I have a set of ARF 205's, milled to 59cc. A G5X3 cam, and fast 90 intake. 7.4 pushrods, cometic head gaskets, Halltech Stinger, and LG Pro Long Tubes. This is all on a 2000 FRC by the way.

Now, should I do the underive pulleys?

Lifters?

Injectors?

When I get the install done. If so what should I go with?

For fun, what y'all think I should expect at the wheel with this?



TIA God SPeed, Doc....

 

I would do the underdrive pulley. when you replace a camshaft the right way is to replace the lifters along with the springs,pushrods. While your in there I would also replace the valve seals.
More than likely you will have to replace the injectors so they can perform. The stock ones might be close to maxing out.


I can see you making anywhere from 425+RWHP with a good tune.

 

Thanks for the reply.

By springs I assume you mean valve springs? If so the springs are new, as they are a new set of heads..

Most of the threads I read never mention changing the lifters or injectors. That is why I am asking. And if they do, what do the change them out to?

God Speed, Doc....

 

Yes to all of the above. I went with the G5X1-E cam, comp R lifters, SVO 30's and Powerbond UD pulley.

-Rick

Oh, BTW - I ended up with 470/436 (my FAST 90/LS2 are ported, I'd expect you to be near or above that with your cam.)

 

 

Looks like a great, proven combination you've chosen. I'd say about 460-475 to the wheels. Definately get the UD pulley while you're in there anyway. The stockers have been known to fail. I've got the Powerbond %25. It's a good idea to replace your lifters as well. The new GM replacements are a slight upgrade, but I went with the Cadillac racing ones. They're about $200, but supposedly good to 8500 rpms. I see you're planning on Cometic gaskets. I assume it's one of the thinner ones, such as .040. With the 59cc heads, you're going to have lots of compression, so a good tune is vital, as is decent fuel. I hope you have at least 92 oct. where you live. Injectors are not absolutely essential, but SVO #30s are pretty much the standard upgrade for your combo. Good luck, and have fun. Are you planning on doing the install yourself? It's quite an experience.

 

yeah do the pulley...

youll need 30lb injectors too

 

Install new lifters while you are in there - use the caddy racing lifters - but order them now since I understand they were backordered about a month a while ago, so you might have to wait for them

Also do the underdrive pulley while you are in there - not worth doing an underdrive pulley by itself, but since you are in the area, do it now.

injector wise, I'm not the expert - I did essentially the same upgrades on mine recently (just finishing up), BUT I did NOT install the fast 90 intake - I've always heard that the stock injectors are fine, and that they are easy to change in the future if you need to so, I'm listening for injector advice

I'd recommend a hardened left output shaft in your carrier, and I'd also recommend a DTE brace if you don't already have one

 

Hey what's up Doc? (sorry couldn't resist)

I have the same x3 cam and was talking with Tony Mamo from AFR and he does not recomend a thinner then stock head gasket (.054) as he was already concerned that with our .600+ lifts that the piston to valve clearence in his words "is way to close for comfort in my book". He said that Lou from LG has set up the x3 with afr's @ 59cc in the past without problems.

Also the AFRs out of box springs are only good for cams up to .600 lift and that anything over should be upgraded. (they have this stated on thier web site for exact details).


Also the x3 with a ls1 intake, underdrive pulley and a ported Ls1 tb and a ggod tune made 402RWHP so with the fast and a ported ls2tb and the head upgrade you should see 60 - 70 more RWHP.

If you need more info PM me and I can give you my number.

Good Luck

 

I would do the injectors, 30# SVO's would be a good choice.

I would replace the lifters as well, my choice would be the Morel's since they use a larger/better material on the roller wheel and are very precisely machined. They are $500 though, so plan to your budget but want to make you aware they are out there.

I would contact Tony on your setup, he can give you a lot of pointers that will help optimize your setup and he is very helpful.

 

Every time I think I have all the parts I need....

Someone has to go and add more to the list!

I start to think that all this is going to be OK...

And then others say things that make me feel like I am looking for trouble.

I am already out of $$$$, and going over budget as it is! :o

Thanks for the replies though! Keep them coming!

OK another question?
As stated I have a fast 90. Just recieved the LS2 TB. It has only 4 bolt holes?
How can that work? Leaves the upper third of the Fast 90 open!
Did I not get the LS2 TB, or not all of it?

HELP!!!!!!!!!!

This has turned into a TOTAL NIGHTMARE!

Pending Names to mention!

Read here!!! http://forums.corvetteforum.com/show....php?t=1562269

 

Ok, let me help clear things up. I would do an under drive pulley if money permits. Yo are in there already and just buying the parts. You dont need to change the lifter as long as they are in good shape. We rarely have problems with lifters. If you have high mileage (over 75K) I would do a set of LS7 lifters. You dont need new pushrods as well. You should be making over 450 rwhp so you will need 30 pound injectors. Feel free to call me if you have any questions.

 

ohh forgot, the LS2 90 mm throttle works fine with the Fast. the 4 bolts are fine.

 

Hold up your FAST 90. It only has 4 holes to mount the TB too. The 78mm only has 3, so see, you're ahead already! OK, I've got more bad news. Your LS2 TB will possibly cause all sorts of drivability problems. Mine did. I sent the TB to Tony Mamo, and the ported one runs great. This'll cost you a little more $$.

 

They sent me the wrong intake didn't they?
SHIIIIT!!

That is a 78 no?

 

It just never ends!!!

I hate this!

My guess is I am SCREWED at this point!
As while I have been waitng on all the other parts to arrive....... If you checked that forum thread I posted you will understand!

I have spent time removing the LOGOs on the FAST, and painting it!
Allot of work I might add, that is still not done to my likeing, as of yet!

How can a vendor make so many mistakes with an order?

I am to blame for not knowing it was the wrong one I guess? Being new to all this, I never even thought about it being the wrong intake. Looking now I see it is marked on the box as the 540001! Never even crossed my mind that they would send the wrong one. I also, as you can tell at this point, did not know the difference in the look of the two.

But still! The box had been opened, by the vendor, before I got it. It came asembled, along with other parts put in the box, for shipping reasons I would guess?

I just don't know what to do now?

Guess with that piture I posted let the cat out of the bag. Was not intentional. Just noticed it after I posted it.. SORRY!

 

TTT

As I really need input now! LOL!

Live and Learn, or not LEARN in my case I guess? lol

 

ttt

Guess there will be no comments now?

As I let the cat out of the bag...

Thanks for all the help anyway.

It has been informative.

 

So, you've modified the FAST already? Yeppers, it's either go with a ported 78mm TB, or bite the bullet, and sell that FAST, and buy a 90. It should be easy to sell, even if it's not stock looking. You'll take a hit, but _hit happens.

 

You can sell the 78, being new it will sell fast. I just got a 90 from fleabay with intake gaskets brand new for $719.