whats needed for high revs?

[93grandprixse]

you would also want a light valve train, light connecting rods and pistons, as well as a light crank which all would need to be balanced precisely down to less than .2 grams...

you would also find benefits from running an electric water pump, smaller crank pulley and larger alternator pulley, and a light weight flywheel with a 3-4 puck clutch...


you could also go even more extreme by using a 2.8l crankshaft in a 3500 and eather shaving the deck hight way down, or using longer rods...

annother good idea would be to have seperate intakes for each cylinder with a primary and secondary fuel system for each "runner" kind of like how formula 1 car engines are...

would be a crazy build...

[Nightingale]

Aluminum rods are pretty much a drag race only item because they stretch out. If you were serious you would start with a 3.5L since the heads flow great out of the box, and for the price they are a great base engine to start with. There are numerous things that would determine getting an engine to rev up high. Valvetrain weight, cam, and rotating assembly weight all play into the engines "revability."

[no_doz]

lol this would actually be with a 3100/3400 and it would be in a non-gm vehicle that is particularly light. i dont necessarily intend to do this-im just curious as to what it would take to make one of these into a high rev monster :P. also whats up with the aluminum rods on DD? i said aluminum because i wasnt sure whats best for strength/revs-i believe itd be forged but im too tired to look it up right now-i get off work here in 8 mins

[1988GTU]

I didn't see that this was a high reving thread for 3.1/2.8's .... LMAO!!!

No seriously, is this a joke? Keep the RPM's below 5 grand at all costs! It'll save for some pocket book heart break and power hungry let down.


























LMAO this thread got me right in the kisser. POW!

[kflo 93 gt]

Also, are you thinking of trying this with the 3.1? In that heavy tank? With the automatic?

I'm on the floor LoLing all over the place

[asylummotorsports]

There is no need to rev these engines anywhere near that high to make tons of power.

And aluminum rods on a DD is absurd!

Sounds like a big batch of overkill to me.

Have fun with it, and stock up on rebuild gaskets.

[no_doz]

we'd be talking daily driver :P

[Nightingale]

question is what are you doing that you need such high rpms, and 2) is this a daily driver or a track only car? I mean with aluminum rods you are going to need to rebuild the motor frequently. Your also forgetting to add that you would want the crank knife edge as well if pushing for max rpm(helps with windage and lightens the crank).

[no_doz]

with light aluminum flywheel, ac delete & underdrive pulleys, aluminum aftermarket rods, high compression, and the right cam, what would be needed to make the hp peak from 6-8kpms (like with the wot-tech cam 1651) the hp peaks from 4-6k rpms then drops off by 7, im talking a cam that peak hp ranges like that from 6.5-8.5k rpms. what would be needed in terms of the head/valve springs? i realize that the throttlebody would need to be quite large so i figure a dual port one off of a 90's lt1's as well as i realize everything would need ported & gasket matched & massive computer reprogramming done of the part of wot tech :P