Zach@MTI

iTrader: (3)

Here at MTI our cylinder head department has been working extensively with the L92 casting heads with stock valves to come up with an inexpensive cylinder head for big cube motors. More emphasis was put into the R&D on the exhaust port and the results we were pleased with.

Intake Runner Size: ~278

Soon we will be testing before/after results on a 427.

Here are the preliminary before and after flow numbers of what you would get with the new MTI L92 Cylinder Heads.





Package price for assembled heads/complete L76 Intake coming soon!!

Price for the pair of assembled MTI L92 heads coming soon!

Thanks,

Zach White
Sales Manager
Motorsport Technologies, Inc
281-870-8787

Billiumss

iTrader: (11)

Interesting, can't wait to see the before and after dynos and prices

DrkPhx

iTrader: (15)

Good to hear MTI is doing the L92 heads. Nice results. Have you flowed them with the L76 intake yet?

Beaflag VonRathburg

iTrader: (176)

Wow, it was pretty crazy to see it jump close to 18 cfm at .300, 20 cfm at .400, then close to 30 cfm at .500.

BIG BAD BLACKSS

iTrader: (4)

Im still worried about the low exaust flow #s in comparison to the intake. Will a bigger exaust lobe make up for it?

Also would this be a good choice for a blower application? Again that exaust flow scares me compared to aftermarket castings.

NVR4GET

iTrader: (3)

Interesting, I wonder who is going to try out these heads. Cant wait to see the results.

machinistone

Looks good - about 10% increase in int/exh ratio.

Would love to see the results with a mild street cam in the 22x range.

01zbear

iTrader: (1)

Tesas speed is selling ported L92's for 1299.00 with out springs. Hope you have a competetive price cause I'm in the market!

PREDATOR-Z

just use bigger splits, anyways the aftermarket cams on these heads are all still in their infancy, most are shots in the dark, it is slowly becoming clearer as to what works better than other.

Stang's Bane

iTrader: (22)

Not a apples to apples comaparison.

Superjoe

iTrader: (2)

Huh? Ported L92's vs. Ported L92's?

Not trying to be a smartass.

Stang's Bane

iTrader: (22)

MTI vs TSP. They exist on different ends of the aftermarket spectrum. That is all I will say about it.

WizeAss

iTrader: (5)

Zach, a local Houston porter was able to get some crazy numbers by swapping the 2.165 intake valve to a 2.125 valve while moving the exhaust valve to a 1.60. 300cfm at .400 lift on the intake.


here are the flow numbers:

Stock it flowed 317/218 @ .600

After porting:
238@ .300 intake
297@ .400 intake
360@ .600 intake

257@ .600 exhaust
Have you ported a set with smaller valves. I believe the seat will allow you to do so. the valve has alot of overlap. Good number nonetheless. Also.... why enlarge the runners so much. Are they not 260 as cast?

Zach@MTI

iTrader: (3)

Thanks for the interest guys. I believe this will be a promising head for the big motors that we build, I can't wait to see some back to back testing here in house. Like mentioned before these are preliminary numbers with the stock valves, this also keeps cost down on the cylinder head which puts money back in your pocket. We are working on different valve variations at the moment. More Info and Pictures on the way!!


Test cams have already been made for this setup.

Zach

SideStep

OK,

I will on this one...

Zach@MTI

iTrader: (3)

Like mentioned above, these are preliminary tests. Now we know what the port will do and in under the port size of other ported versions offered. So now we can focus on shrinking the port size without adversly affecting flow.

BADSZ28

iTrader: (39)

Subscribing. Will be in the market soon for a budget set-up.

I am looking for a package of assembled L92s and L76 with cable 90mm TB for under 2k. A package that will bolt up to a 6.0. A matching cam would be nice too. I think SLPs package is a little pricey.