New Rods For The LNF @ TTR
#26
perhaps you guys need to take economics 101.
people left and right build ls1 thus companies that pay tons of money for the machines that build them are compensated faster.
whos going to buy these rods? only a hand full a year. so they need to charge more to pay for the cost of building them
people left and right build ls1 thus companies that pay tons of money for the machines that build them are compensated faster.
whos going to buy these rods? only a hand full a year. so they need to charge more to pay for the cost of building them
#27
please, like they have to buy a whole new cnc or lathe or whatever mold..... NOT! its all computerized. and they own all their equipment, its just good old fashion gouging. how much are SRT4 rods?
#28
They don't just slap a slab of steel on a machining table and press the easy button
#29
Wrong, They have to design the rods (CAD/CAE), that costs money. They need to build fixtures for machining and inspection (minimum). They need to pay someone (CAM) to write the program for the CNC machines. There is more than you think that goes into the CNC mfg of a part like this, and all of these things cost money. Unless you have worked somewhere that produces high quality, tight tolerance components such as these you don't know what you are talking about.
They don't just slap a slab of steel on a machining table and press the easy button
They don't just slap a slab of steel on a machining table and press the easy button
#30
Forged parts require parts specific dies. They have to be designed / manufactured / tested / adjusted etc... Then you must figure the cost to design the rods themselves, the setup cost for each process they go trough, the cost for the burnishing or honing tools used for both the big and small end. You also need to train your employees for these new parts, make more quality controls at each production stages when making a new part...
Honestly, people always underestimate how hard it is to release a new product. I am a mechanical engineer who works in design and manufacturing and I know that every time we setup a new type of part I have to work 2x as much as usual...
#32
In Carrillo's product lineup they actually have 3 part numbers for the LNF rods. 2 appear to be H beam and one is an A beam.......what are the differences and why did TTR chose to stock only 1 style?(or are they all the same $ for each style?)
#33
IIRC, the only major differences between the ecotec rods are the lengths and wrist pin hole diameters. Thus, the LNF and LSJ rods should be pretty much compatable, but switching lengths will change your compressioni ratio and your piston to valve clearance. Seems to me that using LSJ rods in a built LNF would be a decent way to pick up a little more compression...
Edit: Wow, the length isn't really much different either. I wonder why GM bothered to make four different lengths instead of sticking with just two...
Edit: Wow, the length isn't really much different either. I wonder why GM bothered to make four different lengths instead of sticking with just two...
Last edited by shabodah; 12-01-2009 at 09:57 AM.
#35
The A beam is a bit cheaper (~$50 for the complete set)
Most want "H"
So yes, there are 3 different rods available for each engine (LSJ and LNF) 6 total rods.
H style and A style
Last edited by TurboTechRacing; 12-01-2009 at 10:33 AM.
#40
Edit: I should mention that there is no point in messing with a GM 60 degree pushrod V6, thus, the lack of any mention of the 2.8L, 3.1L, or 3.4L engines...
#43
#44
#45
Do these need to be tuned for on a stock turbo car?
#46
#48
#49
What are the differences (besides price, of course) between the H and A?
After trying to do some research, it seems that H is seen as a superior rod to most, but I can't find any mention of an A type for any vender besides Carrillo.
After trying to do some research, it seems that H is seen as a superior rod to most, but I can't find any mention of an A type for any vender besides Carrillo.