Messages

16

Your Builds / Photo Gallery / Re: Sand drag pics 'n videos

« on: June 10, 2014, 03:28:27 PM »

Went to the track on Saturday, can you believe it was the first race of the year !!! being stuck here at 66°N sucks for racing.

Well anyhow, played it safe, mild timing, low rpm shift, no nitrous and had the time of my life.

Car weighed 1850 with me in it and full ballast.  It was happy with 5.25 psi in the rear. started lower but walked over the tire. the sissy stick was about 3.5-4" in the air.
Went 5.910 @ 113.35 in the eighth with a 1.275 60foot. Had a little shake in the front end on the first pass and increased the caster some and got rid of it.

 The altered car pictured hit the red, so I got a free pass into the semi's.

 More and bigger pictures of the race are here: https://www.flickr.com/photos/bb-kristinsson/sets/72157645064574505/


 
 

17

Bikes / Two different builds

« on: June 03, 2014, 01:41:07 PM »

You'll never know, these four photos might inspire someone to build something stupid...

 1st is a dragbike I built for a friend of mine, it uses three 700cc two stroke snowmobile engines,built for nitrous, each just over 100hp without the spray.

 2nd is a v8 bike I built for street use, running an aluminium 215 Buick and a Harley 5speed. Got sold off before I got to run it, but I'm getting the itch to build another one.

18

Six Cylinder Drag Vehicles / Re: Where are you guys? 6 cly folks

« on: May 12, 2014, 05:36:39 PM »

Thanks Old. This is just the example I was looking for.

19

Matt Shaff's Engine Shop / Piston ring end gap

« on: May 11, 2014, 09:54:02 AM »

I never use less gap for second, I suggest you dont either.
 Second ring is not for compression sealing, its only purpose is keeping oil from the top ring.
If there is less gap on second, pressure will build up between the rings from the microscopic leak from the top ring. This pressure will lift the top ring off its lower seat in the piston and cause it to flutter and lose seal.

20

Your Builds / Photo Gallery / Re: How to make a FED

« on: May 02, 2014, 04:29:46 PM »

I am contemplating on building a front wing for this sole purpose. Once have but be dammned if i lose another race becouse of no overhang

21

Six Cylinder Drag Vehicles / Re: Where are you guys? 6 cly folks

« on: April 29, 2014, 10:50:32 AM »

Well, we often joke about how the 6cyl guys are always missing two...

 I am trying to put together a class at my local track, similar to the H.A.M.B. altered dragsters.  An affordable way to get into dragracing using something you built yourself. I want to open up the engine rules a bit, so parts can be more available concidering the used parts market here in Iceland. I am looking forward to see some BMW's, Benz and Jeep inline sixes.

22

Matt Shaff's Engine Shop / Re: Fuel Pump

« on: April 28, 2014, 08:53:50 AM »

I run two 140gph pumps. One for motor, one for nitrous. Its perhaps 900hp on the spray. With the tank up front pump requirements change drastically

23

Front Engine Dragsters / Re: What is everyone using for as a gear ratio

« on: April 23, 2014, 11:30:35 AM »

I run 5.43:1
32" tires for the strip and 34.5" in the sand.
I rev the snot out of it.

24

Front Engine Dragsters / Zoomie Header Size

« on: April 16, 2014, 04:10:03 PM »

Last time out It took an 80 jet on the first kit and 72 on second. Both big shot plates. Second kit came in on the shift.

25

Front Engine Dragsters / Zoomie Header Size

« on: April 16, 2014, 03:15:57 AM »

Mine are stepped from 1.3/4 to 2"  and have the shape of funny car zoomies.
Stepped are about 2" in length and the pipes are 28-30" long
You can see where the blue heat mark ends, no idea if that is good or bad. It did not noticably change going from N/A to nitrous.

26

Roo Man's Room / Re: At what speed should you consider adding canard wings to a FED

« on: April 15, 2014, 02:17:05 PM »

Any tips on building/attaching the wings?

27

Altereds / Re: TIRE PRESSURE

« on: April 15, 2014, 02:03:51 PM »

I'd start at 5pounds first, and lower it half a pound the next run and see how it reacts.
Get a big gauge where you can see the pounds in atleast 1/4 psi increments.
Never mind the E.T. It runs what it runs. Just have fun and try to bring the car home in one piece.

28

Matt Shaff's Engine Shop / Oil tank

« on: March 28, 2014, 10:12:51 AM »

Well my job is done in this department, I'm pretty happy with how it turned out. Thanks everybody.

29

Roo Man's Room / Re: Oil breather tubes on rear of cage

« on: February 06, 2014, 01:42:57 AM »

Thanks guys. I like the idea of using a bend. Tank is tacked up, I'll post pictures when its done.


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30

Matt Shaff's Engine Shop / hprsepower limit of 392

« on: February 05, 2014, 01:29:28 AM »

We race two engines, allthough SBC, I would think the same applies to connecting rods. Both engines ingest more nitrous than most care to think of when using stock blocks and cranks. The small one (355) has more power ~70hp but uses less bearings on both rods and mains. It has aluminum rods. There is some minor cap walk on both engines though at this power level and we have broken the no1 main cap but without hurting bearings on the alu rod engine. The engine seems way happier with aluminum rods, than without.


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