TPR-1 Is a ported Head with stock valves size to maintain the low end when you are OFF the boost.. the trip to work, or on the way to Jack's for fish and chips! Usual mods are the exhaust/ pulley/ CAI. This head is perfect for the spirited drive, or the occasional Track day!! MPG actually increases!!!
TPR-2 Suggested Mods 15-19% pulley/ CAI/ exhaust / camshaft and a tune... we have that covered also.. Still not a full on Racer, however like to show the tail lights to others?? Great power mid to top end (where EVER that is...) Higher flowing larger stainless valves with the under cut stems for even more airflow, the Exhaust Valve is INCONEL to take more heat, titanium Retainers and Valve springs for 7800 revs. Custom Bronznaium 90 Guides. Custom Steel Locks. MPG isn’t your bother, being there first is!!
TPR-2R Not just another BVH, this is custom built to your needs. Your rev limitations, and cam lift!! No cookie cutter here!! This HEAD TPR-2R will take all the boost you can stuff in to this little engine!! Deeper port work.. aggressive Throat and Bowl contour and smoothing. Custom Bronzanium 90 Guides, PAC Racing Valve Spring components for 8000+ revs and Camshafts with over .500 lift, Larger Stainless valves , +1.8 mm int, +2.3 INCONEL Exhaust, with the under cut stems and when tied together with the performance valve job with the back cut (more low lift flow). Custom Steel Locks. These heads just flat ROCK!!
Not suggest for the daily drive.. But some do it anyway!!
There is an ADDED core fee on all heads: $500.00 - Happy refunded when a rebuildable head is received wintering 14 days
NOTE: Some Chambers have shown cracks. Refun will be declined if chambers are cracked
Re-built the OEM R53 W11 Short Block : $2100.00 - No Core
Built Performance R53 W11 Engine : Price $7135.00 - Core required
W11 Stock Short Block: Using a good core the engine is cleaned and inspected. Pistons are cleaned and Mic'd , the Connecting Rods are cleaned and Mic'd on the big and small end. Block is then fitted with 'Deck Plate' and torqued to operating spec with ARP Studs. The Cylinders are now cleaned and Mic'd for correct tolerances . Block is Decked for better sealing. Crankshaft is cleaned and Mic'd for correct tolerances and clearances, oil holes are beveled for better oil flow and coverage, then Polished.
W11 Performance Short Block Build: ADD. Forged Pistons. Using Deck Plate, bore cylinders for performance clearance. (77.5 mm.) Rods fitted w/APP Bolts, beams Polished. will support 400 + HP . ADD H-Beam Rods Will support over 600 HP.
W11 Performance Engine: TPR2r Cylinder Head, TPR408 Camshaft. Block is Decked and Indexed. Deck Plate is installed with ARP Studs and torqued to Operating spec. Block is Bored and Honed and Clearance to 77.5 mm. Forged Pistons are installed with Performance Side Clearance. Rings are set with performance end gaps. Crankshaft oil holes are beveled for better oil flow and coverage, then Polished.
** The Parts: Short block and Engines come with Performance Rod and Main Bearings. New Oil Pump, Head Gasket , ARP Head Studs, Performance ring set with End gaps correct, Bearings are Performance Enhanced thru Modification.
They have been out for the r50/r53s for years. People buy them and install them.. however is the advantage of an adjustable cam gear used on most of those applications?? NO!! Well, Why??
Here are just a few reasons..
1) most enthusiast are not equipt to 'degree the camshaft ' . OHC FWD is hard to do in the car, esp when there are NO visible timing marks on the engine.
2) After they find the Cam Phase ( degree's), then they really have no idea on where to set the camshaft "in" .
3) There are only a few camshafts that actually provide cam profiles ( cam card) to help determine where to set the cam for YOUR application. And with out the Cam Card, the need to 'Degree the camshaft' is paramount.
Why even care?? There has always been more power in any given camshaft, and some Engine Builders use that add'l power to make their engine stronger than their competition. Thru Computer simulation, experience of actually changing the cam phase during events, or during Street applications. This knowledge isnt secret.... but it can be guarded . In our testing we have seen 5-6.5 WHP and 12 FT Lbs torque INCREASE when changing the Cam Phase on most current camshafts.
I now offer the complete setup for you r50/r53. It will add gains to the OEM camshaft installed, or MORE power to the existing Aftermarket Camshaft installed. When you purchase the TPR Ported Head, Camshaft, and Cam gear.. You will receive the combination set up AND adjusted to YOUR Needs. ( Street - Aggressive Street- Weekend Track- Full track)
** All cams over .410" Lift requires High lift PAC Racing spring set w/ Ti Retainers: $400.00
Higher reving PAC Conical Performance Springs w/Titanium retainers
The Interface from the intake manifold to the ported Head is now a restriction. We have seen good HP/Tq numbers by smoothing that transition.
The Ported Intake Manifold in the r53 are no longer a bottle neck in the run for POWER!
REFUNDABLE Core fee added are the following: Head ( r50/r52/r53 ) $500.00, Intake Manifold added: $150.00 !! ALL core fees are happily refunded when your good core is received with in the proper time period.
NOTE: When purchasing any Head Combination. The TOTAL Refundable CORE fee will be only $550.00. Regardless on the Core Fees required for the other bits! Posted Jan 2012
If you are looking to have V8 Cylinder Heads Ported email me'
All Internet posts and sales default to the prices on this web site. NOTE: there is a 50% FEE, if sale is terminated before completion. Warranty: Due to the intended use of products for High Performance applications We make NO Warranty, either expressed or implied. any questions contact me at Thumper460@hotmail.com