

Ray, looks like you are preparing to blow my doors off at LTx.

I have thought and talked about doing a single plane. No time and $ to change my combo so radically before the shootout, but it is an option I might pursue later. I'll give you a call soon to see how you like yours. I'll probably get to experience it first hand from the other lane.

Ray@Nitrous Outlet

here is a vid from a buddies car that is running the same setup...this was just a 100 shot

http://youtube.com/watch?v=RuKiVh1WYbc

he went 10.96 @ 122 on motor.

Major Mods:
383cid, out of the box AFR 195's, 246/254 .6xx/.5xx Hydraulic roller, Edelbrock Vic-E, Nitrous Outlet Elbow, TH350, 12 bolt, 3.73, 28" tires, 3350# raceweight.

Only dyno'd 414rwhp through the TH350 and a 4000 stall

speed_demon24

iTrader: (6)

I would say save your $$ and have it ported instead, unless you are basically getting it done for free. I made the #'s in my sig with an unported intake so I'm not convinced the stock intake is a big restriction.

Tony Shepherd

iTrader: (4)

His intake is already ported. He has a 396 with good flowing heads. Intake may be a restriction for him.

TwoFast4Lv

iTrader: (8)

I can tell you from flow bench and dyno testing you will see bigger gains by adding Plenumn area with your porting. If the intake is truely the hold up it might be time for a Single plane. they are much cheaper then the wild intakes like some of us built.

TWS

iTrader: (63)

Exactly. Tony (fast93z) and I have discussed my setup at length. He is actually the primary person who helped me with the install, tune, etc. etc. etc. after picking the motor up from Port Pros. Anyway, point is, we both feel lack of plenum volume is a restriction. Big cam and good heads means the intake can't feed the cylinders fast enough due to lack of plenumn area. One of the Extrude Hone retailers advertises a 20-25% increase in plenum volume. This could be propaganda or it could be true. I'm trying to see if anyone has had some good results with a similar LTx motor to see if this is a valid option.

A single plane is probably in my future regardless. Just not in the near future.

T/A KID

iTrader: (12)

Should have bought mine along time ago then, lol.
I remember getting Tony to help me on mine back in the day, too bad I never got to use it.

slick1851

AI Offers porting look at there site and look at there customers cars dyno numbers

TWS

iTrader: (63)

That car leaves hard on the spray. Very nice.

I am real close to his motor times (me also on motor). If I could hook just a little better...

Ran an 11.15 @ 121.58 on a 1.57 60' last night on the very first pass. Then the track went away and I didn't hook for **** the rest of the night.

seawalkersee

I have a question about the single plane... How well does the single plane perform during normal street driving. I mean, doe it perform like a carbed intake and not have any nuts until you get the power going? Or since the blades are in a plenum and the injectors are donw low, does it work like a usual EFI setup.

I guess I want to know what level you need to achieve before you would want a single plane. I mean, LE#2 heads and cam at a minimum or what?

Chris

Ray@Nitrous Outlet

I see the single planes used more on large CID motors or cars that are wanting to run high RPMs.