Would love to see some pics!
1988 Saab SPG modified for land speed racing. Raced from Fall of 2008 to May 2021 in East Coast Timing Association at Maxton NC, Willington OH, Blytheville AR and Loring Timing Association at Loring ME. Best speed in the mile 170.454 mph 30 psi boost at Wilmington in May 2015.. Best speed in the 2 Km. 173.044 km 30 psi boost at Blytheville in May 2021. Modifications 2.0L short block 2.1L cylinder head & 2.1L Intake Wiseco custom forged pistons - 9.0 to 1 c.r. SAAB/Crower regrind camshafts 267 degree duration; .348 lift; 8,000 rpm valve spring set Master Power 70 series turbocharger with external wastegate 2-stage adj. boost control Deatsch Werks 78 lb-hr fuel injectors Deatsch Werks DW301 high volume fuel pump Custom 3” I/O intercooler & plumbing with 5L Ford throttle body Custom modified carbon Kevlar clutch disc Autobahn #8 primary drive gear set Quailfe ATB limited differential Solid motor mounts KD custom tube header with T4 merge collector 3-inch street exhaust with Flowmaster muffle; Race 3-inch straight pipe Cooling Mist water injection Megasquirt MS3 Fuel Mgmt. sys. AFCO 400 lb. rate front springs with adjustable ride height jack bolt KD custom 8-point roll bar & door bars RJS 4-point race belts Firefox 5 lb. aqueous fire suppressant system Custom front air dam Dyno April 2015 - 391 whp 25 lbs. boost at 6,000 rpm; torque 349 lb-ft at 5,850 rpm
88 Saab SPG Land Speed Racer running at East Coast Timing Association Ohio Mile events …
Would love to see some pics!
Attached pics for the SPG
Awesome - very impressive stuff. How reliable is it?
Pretty good. Bought the Saab off a lease in Jan 2000 with 72,000 miles. Started land speed racing in the Sep. 2008 with 200,000 miles. Rebuilt the engine first size overbore. Pistons, rods, and crank are stock. No engine issues in 70+ runs and driven to all the events until I broke a transmission (shredded third gear) at the May event this year. Running 24 psi of boost and car was quite a handful before the traps at 158.6 MPH. Trans are the weak link. Key is fuel mixture and no drag racer style starts in land speed racing. Run on a chassis dyno to make sure air fuel ratio is in a range of 11 to 12:1 at wide open throttle at engine redline. No detonation issues with big intercooler, water injection and 110 octane gas. If I can come up with funds want to build a 7,500 RPM engine with forged pistons & ported head and target 600+HP and figure out how to beef up trans.
Can you do a build thread or detailed post in the main forum on this please?
If you installed Mahle stock-type oversized pistons when you rebuilt it, you already have forged pistons. They're pretty stout. I think the only way you'll beat them is a custom forging.
Jerry I am using oem Mahle pistons. Last run pulled 32 psi boost at 6,300 rpm 5th gear and 166 mph in the mile. Compression down on one cylinder (100 psi). Believe broke a piston ring. That engine had 32 runs on it. Have had discussions with Mahle Motorsport and they have all the specs to make a racing forged piston. Wiseco another possibility. Looking at upgrading fuel mgmt to T5 Trionic as I can't manipulate the fuel maps on the oem LH Jetronic.
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