Acura TSX Forum banner

1 - 20 of 40 Posts

·
Registered
Joined
·
175 Posts
Discussion Starter #1
I talked to a mechanic today about putting in BC stage 2 cams in 05 tsx automatic. He said that putting cams with automatic transmission is not a good idea. The car would Idle High, He Already had experienced this with his buddys car. Is that true ?
 

·
Registered
Joined
·
55 Posts
This is strictly my opinion btw.
The automatic transmission introduces more ways for the motor to lose power to wheels versus a manual transmission. So in my logic, i would build a manual transmission car for power addition to be more effective.
I have thought about adding power for my auto as well. but i think i would start with the reflash and work from there after.
 

·
....its fate....
Joined
·
1,276 Posts
NA on the auto will be fine. Mainly dont want to destroy the tranny but thats mainly from torque though. Upgrade to a better tranny cooler and fluid might be all that u need.
Look in the dyno thread OP. Someone with an 07 AT ran hytech specII cams and 12:1CR and managed 270whp/210tq or something.
Try a different builder and tuner IMO.
Idle should be he same with tuning whether it be auto or manual as i dont think transmission will have anything o do with tuning the idle smoothness..
 

·
Registered
Joined
·
175 Posts
Discussion Starter #5
his garage was full of broken k trannys at and mt.. i gave him my rrc manifold to be ported to 70mm for 125$ to match the 70 mm tb i have. im not looking to build it for power just something better than the stock, vis had mt trannys for 600-700 i think
 

·
Registered
Joined
·
1,666 Posts
im around the 250whp (NA)mark with an AT and no problems yet...except the monster eats tires


I cant really help with your cam question though. Im still running the stock 07 cam at the moment.
 

·
....its fate....
Joined
·
1,276 Posts
his garage was full of broken k trannys at and mt.. i gave him my rrc manifold to be ported to 70mm for 125$ to match the 70 mm tb i have. im not looking to build it for power just something better than the stock, vis had mt trannys for 600-700 i think
If youre not after all out power then why go aftermarket cams??
The you will have smoothe as idle and stock reliability.
IMO just stick to your stock or 06 intake cams, advance your cam timing and good bolt ons = "better than stock'" ... much better i might add. Should net you about 230-250 whp.
 

·
Registered
Joined
·
175 Posts
Discussion Starter #8
I figure cams would be the easiest parts to change for the engine. thats why i figured getting cams intake manifold, and pulleys should be ok and not that much money. I was quoted 400 to swap the cams ( he has to pull the engine ) and another 150 for valve train upgrade . I have a 45* RSx VTC , he said i couldve done the same with a tsx VTC and it would've been better .I also decided to port TB and The RRC manifold to 70mm for 150 for both, and 50$ to put them in. I found a Hondata Tunner In Dracut Ma, after these parts go in im going to him
 

·
....its fate....
Joined
·
1,276 Posts
^ sounds like your build will net u 250whp plus.
What header and exhaust do you have?
I don't know much about Brian crower cams, but most stage 2 need 35 degree plus advance so the rsx vtc would be good.
The idle shouldn't be a problem. Sounds like this will be a great build. Good luck! :)
 

·
Registered
Joined
·
976 Posts
I figure cams would be the easiest parts to change for the engine. thats why i figured getting cams intake manifold, and pulleys should be ok and not that much money. I was quoted 400 to swap the cams ( he has to pull the engine ) and another 150 for valve train upgrade . I have a 45* RSx VTC , he said i couldve done the same with a tsx VTC and it would've been better .I also decided to port TB and The RRC manifold to 70mm for 150 for both, and 50$ to put them in. I found a Hondata Tunner In Dracut Ma, after these parts go in im going to him
Your tuner sounds like a noob. False information all over the board unless your changing info. And stock 06+ cams are good but unless your on high reading dyno, you won't make 240-250whp.. more like 210-220whp and a nice curve. Just like the auto TSX that was mentioned that made 270whp.. that was on Church's Dyno which reads really high. As long as you tune the car properly, stage 2 cams are fine. Stage 2 cams and 50 degree VTC with quality free flowing mods, you will make 250whp without a doubt.
 

·
Registered
Joined
·
862 Posts
I figure cams would be the easiest parts to change for the engine. thats why i figured getting cams intake manifold, and pulleys should be ok and not that much money. I was quoted 400 to swap the cams ( he has to pull the engine ) and another 150 for valve train upgrade . I have a 45* RSx VTC , he said i couldve done the same with a tsx VTC and it would've been better .I also decided to port TB and The RRC manifold to 70mm for 150 for both, and 50$ to put them in. I found a Hondata Tunner In Dracut Ma, after these parts go in im going to him
Sounds like a BS , 400 is a killer price for cams swap, its rather easy to do and you absolutely dont need to pull out the engine.

Valve train upgrade is rather easy too if you have proper instruments, this can be also done with engine in bay.

BC st2 cams pulls really nice at 40 VTC degrees , stock TSX are only capable for 25.

Those cams need to be revved for at least 8k rpms , you need to upgrade your oil pump to rev that high and push cams to work.

You dont need no any porting unless you have crazy setup with huge cams, high CR and revving to 9k, just TL TB and RRC mani, you will gain NOTHING out of this porting , just wasted money.
 

·
Registered
Joined
·
175 Posts
Discussion Starter #12
Monday im getting my car back with the parts installed. He also fixed the Squeaky noises coming from the bushing on the sway bar. VTC from HT, BC stage 2 cams + valve train from xlr8, 70mm ported TB + rrc mani, 2 axles (300$), Ingall camber kit, oil change= $900 . i found a hondata tunner where i live for 500 with dyno time.Pricing
 

·
Registered
Joined
·
1,666 Posts
cams swap, its rather easy to do and you absolutely dont need to pull out the engine.

Those cams need to be revved for at least 8k rpms , you need to upgrade your oil pump to rev that high and push cams to work.

You dont need no any porting unless you have crazy setup with huge cams, high CR and revving to 9k, just TL TB and RRC mani, you will gain NOTHING out of this porting , just wasted money.
2nded...most of the port jobs I have seen done don't justify the cost at those power levels. Unless your forcing air, your basically burning cash.

Sent from my PC36100 using AutoGuide.Com Free App
 

·
Registered
Joined
·
175 Posts
Discussion Starter #14
instead of tl tb would it be the same if i port the tsx's oem ?
 

·
....its fate....
Joined
·
1,276 Posts
Maybe just port match your tsx TB to the RRC IM.
 

·
Registered
Joined
·
862 Posts
No any port job, TB or mani or head porting is absolutely useless for goals below 300hp. Period. All this was tried and documented lots of times and on k20org also. Ma buddy paid 1300 for k20 head followed with tales that it flows huge over k24 head.. something like 6 hp gained ! Dont forget he paid for job and retune. Than he paid 1800 for that head porting and gained something like 8hp on top end and lose few hp on low end. Sigh ! Than he just got a set of cams for 400 bucks and juiced 20hp easily out of em. I got same 23hp out of the good st2 cams without any porting.
Learn the history, dudes, and save your money. Porting is really worth its gains with huge CR , huge cams , huge valves but its not a daily engine at all. Making holes just bigger isnt straight equal for hp gains in NA engines.

And you also dont need to pay that much for tune , go e-tunez dot com and order online tune from Steve or Vit, those guys r full of knowledge and can do the job for 200.
 

·
Registered
Joined
·
1,666 Posts
Now I'm going to sound like a fan boy, but littlebo is right again. You have to have the need to flow that much air and fuel to justify the cost. People have run the 72mm w port match and gain ~5hp and spent more than $100 per HP gained. Unless you have a need for more air its a waste of money. The only way to need more air than the stock 62-64mm tb, is forced induction. Then at that point, maybe you could justify the cost to go larger and port the head, otherwise keep the $ and save for forced.

Sent from my PC36100 using AutoGuide.Com Free App
 

·
Premium Member
Joined
·
2,513 Posts
No any port job, TB or mani or head porting is absolutely useless for goals below 300hp. Period. All this was tried and documented lots of times and on k20org also. Ma buddy paid 1300 for k20 head followed with tales that it flows huge over k24 head.. something like 6 hp gained ! Dont forget he paid for job and retune. Than he paid 1800 for that head porting and gained something like 8hp on top end and lose few hp on low end. Sigh ! Than he just got a set of cams for 400 bucks and juiced 20hp easily out of em. I got same 23hp out of the good st2 cams without any porting.
Learn the history, dudes, and save your money. Porting is really worth its gains with huge CR , huge cams , huge valves but its not a daily engine at all. Making holes just bigger isnt straight equal for hp gains in NA engines.

And you also dont need to pay that much for tune , go e-tunez dot com and order online tune from Steve or Vit, those guys r full of knowledge and can do the job for 200.
I agree with this 100%. If you plan on porting anything you need stage 3 or larger cams to really see and feel the difference, or even vtec killers TBH.

Even on a boosted application porting itself doesnt increase power magically, it increases VE or volumetric efficiency; which essentially means if you have a stock motor at 10psi and you make say 350whp, with a ported head, valve work, port match etc. You can make 350 with only 5psi(just a random example).

If your not racing on a weekend basis, and your car is 99% a street car, porting is not needed, your better off putting that money else where.
 

·
Registered
Joined
·
175 Posts
Discussion Starter #19
i talked to xlr8 i wanted stage 3 cams but he said sens my car is daily driven stage 3 are too aggressive and recommended me stage 2. while i was at the shop i saw this
 

·
....its fate....
Joined
·
1,276 Posts
Don't even think about most stage 3 cams if you're worried about a rough idle.
 
1 - 20 of 40 Posts
Top