Recent content by pullthis

spf, thanks for all the info. I have talked to both lex and *** about cams. I have not got any prices or time frames yet. Hopefully lex can give us some info on the valve spring tension.

spf, so the answer is it wont stay together because of the open deck design? what would be the hurdle with the cams? will they break? will the valves start to float at that high of rpm enough to worry about contacting the piston? I would think that dual overhead cam engine such as the...

lex, you have personally seen the interals of the 3ur, how far can this engine be pushed as far as rpms without it coming apart? Im not talking over a extended time but like for 10 to 15 seconds the time it takes to make a 310 ft pull? Taking into account the truck will be pulling a 30,000+...

I have jba shorties and a volant cai. I am thinking about going with the doug thorley LT headers and removing all 4 cats. I also will be installed a LM2 to keep track and to help adjust the fat 10 to 1 afr at full throttle. If you dont think the cams would be worth it I will avoid them. Could...

Lex, Have any idea how much could be gained? Would the new profiles effect the ecu or the vvt? How do the heads look in the intake and exhaust ports as far as making more power? What does the 3ur need to make 450+ hp naturally? thanks.

Lex, Whats up with the 3ur? When are we going to see some parts for this engine? I am thinking about cams for mine. Have you looked into hardwelds and regrinds to see what may be gained? Also and I am looking to raise my rev limitor as well. Tax returns will be arriving in a few months and...

anyone on apexi rsm

no gears available yet that would make that big a difference. to go from 15mph(4.30 gears) in 1st to 19 you would need like 3.73.

I am in to sled pulling/truck pulls and my truck is geared wrong for this. To slow in 1st and to fast in 2nd, so raising the limit would help 1st gear alot. As far as power their not an issue cause it hits the limit at like 100ft mark and stays their the whole way. can anyone else vouce for...

not sure if this is the place to ask this question, but here goes. I would like to increase the rpm limit of my toyota 3ur. Is this posible in any way? stock is 5800 and I would like it to stop at 6800. I know other internal mods may also be needed. thanks.

what plans do you have to improve it? I have a 5.7 tundra and I want more but have to stay N/A.

have you guys heard of companies who have experimented with the internals of this new engine? Cams etc. I am looking to keep my engine N/A. But may be willing to try a set of cams if it would be of any benafit. I soon will be installing jba headers, jba dual exhaust, CAI etc. also hope to...