Main British Car:
1975 TVR M series Ford 331
1975 TVR 5500M
Posted by: slow_M
Date: December 07, 2009 02:11PM
Owner: Bernard Holzberg
City: Seattle, WA
Car Model: 1975 TVR 2500M (2.5L TR6)
(Based on 1988 Ford Mustang 5.0 hydraulic roller lifter motor)
Displacement: 331.646 CI (5434 cc)
Block deck ht. 8.200 (Std-decked)
AFR 185 (emissions legal) Part #AFR-1422
Ed Iskenderian Racing Cams 371-RR SPEC/ROLLER CAM RR-573/294HYD, 110LC
(Order number 178188)
Valve Lift - INT: .573 EXT: .573. ADV Duration - INT: 294° EXT: 294° .050 Duration - INT: 248° EXT: 248° Lobe Center: 110°
CAM LIFT: .358"
VALVE LIFT: .573"
Miller Engineering 1.6:1 7075 extruded aluminum 3/8 stud mount Roller rockers part # PA3060B-Y
PS4 valve spring package by FlowTech Induction.
Probe Pistons part # 12357-030
Manufactured of 2618-T6 extruded bar stock forgings.
Intake pocket is 2.150 diameter x .250 deep.
Exhaust pocket is 1.900 diameter x .220 deep
Tight running clearance (.002 to .006)
Weight matched (+/- 2.5 grams)
Finished diameters +/- .00005
Rod big end diameter: ?
Wrist pin diameter: ?
Crank main journal diameter:
Bolts: SPS-CARR 7/16 (torque to 95 Lbs/Ft re-useable)
Hawks Racing 4340 FORGED STEEL (3.25") Stroke Crankshaft for use with one piece or two piece rear seal, part # HR-CK-DG3-302A
Stock 302 main journal (2.2486") and rod (2.1232) for use w/ stock Ford 302 Bearings.
CNC Machine for "Competition" Quality and tolerance
All Journals micro polished to 5rms finish
Rounded Crank Throws for superior windage
Generous .125" throw radii for superior strength
Large chamfered oiling holes for improved lubrication
Can be balanced to 28.2 or 50 oz imbalance
Magna-fluxed, ultrasonic tested, nitrated and shot peened for lasting durability and performance. 100,000psi Tensile Strength and Double Heat Treated
Steel main bearing cap girdle fitted.
Paxton 1000 HP Fuel Pump ........ .... part # 8001688
Paxton Fuel Filter ...................... ....... part # 8001689
Fuel Filter Element ..... part #
Paxton 5/8" ID billet Fuel Rails ....................... ....... part # 5007026-2
Paxton Adjustable Fuel pressure Regulator . .. part # 8001690
Parker Funnel Web
Will be Modified with addition of injector bungs
Barnes Systems, 9017 series, 6-stage pump with 3-lobe rotor
belt driven off crankshaft
NONE AS YET
Exhaust: not completed
Will (at least initially) be based on Hooker Header flanges
Stepped design with 1-5/8" & 1-3/4" primaries
Toyota Supra (1989 & newer) clutch type limited slip w/ six-bolt (CV joint) flange
Ratio - 3.67:1
Transmission Technologies Corporation (TTC) Tremec model 3550 five speed w/ (?what position?) shifter. (# of spline input shaft??)
torque rating of approx 375ft/lb(3550) improved synchronizers & improved shift.
...will be custom units
The rear uprights/hub carriers were reinforced by addition of 3/8" plates in the original casting holes at the rear face
and modified to allow the use of Nissan 240SX stub axles, hubs and brakes (-see below)
All suspension arms are OEM TVR, all of these, with the exception of one rear lower A-arm are nickel plated as originally installed.
Rear lower A arms were reinforced by adding triangulation (see below)
Spax 14-way adjustable part # G767-S180 for T.V.R. front & rear
Front: 14 225Lbs
Rear: 14 130Lbs
SPF0731/19 -3/4" Front Anti Roll Bar to Body Bush-2 req
SPF0288 - Front & Rear Wishbone Cotton Reel Bush & Stainless Steel -uses 24 per car
SPF0941 Steering Rack Mount Bush
WARNING: Bushes must not come into contact with alcohol-based solvents such as MEK, methanol, or methylated spirit.
Suspension set-up data:
(To be used as a starting point only!)
Toe-in front 0Ί30 or 1/8
Camber front 0Ί to 1Ί negative
Toe-in rear 0Ί20
Camber rear .5Ί negative to 1.5Ί negative
Mazda RX7 (1989-1991) four piston Aluminum calipers and 10.9 vented disc. (find out spec on thickness!!) (also, find out piston diameter)
Nissan 240SX (1989-93) single piston, solid disc
Stainless steel braided lines Russell part # 8560/685600 (street legal Mazda RX-7 88-92) UPC 087133856001
John Purner's Complete Custom Wheel three piece wheels -polished centers machined from 6000 series forgings w/ polished, spun 5000 series shells
Front..... on 4 1/2"(114.3mm) X 5-bolt w/ " backspace
Rear.....9 1/2" wide on 4 1/2"(114.3mm) X 4-bolt w/ 4 1/2" backspace
Front.......12mm x 1.50 thread pitch (Mazda)
Rear........12mm x 1.25 thread pitch (Nissan)
Front: Kumho Exsta Supra 712 235/40 WR18
Rear: Kumho Exsta Supra 712 275/35 WR18
None as yet.
Hood was replaced after an accident with a lighter one from David&Gerald
Interior: Corbeau seats, plan to work on dashboard during the winter after determining exact roll cage location
Electrical: Will be removed and replaced. I have a complete harness from the 1988 Mustang that was the engine block donor.
Edited 5 time(s). Last edit at 11/21/2011 02:43AM by slow_M.