Quite interesting, that converging 'V' pattern must create real turbulence in the center of the chamber. I think something similar in the wider exhaust squish-pad of our Opel DOHC heads would be a good idea. I believe when the squish area gets this large it becomes important to fully evacuate any l...

Hi all, Here's a few pictures from my current projects. Cheers, AB These SBF Edelbrock performer RPMs are ready for a FI 351 Windsor Lightning pick up. I don’t have all of the details, small cam, 10:1 compression street strip effort. http://members.cox.net/dnaquin/blake%20edelbrock.jpg *************...

One thing to consider, when the piston for the pent roof design
is domed, that dome can be used in conjunction with a groove
to direct squish flow into the area of the spark plug.

mmmm ese aceite sale limpio limpio, me recuerdo el de mi XE que salio negro y lleno de virutas con solo 50km jajajjjajaa Exacto. Habiendo hecho ambos lo mismo (honing DIY con el mismo apero + segmentos nuevos + rodaje agresivo) el tuyo esta negro a los 50 km; el mío limpio a los 150. La única varia...

Follows an explanation for the benefit of the local audience on your experiences with piston clearance pre and post grooves) With testing I am confident that I am able to reduce detonation tendencies with grooves and a wide piston to head clearance (1.2mm – 1.5mm at engine assembly). The objective ...

1969 FORD MUSTANG BOSS 429 FASTBACK Color: ROYAL MAROON Transmission: 4 SPEED Cylinders: V8 Engine Size: 429 Horsepower: 375 SOLD FOR $194,400 http://www.barrett-jackson.com/auctionresults/common/cardetail.asp?id=179182 http://www.barrett-jackson.com/auctionresults/common/collector.asp?year=1969&...

Every year the price people are willing to pay for a restored pony car continues to rise. Read about the Barrett-Jackson Auction Company and this pristine 1969 Ford Mustang Boss 429 Fastback, my favorite pony car. http://www.barrett-jackson.com/carlist/cardetails.asp?In_AuctionID=221&In_LotNumbe...

gzero escribió:What kind of fuel is common to use on this races?

It is common to use a special formula heavy leaded racing fuel to allow raising compression ratios to 13:1 or higher. This fuel comes at a huge cost, two to three times as much as regular unleaded fuel used in street driven vehicles.

The 350 Chevrolet engine in my Camaro is a SI gasoline engine, the spark plug location is hidden with the camera angle. That picture has been the subject of many questions as indicated by Telvm. Here’s another angle of the same cylinder head, this one shows how I was testing close piston to dead cle...

I am deeply moved by your words of gratitude, site administrator Tropic. And it is with a profound sense of modesty that I accept the honor that you have chosen to present to me. I am very happy to be here on this last day of 2006. I feel honored, humbled and deeply moved that you grant this status ...

I used an auto translator to decipher this quote, I hope it makes sense. Motores de la ignición de la chispa (SI) todo el trabajo sobre el principio de un frente de llama turbulento (TFF) que consume la carga del aire-combustible. Un acontecimiento normal de la combustión sería considerado uno donde...

Telvm gives good advice; to the best of my knowledge, no more can be done with the pent roof chamber.

... what puzzles me now is how these beasts don't simply take off and go airborne Some people like to take things to extreme levels, and the result is something like this. http://s123.photobucket.com/albums/o287/MaxRaceSoftware/?action=view&current=Jay_Leto_WheelStand.flv http://s123.photobucke...

I favor the early Camaros of the late 60s, the 1967 shown has been in my garage for 25 years. It is powered by a 475 HP 355 CI small block with a three speed automatic transmission. All of the necessary equipment has been retained to maintain street legal status. http://members.cox.net/dwynne7/67%20...

(Parece ser Rallye que el 351 Cleveland es un motor diferente del 351 Windsor del que nos habla Mr. Naquin) Yes the Cleveland and the Windsor are two very different engines. In the early days the Windsor was not considered a high performance engine, the aftermarket has developed heads for them that...

The 66 Mustang shown belongs to Glenn Elleser.

The engine is a Ford 351C.I. Windsor fitted with dome pistons N/A. The cylinder heads are CNC ported from AFR, grooved by me. The camshaft is from comp cams, duration at 0.050” is 255/266, lift at valve 0.576”. Automatic transmission is a Ford C4.

Chevrolet installed 350 C.I. engines in most cars and truck beginning in 1969 until the late 1990’s when the Gen III was introduced. The 355 is production block bored 0.030” oversize. We race the automatic transmissions exclusively, with modifications for racing. The 66 Mustang shown uses a trans br...

really incredible numbers!! amazing job, what engine mouts this beast? Small block Chevrolet 355 cubic inch displacement, 13:1 compression ratio; N/A. Camshaft from "Bullet Racing Cams" with ~270 degrees duration measured @ 0.050" lift. Total lift at valve 0.640”, RPM range 5000 - 78...

Here is one of the cars that I am currently involved with. It's a late 80's Camaro with a 355 C.I. SBC and a T350 transmission. Last time out the weather was good and the car was working great, here are the times it ran. It's important for people to understand I am not claming the grooves are the on...

Hi all, Randy Naquin here from New Orleans Louisiana, USA. I have been using the grooved cylinder head modification for more than two years with great success. My work has been primarily on American wedge head V8 engines used for ¼ mile drag racing. The claimed increase in low RPM torque and stable ...