Dale's Project bike on Holeshot's new DYNOJET dyno.
Regarding Dyno Numbers:
Before I get started I'd like to talk about Dynos and Dyno numbers. In my opinion the Dyno is just a tool to measure before and after results. The Dyno itself and the atmosphere conditions can change the horsepower numbers dramatically. For example, I had a few customers tell me that their B-12 made 122 to 126 horsepower with my pipe and Stage 2 jet kit on a Dyno Jet Dyno. If that same motorcycle ran on the Dyno jet that I use with the condition here, it would make 115-116 maximum. I also found that how and when you roll the throttle on during a pull can vary the horsepower up to 2 or 3.
Dyno Numbers on my 11.1 CR Piston Kit and Street Strip Portwork:
Before I tell you any numbers, I want to explain my objectives of the Stage 1 upgrade.
Cost Breakdown For Complete Stage 1 Power Upgrade
Holeshot slip-on $309.00 each Holeshot Stage 2 Jet Kit $248.00 each Holeshot +5° Advancer $42.00 each Holeshot/JE 11.1 CR Piston Kit $589.00 each Holeshot Street Strip Cylinder Headwork $650.00 each TOTAL COST $1838.00
We have now tested the GSX-R intake cam with the above combination and got an amazing 7-8 more horsepower for a total of 136.7 hp. For more info please go to the Bandit Cams an Adjustable Sprockets page.
New Holeshot Header Makes Big Power.
New Holeshot Holeshot Header: Dale has now prototyped and tested his new Holeshot Stepped front header system. The stepped primary tube combination is the secret. This design really made incredible gains across the board on Dale's project bike. It pulled 12 more peak horsepower and at 10,000 it was up an unreal 18 horsepower. Dale's standard bore Stage 1 project motor produced 148.2 hp with the new Holeshot header. It also broke 90 ft-lbs of torque on one pull at 7000 rpm.
The construction will be precision tig welded thin wall light weight mild steel. The new Holeshot Header will be sterling silver jet hot ceramic coated inside and out. This retains the heat in the pipe, increases flow, and eliminates corrosion and scaling inside the head pipes. We will offer a lifetime rust through warranty on our new header. It will mate to our current Holeshot Slip-on System or your original elbow pipe, so you can upgrade your current Slip-on system or purchase the Holeshot Header as a complete exhaust. We will also be offering a high pipe version in addition to our current design. Click here for photos and dyno numbers.
Dale recently tested his B-12 at Sacremento Drag strip. With yours truely at the controls the standard bore engine combo ripped out a 9.82 E.T. @ 138.18 mph. WOW. Click for Action Shots.
This should take care of most sport bikes, and run head to head with the birds of prey, if not beat them in the 1/4 mile.
Here's the exact numbers from Dale's time slip:
60 ft: 1.52 330 ft: 4.11 660 ft: 6.28 mph 660 ft: 113.50 990 ft: 8.18 E.T.: 9.82 mph: 138.18
New Holeshot/JE 1216cc Kit Now Available.
1216 cc Big Bore Kit: once Dale's satisfied with the power output of the standard bore set up it will be time to go BIG. After much thought 1216 cc's is Dale's choice. This can safely be bored in the stock cylinder sleeves and big bore head gaskets are readily available for this bore size. The key is Dale has developed his own dome design working with the JE Piston Co. The compression ratio is kept at a moderate 10.8:1, eliminating any overheating problems, will run on pump gas and offer very high reliability. This will produce around 150 horsepower with tons of mid-range , arm stretching grunt.
Dale's 1216 project motor is now together, broken in and dyno'ed. Click here for results.
It looks like 2000 and beyond is going to be very exciting for the Bandit and Holeshot Performance.
Boy, I better get to work.
photo: Kevin Wing
All Holeshot Performance Products are intended for closed course racing purposes only, never to be used on any road or highway anywhere in the world. Doing so is at the sole discretion of the buyer.
Holeshot Performance Products, Inc. & erg are trademarks of Holeshot Performance. Any other product names are the trademarks of their respective holders. All rights to use this publication are exclusively owned by, and proprietary to, Holeshot Performance Products, Inc. Copyright © 1998. All rights reserved. No part of this publication or web site may be reproduced or transmitted in any form or by any means, electronic or mechanical, without first obtaining written permission from the publisher.
© Copyright 1998 Holeshot Performance Products®, Inc. All Rights Reserved.