Choosing A Cam...In Need Of Advice

[911_fan]

The gains may sound overexaggerated, but I can personally attest to them. I haven't had my car dyno'd (ever) but I saw very significant power gains over ~3400rpm. .

What you are feeling is the ignition advancing more than 16* BTDC. All chipped cars feel like that.

With the mods you have now (intake, exhaust, tune), and depending on the dyno type used, dont expect anything too much.

Also, what is this "USRT throttle body spacer" you are referring to?

[02vwgolf]

Also, what is this "USRT throttle body spacer" you are referring to?

Yeah Im not sure what he meant by that either, after I read it I went right on their website but couldnt find it??

[911_fan]

All I saw was the meth injection plate.

BTW OP...if you are thinking a throttle body spacer is going to have the same tq effect a carburetor spacer has on a V8, you are mistaken.

[CITYSLIKR]

All I saw was the meth injection plate.

BTW OP...if you are thinking a throttle body spacer is going to have the same tq effect a carburetor spacer has on a V8, you are mistaken.

Correct, it is the injection plate, but they supply a plug if you don't plan on running water/meth. And I don't expect it to have an effect anything like a carburator spacer, but it does allow for more air to enter the combustion chamber for a more effective/efficient air/fuel mixture.

[911_fan]

Yea...no it doesn't.

Its a spacer to mount a pre-TB injector for a water/meth injection set-up.

That's it.

[CITYSLIKR]

Yea...no it doesn't.

Its a spacer to mount a pre-TB injector for a water/meth injection set-up.

That's it.

Alright man I'll take your advice on that...gonna save me a couple bucks at least.

[911_fan]

Spacers work on carb'd engines because the spacer acts like a ram pipe between the manifold and carb effectively building velocity and helping further atomize the A/F mix. It increases torque in that application.

It wont do that in your application. If you want more air to enter the head, step up to an SRI/LRI manifold. Or add boost.

[CITYSLIKR]

Spacers work on carb'd engines because the spacer acts like a ram pipe between the manifold and carb effectively building velocity and helping further atomize the A/F mix. It increases torque in that application.

It wont do that in your application. If you want more air to enter the head, step up to an SRI/LRI manifold. Or add boost.

This is going to be a very silly question, but if I were to aggressively thread the inside of the spacer could that essantially create a sort of vortex thus creating a kind of ram effect? Just a shot in the dark. I have good connections with machinists as well, if something could possibly be fabricated.

[911_fan]

no

[CITYSLIKR]

no

Roger that.

[Hurt]

Roger that.

Wow, I have NEVER seen a car like yours before. I think it's pretty neat looking. I'm sorry I can't aid you in choosing a cam/springs that would work in your specific car, but if you happen to need information on a cam or HD springs, I'm your man. I'll gladly help out.

[CITYSLIKR]

Wow, I have NEVER seen a car like yours before. I think it's pretty neat looking. I'm sorry I can't aid you in choosing a cam/springs that would work in your specific car, but if you happen to need information on a cam or HD springs, I'm your man. I'll gladly help out.

I already spoke with a TechTonics rep over the phone and we have determined that my engine will work with any of their cams. I'm thinking of going with either the 270 or the 276, which would both need the HD dual valve spring conversion. I'm also looking into the tuning software before I go ahead with the swap...we'll see how it goes I guess!

Updates to follow!

[amotion578]

I already spoke with a TechTonics rep over the phone and we have determined that my engine will work with any of their cams. I'm thinking of going with either the 270 or the 276, which would both need the HD dual valve spring conversion. I'm also looking into the tuning software before I go ahead with the swap...we'll see how it goes I guess!

Updates to follow!

<--- BEV here. Have been running TT .260* since October 2010. I will confirm that the cam works in the motor, and .260* was a noticeable difference (stock is .212* if I remember right). It's quite a bit cheaper than the .270/.276* route, which is what made me go for the .260*. I believe my shop quoted me another $350 in labor, plus buying the actual HD springs.

In the end, I decided to stay with the .260* and I'm happy with it. I'm no racecar, but I'm not nearly as slow as I was before. Definitely worth it, and TT are great people (I went to their shop and got a GIAC stage 1 flash after putting in the cam). Whatever you go with, as long as you have the supporting mods you'll have a ton of fun with it. I actually have enough power to pass trucks on the uphill now with people in my car!

[Hurt]

I already spoke with a TechTonics rep over the phone and we have determined that my engine will work with any of their cams. I'm thinking of going with either the 270 or the 276, which would both need the HD dual valve spring conversion. I'm also looking into the tuning software before I go ahead with the swap...we'll see how it goes I guess!

Updates to follow!

Awesome.

Take my advice and go with the 276* cam. It'll give you ATLEAST 5hp more than the 270, pull harder, and you will not lose low end grunt. You'll need HD valve springs either way, might as well get the most power possible, right? You already have a 2.5" exhaust, so your engine will be breathing well. I LOVE the 276* TT cam. Absolutely love it. Power from 2500-7000 RPM, and enough grunt to pull through corners at low speed. Trust me, it's a great cam! I went from a 266* cam (similar to the autotech 270) in my old GTI to a 276*, and I was amazed at the difference.. TT =

Overall, go with TT. They are a GREAT company, back up their products, and you won't be disappointed. They go above and beyond to help their customers.