Drag car track results… 11.06 a New USA Record!

Finally got the drag car thrown together. Two evenings to build the motor, intall it and tune on the dyno. Found lots of interesting things along the way. China Bosch -044, B205 Bottom end, twin disk clutch etc. More on that in another post.

With a little less power than last year and still running that gt3071.64 first run out on the new clutch we ran an 11.26@133.4 Allright! Were on to something there. Track prep was not the greatest. We were slower to the 330 than average.  The lower compression B205 wants more turbo.   For the shakedown figured it best to have a bit lower power and just get it sorted.  The target was to get close to previous 11.33 best.
Read the rest of this entry »

Drag car B205 Dyno Data

Some very interesting data from the dyno with my new B205 setup.  Got the motor built and installed in 2 evenings. Quite a few hours on the dyno this weekend (between paying customer dyno cars) trying to sort out the oddness.

Ran the 3071.64 with the medium cams on my viggen and made 450whp, on the drag car with the 2.0 and Big cams made 540whp.  Now fitted the 3076.86 on the viggen and made 480 on low boost.  The 76 on the drag car made 480, whether high boot, low or at various cam timing. Could get less but never more.  Thinking it was the new B205 lower compression 8.8 down from 9.2 I swapped the 3071 back on.  Instantly we were back at 500. Little playing and we had 570whp  Fuel for the 500 so have to sort that first.  I have some ideas of what is going on looking at exh manifold pressure etc.  Here is a bit of the data.

B205 with 3071.64 and 276 cams. Comparing 3071.64 to 3076.86 on the B205B205 3071 Pressures

Hoping to get the fuel sorted out this week. The dual rail manifold is fitted but unused. Found out the china copy -044 is not up to the task of feeding the 1000s with raised base pressure at this boost. The injectors are happy into the higher pressures so the simple solution is new genuine -044. When I do that will also plumb the second rail of injectors. Running 465/630s low and 1000s up top. Activating the top set at 3500rpm or so and staying sequential.

New clutch is the 7.25″ Been testing the organic disks in my street car but for drag use we need the metallic disks. They sure grab! The guys also did some other mods to the car ;) More on that later.

Drag Car B205 Motor Details

Got some time to check valve celarances in the new drag car motor this afternoon as steven was making pulls on the dyno. Just as I thought, there is plenty of valve clearance with this low compression. Running the same 276 enem cams.   Knowing we will be overrevving this motor that was important to check.  We are also running the b2x5 gasket. Not only is it modern MLS construction but it is a fair bit thinner than the old b2x4 gaskets.  The displacement is nothing fancy ~2.0L.  Head is std t5 with only a little grinding. We did put a new set of springs in since the last set went two years plus. More on the rest later.

Oh and since someone will ask, WHY? well I had a pile of blownup b205s here.  No 2x4s.. So after tearing apart 3 cores to get enough parts a 205 it is.

Viggen Strut Brace Revision 3

New style strut bace for the Viggen and eventually the std brake 9-3 too. Although it looks simpler than the original version it is not. To get the best balance of stiffness and weight we use two different tubing thicknesses. This allows us to make it as stiff as the original double bar but lighter and cleaner looking under the hood. I got to thoroughly test this on the road and Nelson Ledges racetrack, it is ready to go. Catalog Page

T7 MAF Diagnosis Tips

One of the key diagnostic procedures on a t7 saab is checking the MAF sensor.

Maybe you notice it surging on cruise control, too little power/ too great of mileage or the opposite in the worst case it can kill a piston.  Many shops will repair the symptom without rectifying the problem! Read the rest of this entry »

Vintage Racer Dyno

Sweet vintage racer, one of our long time customers.  We sponsor his other racecar.   Race exhaust pipe was under 2″ Broke the century mark on torque  by a couple tenths.  ;)  You have to wonder what it would do with a ecotec turbo.  Sorry no HD video this time around.

IMG_0670
Click for a larger version.

Clutch system

I am sure not many have seen anything like this. A Pushbutton clutch actuator that has 100% fail back to std pedal.  Used it back in highschool on my -78 99 autocross car after killing my clutch knee.  This one is a bit fancier, had $250 budget this time around. ;)  Co2 Tank provides around 1600 or so shifts.   For now the activation switch is pretty basic and built into the shift lever. Speed regulation is 100% down and adjustable return. Works great and a quick twist of the adjuster is all it takes to match it to the conditions.  Next up is a force sensor on the pedal and a simple micro controller to limit the pedal pressure. Arduino etc. Tried it with a basic Stamp in the 99 but the ignition noise from the MSD always messed it up.  Also need to add a T into the line and a hose so the tires can be aired up.  Also the 3/8″ air gun should be nice on the tank and stil get the job done at the racetrack.

Heres the video from the first drive. Grab the HD if you cant see the pedal clear.

Koni Adjusters…

New CNC aluminum keychain koni shock adjusters. Always carry the originals in pockets at the track and drives me nuts so there had to be a better way.  I came up with these and steve ran a couple dozen out on the Haas. Has the damper adjustment arrow even.  I tapped mine for a setscrew to leave them installed on the strut tops of the viggen. For those interested in the coming week these will be available free in limited quantity.  More details on that later. ;)

SOC Track Day…

Leaning on the Rs…  Will get more up soon.   Red vig had a birthday on the track turned 25k , rolled 20K in Michigan coming back from the racetrack. Johnny Del’s Flickr feed

More photos from an unknown source. Left that cat in must have some meaning. http://genuinesaab.com/gallery/SOC2010TrackDay

1700miles on the truck,  Sure not Viggen seats. :)   Huge thanks to all that attended the seminar and set through it.  ;)     You can always email me via nick at this site.   Still trying to claw out from under a an extra weeks work.  Delivering another 400whp viggen today.  3full days of tuning on the dyno. Lowest air temp was 100f.

Ready to go For SOC track day!

Trailer showed up friday Evening. Delivered by the builder on his way home.  Paint still soft. Just a cheapie tilt.  Will do the job just the same as the $7500 aluminum ones.

Slicks are on and heat cycled. Resting now.  Looks MEAN with the 235s on the BBS CH.

Race Konis are mounted. Such a pain to swap on the GM900/9-3.  Quite nice but with the slicks could use a bit harder springs. Not taking it apart again today so they will be fine. It is my street car anyway.

Cody finished the V2 strut braces last week. Uses two different wall thickness tubes to balance stiffness and weight. Looks clean. Black texture.  He also made some Black Chrome billet parts. Will be on display at SOC.

TROLLVIG3076Turns out the E85 was actually E30 or so for the original dyno. Explains quite a bit.   ;) Lots happier now even with 100f in the dyno room and 75% humidity. Consistently put out 488whp @6200 and 440whlTq  @5700  Not bad for 25psi boost falling to 20  tapered it out just to keep the heat out for the track day. Have to fit the 1,000 CC Injectors after SOC then turn it on up.  Timing is still a bit on the conservative side of MBT.  Couldn’t make any more power or it just leans out. 13.0 gas equivalent should be fine.  Thats like only 10% rich.  Might try some ngk 9s  also.  Leaning on these BCR8ES a bit.

Tires for the viggen.

Picked up a set of BFG R1s. From tirerack in 235-40 17s. Should provide enough grip and be a 1/2″ shorter than the old 225-40 18s kumhos on for the street. Traded for a car years ago with BBS CH 17s to match my 18s one of my favorite wheels. Have to run those. Now with all the grip better turn down the power a bit or somethings bound to give up.

Viggen Fog Light Air Inlet

The guys finished up the new ram air intake snorkel for the viggen.  Replaces the right fog light and directs the air up to the stock airbox. Has a ramped floor to fight some water. Will work with stock airbox or the open air kit. Bolts to the factory foglight tabs. No drilling.  I go back and forth on the viggens intake. Sometimes the silent intake is nice but it does restrict power a hair at his level. Now obviously this is not the best option for those in snow country to run in the winter. ;) Should shed water decently with the design of the open air kit and the baffles between the filter and the road. Took about 15min to install so could be swapped for track use. We used thin aluminum sheet. If there is interest may go to limited production on these. Shame Adam had to weld it on the outside and you can’t see the clean weld beads. Here is a pic of half finished and another quick one of on the car.

FogIntake1 FogIntake2

Guide: Ng900 / 9-3 Chassis Tuning

I get lots of questions about what exact parts to install etc. Truth is there is no one right answer. I have built the same cars lots of different ways. The goal with modifications is the improve the cars feel and performance ability in the drivers view. Sometimes this can be just more tire pressure, others full custom springs etc. This is a long one…
Read the rest of this entry »

2.3i Tuning

Some of the data I gathered from dyno and road development on the 2.3i Shop project car. The B234 non turbo is a strong motor but not tuned to to make any horsepower. It can be fun but just don’t compare the torque output to a turbo car. From Intake pulse tuning to custom header and swapping intake manifold, even as far as converting to trionic to delete the MAF restriction the car still wouldn’t amaze anyone on the street compared to a stock turbo Saab.

http://genuinesaab.com/gallery/23i

More later.

Interested in Custom Konis for 9-3 w stiff coils??

Working with koni we can get hard valved single adjust (rebound only) front konis and also double adjustable (rebound and compression) dampers for the 9-3 with my coilovers. These are setup for stiffer springs. With a bit less droop and more compression travel.  Leave me a message if you are interested.   I am getting a set of the doubles for the red vig but wont be here for the show so I may have a set of low milage single adjust near cost.  Will basically be one track day is all.

Special one time price: Single $345/pr with Double $575/pr.

Viggen 3076 Turbo

Viggen3076

Bolted the 3076 on Saturday and threw it on the dyno sunday.  Temps were in the low 90s.  Didn’t spend much time on the tuning. It is a ways from optimal.  The 750s were pretty maxed out.

Same 264 cams., full 3″ system with muffler and catalyst on E85

Liked the 3071 better may go back to that and use this one on the drag car.  Power is a little too lazy for the street and what I use the car for. Vicious on the highway though.

SOC 2010 Seminar Content

So we have this time and I was wondering what sort of interest there was.  So leave me a comment and lets make this exciting.

2pm – 3pm Seminar: Nick Taliaferro Saab Performance Mods

http://saabconvention.com/schedule.aspx

Click the link to read my rough outline.   Read the rest of this entry »

t8 MAF scaling results..

Intake MAF scaling results from August -08..
Ok so as most of you know the biggest problem with aftermarket intakes (k&n, simota etc) is the MAF scaling issues related to airmass cuts or limp home..   BSR solves this by using a factory piece leading to certain success.  Others try with not so great results.  The test car is 9-3 Aero 2.oT 6 speed. Hardware is Catback, BSR stg1, Large Intercooler and 91 octane gas. Read the rest of this entry »

Prototype dual exit exhaust for 9-3SS

Fitted this dual exit catback onto my 9-3 SS Biopower. Much quieter than the Magnaflow that droned on the highway. Might be quieter than stock, Almost too. you hear is the gearbox and intake. Waiting on the rear spoiler from a 06-07 v6 with the factory dual exits. Then it has to go to paint. When the spoiler is on there we can adjust the mufflers. Pointless at this stage.

Here is the temporary image. Looks mean with the 245s and the mufflers hanging there, if even a bit ghetto half finished.

Almost have a final dead pedal for the SS to match the other pedals.

New turbo for my Viggen

Well you know since 450whp is not enough I had to pick up a new turbo.  Nothging crazy  just a bit bigger that will still drop wedge in. Will most likely need to swap over to the 1000cc injectors from the 750s.

Since the current clutch won’t like this much I have a new twin disk on thew way like we are running in the drag car. Twin disks inherently are noisy and a bit touchy but I have some tricks to deal with that. Already picked up some parts to make a co2 actuator for the clutch pedal.  I had a setup that used a 150psi air tank in my old -78 99 racecar, made it nice to drive with a messed up knee. Faster shifts too once you get the hang of it. The co2 will store much more energy for longer drives. The tank only weighs about 10lbs, stores 5lbs of liquid. Will make some brackets and mount it to the hatch brace.  For now will have a simple system of valve and flow control. Eventually have plans to control it digitally by gear.   Plus need to make some real power to test my new gearbox bandaids, more on that later.

Drag car next steps…

Since the drag cars B204 was not rebuildable.  ;)  We are building a B205 motor with the best parts out of some scrap motors I had around. Will loose a bit of compression, droppping from 9.2:1 down to 8.8:1 or so. This should not hurt us too bad. the longer rods and lighter pistons of the newer generation motor should help make up for the compression drop. Still going to run the little Gt3071.64 turbo for now.

Gearbox P….

Some resources From GM for my new project.    Nice being a Sema Manufactuer.. ;)

Drag Car Adventures

Finding a few spare minutes out of the week we were able to get the drag car back on the road with the new twin disk 7.5″ clutch and four speed f25. It also has the new style race rear mount and short shifter. ( We stole shifter housing for a customer. SEND BACK CORES!)  The deleted balance shafts, 2.0 L short stroke and the super light new flywheel make it rev change perfect and quick. The lower inertia of the small clutch disks and gears really show.  On the street it was sick! Dropping effortlessly into gear at any speed.  Steve agreed, ;)  big smiles on everyone. The old e85 made it even better with the popping and fireballs. So decided to make the Dragstrip. Going without a trailer.  Threw the tires / tools in the truck. 10 gal of fresh E85 to add at the track and drove there ~30min. Car is civil in rush hour traffic. Bit more pedal pressure than a B235R but ok. Open down pipe is a bit much is all.  Very fast even just cracking the throttle.  We get there and the tracks packed. Big boys and the shootout cars.  Stand behind a few in the starting line. Close, Back like 4 ft. :). Ok. Thanks for dragging me up there!   My sponsor Dyno  billboard is sick but not up yet. Ok. We decide to head home. Steve drives this time I get the truck,  just leaving we stop at the light next to a chick in an Acura. Ear to ear grins around. Steve just barely gets on it. Sounds great. Good fireball on the one two shift. Can’t even hear the turbo yet. Then sparks and a fluid trail. What! I know right! WTF. Found on road hot: one b204 rod cap, one rod bearing flat, 4qts gtx, one driveshaft bracket a tow truck and you get the rest… Reason for everything.  Right Ed?  Would have been in the doghouse for oiling the track on a big night.
The 9mm stock rob bolts are pretty sturdy but accumulated stress caught up with us or we did more damage last year when the last Spec setup exploded.  Either way at least the clutch and gearbox troubles are going away.  Now time to build a B205 based motor with some technology.
Supercharged viper tuning on the dyno in HD http://www.youtube.com/watch?v=CJMu5TiAaCI and twin turbo lsx nova with the headers glowing after that..  Some sweet video of the drag car :
Video: Drag Car

IMG_9746
[427×640] [800×1200]

Somethings Missing
IMG_9759
[640×427] [1200×800]

Oh there it is in the oil pan…

Carbon parts from the dark corners of the parts room.

Found a set of new factory sealed carbon door pulls in the parts room.  :)  I just happen to have a 2 door 9-3 too.  ;)   Not sure why it felt wrong cutting the tape.  Still haven’t put them on the car.