Performance

I have a CB engine(1915cc), but I think it has 130hp at most, and my car weighs 1700 lbs.  Still, it's pretty darned quick when the carbs are behaving.  I have a friend who had a mid-70s Vette, and I left him behind when pulling away, um, in a totally legal fashion from a stop light.

I wish I knew who built my 1015, Kirk didn't know!  He said around that time they stopped using one shop and started using another.  Are there any clues on the engine that might tell me?

 I take it it's a 1915? could be 80hp or 140hp. You'd have to take the heads off to see what they are (valve size and amount of porting) and pull the oil pump; most cam grinders write the grind on the flange beside where the oil pump drive goes. How high does it rev in 3rd gear with power? What carbs are on it?

Lane:

How did those 130 horses feel from your 1915 when both Carey and I pulled away from you (rapidly) from that light in Carlisle years back??

Seriously, though (yeah, you're gonna really believe this) most 1915's would have to work pretty hard to break 90hp at the crank, while a well-set-up 2,110 or larger can eat most American V-8's for breakfast (and do so, regularly).

160hp at the wheels?  That would be North of most 2,110's at their 140-ish hp......most likely a 2332.

Yes, 1915, sorry.

The rivets holding the gear came loose from the stock cam and so I replaced it with a mild cam.  The stock cam is long gone.  It had dual EMPI 40's and I replaced it with Dellorto DLRA 40's.

I never take it over 5000 in any gear, but it has good power to that point.

My supposedly 175hp rating was able to keep up pretty well with Stan's supposedly 200hp rating this past June in Peoria. But then again, Stan was just toying with me. I wish I could push the seat-of-your-pants-button-feel on You Tube videos: http://www.youtube.com/watch?v...=11&feature=plcp

I might add, this video was far from an all out run in this car. My cars handling, at this stage of development of the car, is quickly over taken by the power of the engine. In other words, I drive it with caution.

Rich, your Power to weight ratio is very high.  My water pumper has as a ton of low end and linear torque but it eventually flat lines.  I have room in the Intermeccanica for more power if ever desired in the future.  The suspension  set up and tranny can handle it.  Your car would pull away from mine in a straight line eventually.  The IM weights 2375.      

I'm not racing anyone. Just enjoying the kick in the pants feel every once in awhile.

It's all so very personal.

Me either Rich, just making a point that the low weight and high HP wins

My new (now apart) 2276 pulled 123 wheel HP on a Mustang dyno (figure around 140 crank HP).  To put that into a real world perspective, while driving with my friend, who drives a 1992 Miata (1600cc, with a supercharger) we both booted it going up a long hill.  I was able to pull on him, slightly, but all-in-all we were pretty evenly matched.

When my engine gets back together it will have new, larger heads (Greg Tims stage 2), which should give the car a noticeable HP boost.

If the power peaks at about 5000 rpm (in 1st and 2nd gear it will rev higher easily but in 3rd you should definitely feel it "peak") the motor will probably be making around 90 or 95 hp. Can Kirk tell you if the heads are ported? valve sizes? Do you know what cam you put in it? Depending on the details you could see some more power from adding higher ratio rockers- another 5-10 hp is always fun!

 Ron- When it's right it will go to 6500 with power and give you another 40-45 hp. It will be quite the change! Set the  deck height as close to .040" as possible to keep quench and lessen heat transfer to the piston tops (any thing under about .060" will be good). 9.25:1 compression shouldn't give any problems.

I have a Raby 1915 and here is dyno output I received from Beck. It has plenty of low end power in 1-3 and cruises very well in 4^th (3:88) on the highway.

Interesting you should bring that up...

The initial tear-down report from Art indicates that all was not as advertised in Stan's engine bay. My cam was going flat, and one of the Chinese nickasil cylinders was starting to split. While my engine may have made 200 hp on an Orange County dyno for one shining moment in time, it wasn't likely making anywhere close to that in June. I suspect "Oscar" will make a legit 175 hp for many miles to come.

The new improved version of my Type 1 will have no gaudy numbers, but I have no doubt the engine will be much more streetable and much more long-lived than what I had going this time around the horn.

Some people learn quickly. Other people just keep writing checks.

Stan, the trouble with experimenting with these cars is more often than not our good ideas turn out to be not-so-good.  I've been down that road more than a few times, and if I totaled what I put in my IM the first time I owned it and its rebirth, I'd probably have enough to buy a brand new Boxster S. But what fun would that have been?  I need to work on my cars and I'd be deathly afraid to mess with a new Porsche.

This weekend I'm starting to frame in the space for my front oil cooler.  This is going to be one of those good idea or bad idea projects.  Unfortunately, I won't know until I try it. 

Stan's my hero and I'll always be in his rear mirror, except for that one time when he and Cory decided to stop and look at the windmills...that particular moment almost had me right up his very cool exhaust and still in the rear. You would of had to be there to understand.

 My speedster has a 2110 Chico built motor and is putting out 140+hp,and I regularly rev it to 6200+ rpms,it is balanced and literally runs "perfectly". I have jetted it using a wideband,and I do have to say it is very QUICK,from a dig at a stop light I can leave a lot of cars behind due to teh fact that it weighs only 1680 lbs.,but since it has lower profile tires than usual the gearing is very low so that adds to the quickness,but I would not say these are "fast"...for example,on a "roll" it does feel perky but not fast,but from a stop....it is fun as hell and the best place for these cars IMO is a bunch of tight,slow corners where you can use the tq. and have some fun.

 I have built/tuned/owned 500+ bhp Street water cooled turbo VW's which trap 120+mph in the 1/4 mile,these are FAST,but these cars are more FUN 99% off the time because you can mash the gas and not be breaking every law in the book and going 100+mph.  

 A strong 2110 IMO is great for these crs,I really wouldn't want 300+bhp in a car like this,the chassis dynamics are very lacking.  

Sounds like a blast to drive no matter what! I think I would get in trouble if a had a screamer  2110 like that. Fun, but too tempting to mash the pedal at every chance...ask me how I know.