UPDATE: 5.5agze 20v coming Spring 2015 by gaijin_rokurunner

By diyauto
( 4 )

4 minute(s) of a 106 minute read

3-14-2013

decided to bump c/r up to 14.1 since the engine is apart and invested in a Hy-tech header....the bill keeps getting bigger is there no end to spending money on these damn cars and engines !....


3-15-2013


Yeah dont have to pay for anything since it was their error ...i did buy a hytech header so i ended up spending money anyways lol


3-17-2013


No the block has 0 deck height i just think its the angle of the picture that looks like that...I sent cp an original HKS piston from the 5ag kit as well as the stock 20v piston which at 83mm and 1mm head gasket made it 12.2:1 c/r then the did a thin head shave to get 12.6:1. There is nothing wrong with the short block everything was done properly. Quick silver has been building 4ages before hasselgren, Elite and just about as long as Loyning so they know what they are doing. As far as the side walls the block has been cemented half way up the waterjackets so there is no worry about pressure on the side walls...the whole incident was a simple mis calculation of the valve pocket angle on the deep side thus the edge of the valves hit mid way down...which is why they are covering the cost to fix it. I dont think longer rods are a good idea for the 5ag due to the already longer stroke...the pin has already been moved up far where the pistons already use three rings...also i chose to use the same dome height as the stock piston because of the shape of the combustion area which is very flat compared to the 16v...i think the setup will be fine once the rebuild is done and the reliefs are corrected...the hp made already suggests a good build since nobody has made that much on a 20v to date and it wasnt even tuned 100% when it blew. Once its all done with the changes made and the new header i pedict the mid to high 260s at 9500...anything over 250 is satisfactory to me ...tecarts 7ag 20v only makes 200hp and thier 5ag 20v in Toshiki Yoshioka Team Droo-p AE86 only made 230hp...


3-20-2013


5.5ag is 83mm bore 83mm stroke..i dont think when u get into the .000 area it technically matters or makes a difference as its so minuet its mathematically the same. As far as side loading...my skirts are a lot shorter then stock and have also been coated to reduce that friction plus as i show in my thread my block has been cemented which strengthens all 4 cylinders tremendously. A lot of people dont do that when they bore to 83mm which puts them at risk especially if their block is not bored or honed properly....mines was all done at operating temp which reduces wear on the cylinder walls where as people who bore and hone their engines at room temp see extensive wear on the cylinder walls and rings at operating temps and the cylinders change in shape due to heat. My pistons are CP and incorporate a different design then Wiseco...should be a couple weeks before we are up and running again...CP is slow making pistons 3-4 weeks for one...and have to get a few valves made also...


Not sure about suzuki but Zeke at Ferrea said they are simular to the yamaha motorcycle 5 valves in size..which makes sense since the head is yamaha made...my valve springs are a variation of moto gp suzuki springs with a bew retainer and seat to fit the 20v head



Comments

A lot of detail!

Posted by Diggymart on 3/24/20 @ 4:53:18 PM