Supercharger Q&A, Moderated by Dyno Bob

2010 Shelby Snakebite

Dynobob — Thur, 05 Nov 2009 21:03:23 GMT

Everyone here at the shop was excited to get in our first 2010 Shelby for a Snake Bite tm conversion. The overall driving experience of the 2010 differs very little from the 07 - 09 cars, maybe 3% better handling but the shifter is no better and the clutch has a very light pedal. The initial dyno runs on the all stock 2010 with 135 miles on the clock produced 475 RWHP. Trying our new blue filter produced a 5 hp gain. The factory A/F ratio was 9.5 and under 10 and rose to 11 at 6200 rpm - dyno rpm would not hold steady at hi-rpm due to the over rich factory tune. The Series II Snake Bite throttle body which is based on an OEM unit made 24 RWHP and flowed 1250 cfm compared to 1035 stock. The Series III flows 1450 but was not used on this kit. With the addition of the Snake Bite tm kit the factory tune leveled at 11.0 with no additional tuning, timing was 21 deg factory. This car used the stock MAFF housing with our air filter and NGK 4177 plugs gapped at .035. With the Snake Bite kit, with complete factory pulleys installed, peak power rose to 569 RWHP, an increase of 93 hp and there were gains under peak of over 110 from stock. This car now has complete factory appearances, yet produces tire shredding power and pulls like a banshee in all gears. We were not able to road test the car with the factory tune because of rain but we added an X-CAL 3 with our tune and the car ran 100% in all tuning details. There were no load levels or pedal positions that felt soft or out of place, it actually drove out better than stock. I am confident in mailing this tune out with the kit. In second gear this car will now burn rubber at will at any speed. Overall I am very pleased with how our kit worked out on the 2010. There were far more different details in this car than I expected. For more information on this report or details of the conversion process and the parts involved, please give me a call or send me an E-mail at Dynobob@stiegemeier.com.

PD_2010_Shelby_compiled.jpg (998.06 KB) - Today

Forum: 2010 Shelby Snake Bite

snakebite increase

xstork — Mon, 02 Nov 2009 04:44:29 GMT

Bob I have an early port it was an Apten port when you guys were porting for them a stage one , right now I am running a 2.76 upper I dynoed at 501 hp to the rear wheels 488 trq just wondering what kind of an increase I would see going to a snakebite port and could I run a four pound lower with out over spinning the supercharger and if so what kind of power would that give me thanks and keep up the good work you guys are amazing .

Forum: ASK BOB

STIEGEMEIER GT500 ALL INFORMATION

Dynobob — Fri, 30 Oct 2009 15:39:53 GMT

This is our 2008 Shelby GT500
Stiegemeier's 2008 Shelby GT500
Blower w/STOCK upper pulley and STOCK lower pulley,our Street Kingtm Induction package w/billet MAFF and Snake Bitetm level 2 TB, and Drag Radials only.
Full weight with 3/4 tank of gas.
This was only the second pass on the car, there is much more left in this combination. Stay tuned! 126 MPH
Here is the Graph
16#s Boost
This graph is with 373 ring and pinion if comparing numbers for 330 ring and pinion add 15 RWHP and RWTQ - Equates to 610/610
Refer to the December article in 5.0 Mustang magazine on the difference between ring and pinion, I have also spoke with senior racers and they agree with the article from personal experience.

VIDEO AT THE TRACK

I probably left something out please feel free to ask any questions.
We are also in the process of updating our Web site and we are no longer requiring you to submit an application however we need to know your mods and goals ect...
Call for details or more information also:
636-949-2275
636-925-1656
Thank you!
Stiegemeier:burnout:

Forum: ALL SHELBY GT500 INFO COMBINED

SNAKE BITE VIDEO AND TIME SLIP

Dynobob — Mon, 26 Oct 2009 20:01:36 GMT

Forum: CUSTOMER TRACK TIMES AND DYNO NUMBERS

Cobra 1/8 Mile Times

Dynobob — Thur, 22 Oct 2009 20:36:07 GMT

1/8 Mile Times!!
steigemeier ported the blower, its a stage 4

Got a decent run tonight at the local 1/8 mile, track prep was bad so definitely more in the car. Setup is ported eaton on spray, c4 tranny, full weight 03 cobra vert.

reaction time 0.612
60 foot 1.535
1/8th mile mph 104.6
1/8th mile ET 6.651

very happy with the car
c4 is the way to go!!!

link to svtperformance.com.
http://www.svtperformance.com/forums/time-slip-bar-42/643922-1-8-mile-times.html

Thanks for posting
Stiegemeier

Forum: CUSTOMER TRACK TIMES AND DYNO NUMBERS

How much hp from stage 5

White03lightning — Thur, 22 Oct 2009 20:16:58 GMT

I have a 03 Lightning with stock upper and 6# lower what will I need as far as upgrades,tune ect..
Thanks

Forum: ASK BOB

GT500 vs Nitroused Z06

Dynobob — Wed, 21 Oct 2009 17:30:52 GMT

Videos and modifications:

This is our GT500 at Gateway Int. Raceway on Oct 20, 2009. Mods to car are: Snake Bite Blower w/STOCK upper pulley and STOCK lower pulley,our Street King Induction package w/billet MAFF and Snake Bite level 2 TB, and Drag Radials only. Full weight with 3/4 tank of gas. This was only the second pass on the car, there is much more left in this combination. Stay tuned! 126 MPH

Forum: Stiegemeier's GT500 vs Z06/NOS AT THE TRACK

Our GT500 vs nitroused Z06 vette at Gateway VIDEO

Dynobob — Wed, 21 Oct 2009 16:42:33 GMT

This is our GT500 test car at Gateway Int. Raceway on Oct 20, 2009. Mods to car are: Snake Bite Blower w/standard pulley and stock lower pulley,our Street King Induction package w/billet MAFF and Snake Bite level 2 TB, and Drag Radials only. This was only the second pass on the car, there is much more left in this combination. Stay tuned! Oh yeah, only 16# of boost with this setup!

Forum: SNAKE BITE

RESULTS

Dynobob — Tue, 20 Oct 2009 06:24:55 GMT

Base run 2.8 upper pulley only, 20 degrees timing, 12.8 A/F, 363 RWHP 441.5 RWTQ
Anderson Ford Tuned with Diablo
Snake Bite 2.93 upper 16 degrees timing 11.4 A/F 413.4 RQHP 502.5 RWTQ
A gain of 50 RWHP and 61 RWTQ.
By comparison if timing and A/F would be the same power and TQ would of rose 15-20 more across the board.
This Lightning Truck had a fan switch problem. All runs were ran at water temps of 200 to 205 load increase from 139 to 173 MAFF volts reached 4.44.
I will keep you informed on further progress.
As always feel free to call me direct.
636-949-2275
636-925-1656
Thanks!

Forum: LIGHTNING/HARLEY SNAKE BITE

STIEGEMEIER PORTED INLET AND COMPETITOR PORTED INLET

Dynobob — Fri, 16 Oct 2009 23:18:53 GMT

Stiegemeier port inlet:

Competitor "race port" inlet:

Forum: Stiegemeier vs " race port"

Removal of Supercharger

Dynobob — Fri, 16 Oct 2009 23:13:53 GMT

Forum: Stiegemeier vs " race port"

03 SVT COBRA TEST CAR

Dynobob — Fri, 16 Oct 2009 23:13:00 GMT

Forum: Stiegemeier vs " race port"

STIEGEMEIER SNAKE BITE vs COMPETITOR

Dynobob — Fri, 16 Oct 2009 22:26:34 GMT

Test 1

Stiegemeier Snake Bite tm vs Competitor port 3.65 upper x 4 lb lower.

The second topic of discussion is centered on the lay down of power at high RPM for the Snake Bite tm on the power rise. This is due mostly to the restrictions of the OEM exhaust manifolds. I say mostly because there are other factors involved, but that is a discussion to lengthy to discuss at this time.

The Stiegemeier Porting team continually strives to learn and improve our products so we have invested heavily on new testing equipment that will undoubtedly lead to new innovations an unseen power levels from this platform. These test were a great help in equating flow numbers from the SXF-1000 Flow machine to RWHP dyno numbers.
The ability to flow test the supercharger independent of the vehicle will be a new tool in our constant learning curve.
Sincerely,
Robert D. Stiegemeier

Forum: Stiegemeier vs " race port"

4-vane rotor swap?

CaysE — Fri, 16 Oct 2009 19:45:41 GMT

Maybe this is insanity talking, but is it possible to swap the 4-vane TVS rotors into an older 3-vane blower unit?

Forum: ASK BOB

Max output of snakebite?

Satyr — Mon, 05 Oct 2009 07:12:00 GMT

Bob,

I was wondering what the max supported boost is for the snakebite? I just got mine back with the 3.2" pulley and was wondering what the smallest upper only setup you can go to is?

Also, with the new porting and rebuild work, what's the RPM's of the eaton compared to stock? How fast can it be spun (and with what size pulley)?

I am trying to get an idea of how to maximize my setup...and wanted these questions answered before making any decisions.

Thanks

Forum: ASK BOB