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Titan 1.5 roller rocker arms

Gundy said:
regularman said:
That is one long shifter handle on that gearbox beside the motor hap. You going to mount that one up to the engine? Very nice rocker arms, you need a lexan valve cover on that head to see those purple rockers working. Good looking work on everything Hap.

Our friend Alan is building the motor, with some advice
and assistance from Hap.
Alan did send me a pic a while back with a clear glass casserole
dish as a valve cover as a spoof. Wish I'd saved it.
I fell for the gag and asked where in the heck did he find a clear valve cover.
I don't think that shifter is going into his Bugeye.
:jester:
Alan is the guy with the Cat7, right? How many little British cars has he got? Hap told me he had a Bugeye, is he redoing that?
 
regularman said:
Gundy said:
regularman said:
That is one long shifter handle on that gearbox beside the motor hap. You going to mount that one up to the engine? Very nice rocker arms, you need a lexan valve cover on that head to see those purple rockers working. Good looking work on everything Hap.

Our friend Alan is building the motor, with some advice
and assistance from Hap.
Alan did send me a pic a while back with a clear glass casserole
dish as a valve cover as a spoof. Wish I'd saved it.
I fell for the gag and asked where in the heck did he find a clear valve cover.
I don't think that shifter is going into his Bugeye.
:jester:
Alan is the guy with the Cat7, right? How many little British cars has he got? Hap told me he had a Bugeye, is he redoing that?

Alan has thinned his herd over the years. He had a Lotus Europa at one point. His TR4 was sweet. He built a screamin Mini Cooper too.
Now he's down to the Caterham 7 and is restoring his Bugeye he's had for at least 30 years.
This 1380 motor is going into the Bugeye.
This engine makes my 1380 with GT7 head, headers, alloy flywheel, 10-1 compression, twin HS4s etc. look dang near stock.
Coupled with a Datsun 5 speed it should be quite a performer.
He's going to use a 45 DCOE Weber for fuel supply I think.
 
Hap Waldrop said:
Kim, tell them, they need all the HP thay can get to keep up with us. :smile: :smile:

Well that and a willingness to throw caution to the wind.
Some guys can beat you with their cars, then switch cars
and beat you with YOUR car.
I do think I could take Hap in an ego race however.
:devilgrin:
 
Here is the finished head's combustion end.
All shiny and purdy.
grin.gif
 

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Yep, this mod was not by desgin, the angle cuts around the combustion chamber were to buy him more CC volume in his head to get his compression ratio back down. Now mind you, I'm not picking on our buddy, all of us have gotten ourselves in "tail chasing" situactions before, myself included. Here's the biggest piece of advice I could give any of you playing with short deck height and head decking to this point to raise compression ratio, measure, remeasure, remeasure again, then measure another time to be darn sure. Also what I do on my perofrmance build is complete the cylinder head, just less of fully assembling, than after I've got my block done, and my deck height confirmed, then and only then do I fiquire out how much to deck off the head.

Our buddy got into trouble doing a zero deck block by not measuring at the piston pin axis, that is the only place you can trust, anywhere else would have piston rock and askew your measurments. I don't suggest a zero deck height for almost all engines, if for no other reason the few thousands of inch difference in rod and piston length, then piston top machining will be the only course of action to correct, and if you have dish piston, this may mean even more piston machining to get the dish CC back, I don't even do zero deck on most of the race engines anymore , becsuse it will lead to alot of unecessary extra machining, shooting for a .005" deck height is much safer route, and you can still get to your target CR with head decking.

These days I spend more time fiquiring out how to get to the results I want by the most simple means I can do it. I've been exaclty where our buddy had with this engine and I'm sure he would approach this differently if he does it again. He's built several engines in his life, and this one was probably the most advanced one, and we learn from our experiences, every hurdle had been over come with extra machine work, and this is going to be one trick engine
that should work well, but this is not lesson in what to do, but more how to overcome whan things goes wrong. He's not alone any of us that have pushed the limits have been there, I recnetly had a machinist screw up the decking of a MGB race block and had to a buttload of piston maching to overcome it, and even thought this time it was the machinist fault, it has been my fault before as well. Our buddy did a good job of finally catching his tail and now is a member of the club :smile:
 
Heck Hap it's all Greek to me. I just thought it was purdy.
I'm a firm believer in letting Pros handle stuff I don't understand.
Heck I've been a trial lawyer for over 30 years but still have my own tax attorney.
I often tell people the hardest thing to learn is to say "I don't know". I've found that such honesty is always the best policy and helps keep me out of trouble.
I have put an engine or two together in my time but this custom
stuff you guys do blows my mind.
All I know is my 1380 screams and I like that. Now when and if she blows....I'll call a Pro.
:devilgrin:
 
Well, I learned in our buddy's build as well, all this stuff that started this thread was based on pretty big R&D project Sean Brown at Flowspeed did on MGB roller rocker arms. When Alan came to me questioning why he was losing so much lift over what he thought his lift was supposed to be, I explained to him, losing ratio thru the arc of the rocker arm and higher lift cams even aggrivates it more, but the more I thought about Sean's work with the MGB Titan roller rocker arms made me think if the 1275 set up suffered form the same theory of shaft center line being too low, and it sure looked that way form Alan's photo. SO isuggested Alan use a temporary shim to see if he got more lift to test theory, and va~la we hit pay dirt. Now who's knos how long it may have been before I built another 1275 engine with Titan 1.5 roller rocker arm, but thru Alan's project a theory became reality, and I can tell you firsthand I seen some pretty smart racers and engine builders overlook this, myself included. So in short, I too have learned alot thru Alan's engine build.
 
Hap, are you related to Smokey? a great uncle of yours or somethin'.. Sounds like you use logic to think things through. One of the things I admired on reading Smokey's columns...
 
LOL, funny you should ask that. My dad raced and crewed in the beginning days of Nascar, was at the Central Cafe when Bill France told all the drivers of his plan to create Nascar. They went on to race in the new stock car divison, after being Dixie League modified champs. They raced Hudson Hornets, with Leonard Tippett as a driver, won a few Nascar stock car races in 1950-51. My dad complained about Smokey's and Teagues factory backed Hornets have a special factory twin carb set up, that was deemed legal, but always backordered at the dealership. finally the Hudson race director handed them one of those twin carb set ups at the track one night, and inked out a factory support deal with Tippett. Back then it didn't matter what car you started in, it was what car you finished in. Part of the support deal was if Smokey's cars quit and Tippett was still on track, Smokey would wave Tippett in and let one of Smokey's drivers take over the car for the finish for points sake, and Tippet would get paid by Hudson whatever the winning purse was that night. So Smokey and dad became friends.

Dad later on became sucessful in the lease car business, and had several car carriers on the road , many times making trip thru Florida, Smokey's Garage worked on everything, big trucks, helicopter, race cars, you name it, so if one of dads truck broke down in central Florida, Smokey would send after it and get it fixed for him, he had a ton of folks working for them back then. When we go to Daytona speedweeks when I was just a pup of 6-7 years old we go by and visit Smokey, I remember his own shop, (there were several buldings on the prmises then) being like a maze, and running around that place with Smokey dogs like a wild Indian, lord knows what my young eyes was gandering at. I last saw Smokey in the early mid 90s, at a trade show during Speedweeks, he was sitting at a Champion Spark Plug vendor area, signing pictures. Now in my 30s, I waited my turn to get to him, belive it or not, it was not big line, I think most folks sadly didn't know who he was. When I got to him, I told him who I was and who my dad was, he grinned from ear to ear, he said I got something for you to take back to Fat (Fat was my dad's nickname), he grabbed one of the pictures of him with the Champion logos on it and signed it, " Hey Fat man, kiss my XXX, Smokey :smile: When my dad passed, we could never find that photo, I would give anything to have it back.

So to answer your question I was way too young to be able to ever get to talk to Smokey about tech, not that he would have been too interested in my Brit car love affair, but like you, I read all his columns in Stock Car Racing and absolutely loved his common sense approach to stuff. He definately is a legend in my book, and consider what you said as the highest of compliments, thank you ! I'm just a knuckle head who loves these silly cars, but I try to make them better.

Curious, ever heard the Smokey and Fireball goat, junkyard story, probably BS, but what a great story. :smile:
 
Hap Waldrop said:
<big snip>

Curious, ever heard the Smokey and Fireball goat, junkyard story, probably BS, but what a great story. :smile:

I have to hear this one! Just your teaser has all the elements for a good 'un!
 
Wanted to do some reading on roller rockers and found this thread, and figured it deserved seeing the light of day again.
I did an on-line search for roller rockers and prices and such (I`m buying an engine from a 78 year old Irishman that ran a British car shop here until a bad stroke hit him a few years back and I ran into him again a couple of months back at a building supply place; he has a pretty complete stock of everything from his old shop, including a roller rocker setup that I`m not getting as his cost back in the day was close to a grand) and I was confused by the prices showing up on the Internet plus the Titan brand name.
Phoned California Titan this morning and - sure enough - they do Chrysler and Toyota hemis, but aren`t the guys that Hap was using. He did mention that he sells adjusting screws to guys with the UK Titan roller kits as they are the same thread and some folks like his better. And I remember reading about Smokey Yunick. Doug
 
Wanted to do some reading on roller rockers and found this thread, and figured it deserved seeing the light of day again.
I did an on-line search for roller rockers and prices and such (I`m buying an engine from a 78 year old Irishman that ran a British car shop here until a bad stroke hit him a few years back and I ran into him again a couple of months back at a building supply place; he has a pretty complete stock of everything from his old shop, including a roller rocker setup that I`m not getting as his cost back in the day was close to a grand) and I was confused by the prices showing up on the Internet plus the Titan brand name.
Phoned California Titan this morning and - sure enough - they do Chrysler and Toyota hemis, but aren`t the guys that Hap was using. He did mention that he sells adjusting screws to guys with the UK Titan roller kits as they are the same thread and some folks like his better. And I remember reading about Smokey Yunick. Doug
,

I would recommend buying the 1.5 roller rocker arms Mini Spares sells, they refer to them as roller tip, meaning they are bushed at the shaft, which is fine and what most of us run anyway. Also look close at the 1.5 ratio non roller rocker arms, not a glamorous as the roller but the ratio is what you are after and they are quite the bargain.
 
Very interesting and applicable to my mini 1380. I have a 286 cam with roller rockers, but I think the rollers are a cheap version and I did not actually measure the lift. Next time I have the valve cover off, I am going to look at the push rods and see if they are centered in the hole, and other things mentioned above. Thanks for the education.
Jerry
 
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