TB upgrade

[Cam'ron]

i tried snoopin around and couldnt find any info...

i am considering upgrading my throttle body on my 3.4 there is a larger one posted on pfyc.com and i was wondering if the TB on a 3.8 is bigger then the one on my 3.4 and would the difference in size make any HP gains... i figure a JY TB could do the trick instead of payin what Pfyc.com wants... This is a new one to me and i dont know if the ywould make a difference any info would be appreciated

[z34Phoenix]

I dont know if they are interchangable. but if you dont want to spend all that on a new TB try this one http://www.donkeypunchperformance.com/store/index.php?main_page=index&cPath=66&zenid=c6239f1c3f51886edaadb5a1f53472c8

it is the same dia, but it is fluted and polished i did that to my 3.4 DOHC and the diff was very noticable on top end! hey if you have a JY around, if they have both engines, try it. just pull both tb's and take a look.

[Canada]

A 3800 TB won't work.....at least, it won't bolt up.

 

You won't make anymore power with a TB anyways......I don't know if you have anything else done or not, but a UDP or CAI would be a lot better.

[z34Phoenix]

canada has it right! i would say do a UD pulley an engine mount a cold air intake then i would worry about the TB. but if your spending about 200+ i would say look into exhaust. that is the biggest bang for the buck, just after a new C.A.I. UDP are cheep too, but they might affect the water pump and alt output.

 

if you were in a warm climate, i would say do a coolent bypass on the TB but if your in a cold area it would be safer to leave the coolent in the tb. it is there to reduce the risk of ice on the TB from forming.

 

yeah, but the best way to organize mods it CAI, exhaust, UDP, engine mounts, TB and Intake manifold port and polish.

[Cam'ron]

exhaust isnt an issue... i have a 3" magnaflow cat back system on my car... first thing i did

 

i have been looking into a CAI but i am not sure i can do much better than the location of where it is right now i am thinking of experimenting with some different ideas of modding the stock airbox maybe having it suck from the bottom or something... i dunno it is in the works

 

sorry for a stupid question but i always thought that an UDP was for the SC engines, sounds as if i am wrong on that one, what is it a crank pulley?

 

i have been looking into engine mounts and dogbones a little they sound like a good idea...

 

and the ported intake manifold sounds kewl, is the one at donkeypunch a new intake for 90 bucks or is that what htey charge to port and polish your intake for you.

 

sorry its so long i just didnt feel like responding 6 times

[z34Phoenix]

np

there is much to gain from doing a CAI the point is useing a cone filter alows more air into the engine. if you try and modify the stock box, you are going to be limited by the filter surface area. fender well intakes are pretty easy. i have a how to on my WWW on pg 6

 

yes the UDP is a pulley for the crank. some people have even fabed up and or started group buys for atl and other acc pulleys.

 

for the intakes, they want 75 +90 for the intakes. 75 is refundable once you send them back your originals or you can send them your piece and wait and not pay the 75. i would just say pay the 75 so your car isnt down while the intake is getting done.

 

again I fluted my TB and P&P my upper manifold for my dohc. and the diff has to be atleast 10 hp if not more. i love it. and it makes me more proud cause i did it myself.

[Cam'ron]

i would assume the UDP slows the belt system? what is the effect of that, how much diference does it make and is there any negative effect of it say in cold climate?

 

are any of the CAI's listed in the group buy thread compatible for the 3rd gen 3.4L engines, nothing is listed for really anyhting post 96-97ish

[TeeJay3800]

... for the 3rd gen 3.4L engines ...

Sorry this is way off topic, but for future reference, you're much better off referring to your engine as the "3400". When people see "3.4", they immediately think the LQ1 DOHC.

[Cam'ron]

awww cmon 3.4 is soooo much easier to type .... and AFAIK there isnt a DOHC available on the new montes anyways or is there???

[TeeJay3800]

Not that I know of...

 

LQ1 was dropped in '98-ish and the new DOHC motors weren't offered in the Monte IIRC.

 

I was just saying that on this board "3.4" refers to the LQ1, where as "3400" refers to your motor. Just trying to make it easier for you...

[Cam'ron]

i kinda figgured that..... man now i shoud go back to all my old posts where i saud 3.4 SFI in stead of 3400 and change it maybe i will get some answers.... or maybe not....

 

oh well back to the CAI who knows of one available for the 3400 that doesnt require extensive modification... the reason i have been thinking baout doing something to the stock box is becasue i have an extra one that i can always put back in if i screw one up

[Cam'ron]

i know this states 3.8L only but what is stopping this from working with my 3400

 

http://www.pfyc.com/store/merchant.mv?Screen=PROD&Store_Code=PFYC&Product_Code=WB3002&Product_Count=13&Category_Code=MCUNDER

 

this is something that kinda bugs me about the 3400, just about every add on part i have ever looked up says it is for the 3.8L

[sl3196]

You check ebay? My friend got one off there for his 3400 alero. It is a full fenderwell not one of those hot air intakes.

 

 

 

BTW: Your monte is a 2nd gen durrrrrrrrr............

[Cam'ron]

could have sworn it was a 3rd gen

 

ebay intakes piss me off... BIN for 4 bucks and pay only 40 shipping to canada

havent seen a fenderwell intake yet.

[Canada]

Tranzgenic offered to make CAIs for the W body world.........but everyone here chased them away.

[z34Phoenix]

i have a write up for 5th gen monte's on how to make a FWI yourself. just look into it. you could just look at your engine and modify the design for your car. i wouldnt do that hot air intake that you posted your link too. it will make more sound, but you may endup loosing power due to the higher temp air from engine bay.

 

a 3800, 3100, 3400 intake will work though.

 

and yes 3.4L is normally assumed to be my engine the 3.4 dohc LQ1 besides its just one more key to press.

 

oh by the way, my write up is on pg 6 of my WWW.