Dynatek & Dean Lampe's RCR 40 in Kit Car Mag...again

[RodKnock]

The January 2009 issue of Kit Car has an article on Dean Lampe's change from his old Weber setup to a Dynatek EFI setup. The pictures show the Italian Weber side by side with the Dynatek setup and they look virtually the same, at least to me. If I remember correctly, the Dynatek setup was spun up to 7,500 RPM, but stopped making power at 7,100 RPM.

Now the summary of the HP variance:

Before (Webers): 508 HP at the flywheel.

After (Dynatek): 560 HP at the wheels.

That's amazing! Nice article Dean. Thanks.

[Great Asp]

What are the engine specs?

E

[RodKnock]

Eric, I don't know the specs, but we're talking a very high dollar SB based upon a block with a 8.7" deck height if I remember. Dean frequents the site, so maybe he could comment when he pops back in.

I'm just amazed that the EFI setup could make so much more power at high RPM's than a Weber setup. I also wanted to see a Weber carb carb side by side with a Dynatek stack so compare the difference and there really isn't any.

In the article, Dean did have a computer/dyno expert tweak his Dynatek setup with a laptop, but the Dynatek setup was pretty well setup right out of the box.

[Jac Mac]

IIRC Dean mentioned earlier that there was an issue with the software that was responsible for the 7100 RPM limit.

I do not see why you should be so amazed @ the extra HP, if you visualise the intake valve throat @ 46mm+ dia and then the 42mm chokes in each weber its not hard to 'see' where the restriction is at WOT.

[Buzzmobile]

you ought to hear the damn thing!

[WildBill3]

Dynatec was at RunNGun went over to ther booth great guys Aausome products, Dean aways goes first class!Up close and personal I couldnt tell the two systems apart.Neat stuff you shoulda been ther!!!WB3

[Jac Mac]

While I have listened to the sound on the video's etc they never do justice to being there in person, I have a couple of AVI clips of one car I work with here & they are nothing compared with being trackside when its @ 7600+ & that in turn was nothing compared with taking it for a lap myself san's crash helmet & giving the rev limiter a nudge in top gear.

[Great Asp]

Originally Posted by Jac Mac

While I have listened to the sound on the video's etc they never do justice to being there in person,

Sound like this?




E

[Jac Mac]

No, sounded lots better than that!!!!, 8 into 1 exhaust takes some beating! to say nothing about the beating it gives the ear drums-- but then some folk reckon I have had selective deafness for decades!

[Great Asp]

Originally Posted by Jac Mac

No, sounded lots better than that!!!!, 8 into 1 exhaust takes some beating! to say nothing about the beating it gives the ear drums-- but then some folk reckon I have had selective deafness for decades!

I didn't post the first vid of the engine before that pull.



How's it sound now???

E

[Jac Mac]

Sorry E, impressive as the numbers are, the sound at those 'low' stroker revs is not going to get my attention. You need to at least fit that unit in a MKIV with a set of 180° crossovers to make some real noise-- some would refer to it as more refined. . Im sure Fran @ RCR would be only to keen to help you out with the car--- no I'm not an agent for him, in fact he would probably want to kick my butt ahead of anyone else!!

However we are getting a bit sidetracked here- better leave these guys to it!

[dlampe]

The Dynatek stuff is real easy. I spent a little time on the phone, now I just plug in my laptop and make adjustments for the hell of it just to see what will happen! The comparison isn't apples to apples as I said in the article but I thought I had my Weber's set right like many of us do. Now my laptop will tell me exactly where I am at any point in the rpm range due to the built in data logger. I just can't tell you how impressed I am with this system and I am a weber guy!

My engine is an 8.7 deck aluminum dry sump small block at 11 to 1 roughly with Yates heads, Oliver ultra light rods, billet Scat crank, button dual disk clutch, titanium valve train with Jesel rockers. The cam is a solid roller with 248 dur and 660 lift at the valve with a 108 LSA. It Will run to 8000rpms but I usually just shift.

The Weber's matched the injection up to about 5000 rpms then the injection really kept climbing as the Weber's fell away. They just can't flow the air that the Yates heads need to make big power numbers.

[lovehamr]

Dean, what intake did you use to mate the webers to the yates heads? Did the Dynatek guys make an intake just for your app.?

Steve

[RodKnock]

I believe Dean had a custom intake made for his Weber setup, which he then modified for the Dynatek setup, but Dean correct me if I'm wrong.

[dlampe]

Yes it was a custom intake. There where no intakes around for an 8.7 deck Yates motor with Weber's. The name of the shop escapes me but it is a 3 piece design. The only modification I needed was a vacuum connection which most people might already have on a normal Weber intake. This system will bolt right to your IDA manifold and you can use your linkage and fuel lines. I already had a return line but I don't know if you need that or not. I switched the fuel pumps and the regulator. Everything else came in the kit from Dynatek. At this point, as bill said, you can't tell the difference. All my wires and lines are hidden under my turkey pan. The only way to know is if you notice the missing axillary venturis.

[Great Asp]

Dean,

Sounds like a VERY sick setup!

Any pics?

Vids?

E

[dlampe]

http://www.you tube.com/watch?v=acyex_ABKaw

Here is a you tube from my in car camera. The sound is not that clear, typical youtube, but you can get the idea. The faster laps are at the end so you can fast forward to the middle if get bored with it.

My alternator quit and by the end my electronics were starting to cut out. Other than that, the system is awesome!

[STL Mark]

I was there. He is crazy fast!

Here's the clip

http://www.youtube.com/watch?v=acyex_ABKaw

[WildBill3]

Mark you ran pretty stout out ther for your first time looking forward to seeing you and the other STL. guys next year be safe ...WB3

[carmine]

If the dynatek setup made 560HP at 7100 RPM, at what RPM did the weber setup make 508HP ?