I was given permission from the guys at TQ to start a thread just for the new 501T engine. I was also given permission to post pictures of the internals in stock form and a few of the post modification.

For a little background on the engine. The engine is basically the older GRP .21 tuned that was reinstated by TQ Racing with the assistance of Rody Roem who was the man in charge of the older RB Concept engines in the 1004- 1005 series days which were some of the best engines of that time. Those engine were consisted of the C5, C6, C6BB, S5, S7, S7II, S7 Worlds, S7WIII etc. They were all outstanding engines and we can expect nothing short of excellance when it comes to the new TQ engines.

I was known for awhile as one of the sole concentrators of GRP modified engine performance and I get to carry on that tradition with the new TQ 501-T and and any other engine they produce in the future.

The TQ 501-T .21 high performance engine is designed and built in Italy and has high quality features such as a hardend steel crank, high quality ABC sleeve, lightweight CNC billit aluminum piston, knife edged aluminum rod with additional strengthening over previous design, a light weight, low center of gravity 60mm cross drilled 9 fin head for improved cooling and weight placement in the chassis, new carb design with new slide and needle designs for what is said to be for easier tunability and better fuel mileage but also maintains the throat sleeve to act as a heat barrier to keep the carb temps down which helps the tune stay more consistant and predictable. There are more features on this engine that make it a high quality, long lasting high performance engine for the money but I just wanted to touch base on the most important and most notable ones. The specs are as follows:

Type: Offroad

Displacement: .21ci (3.5cc)

Bore: 16.26mm

Stroke: 16.80mm

Rear Bearing Size: 14x25.4x6mm

Front Bearing Size: 7x19x6mm

Port Count: 5 intake, 1 Exhaust

Plug Style: Conical H6 Turbo (included)

Carb Type: Aluminum Casted/Slide with 7mm venturi

Head: 60mm 9 fin cross drilled

Crank Style: 14mm SG/SPT

Head Bolts: 3mm allen drive

Backplate bolts: 2mm allen drive

This thread is being setup to inform those who are looking into the purchase of this engine and also to inform people of the different setups, tuning and any other information that is felt needed to have the most successful and longest lasting engine possible.

I am a TQ engine dealer so anyone interested in purchasing and engine can get one directly from me whether in stock or modified trim. Thanks for your support and contributions to this thread.