Thread: This build

dump the M90 and get a whipple charger!

yeah, cause those are nice and cheap.

Originally Posted by Swiggles

i love my xp build. i currently have stock heads but will be get stage 3s soon enough. theres plenty of power!

you should look into a trans too while you at it.

I have an XP cam setup already at my house. but i was thinking of getting a better cam... not 100% sure yet if i should keep the XP or move on to something with more power.

How does the XP Cam Vs the S1x compare? HP,TQ,MPG

Originally Posted by Z34Phoenix

dump the M90 and get a whipple charger!

I just got a GEN V. I'm not going to a whipple on this car. this build is centered around the GEN V.

Originally Posted by Spartan GL

How does the XP Cam Vs the S1x compare? HP,TQ,MPG.

Honestly if your asking those I don't think a cam route is the way you should be going as long as you've been around.

Money is no object for Spartan, for he hath riches of a thousand plunders.

Yet he's worried about mpg's.

Originally Posted by realdiehl

Money is no object for Spartan, for he hath riches of a thousand plunders.

Yet he's worried about mpg's.

Doesnt mean i want to have to fill the ****er up every few days!

but i just read the two threads on the S1X VS XP. Debate..

Midrange vs Top End power................

I kinda wanna get the S1x cam... but seeing as i already at my house uninstalled have the XP cam and supporting springs/chain/retainers i think i should stick with that

So now the question is should i still buy Heads & fuel injectors/rails? or just stick with the I/C, GEN V, & XP Cam, 2.8 Pulley.

I'd skip on the aluminum heads if you have a decent machine shop around you.

I've dealt with a lot of S1X and XP's. They are so close that it really comes down to tune, driver etc. It's nearly the same cam in the end.

If you have an XP and think you might want to go bigger later on, consider keeping your eyes open for rockers. 1.7's are common to see on top, and 1.8's have been done as well. This retains the cam profile that is streetable and yet increases lift etc for more power.

IS3 + 1.95's?

LOL

S1X + 1.8's is more lift than S3X + 1.7's.

E85 gets no mention yet? I could see there not being a lot of fill up stations in Florida i guess...

Are 1.84's and a S1X or other cam do able or is 1.8 the limit with a cam? Also, seen you guys say the diamond forged pistons are a waste of money. What's the WHP limits of the stock pistons. I know the powered rods in the L32 are better. I heard the pistons in the L32's can handle a little more power than the L67 pistons.

we dont know the WHP limits...no one has ever hit them.

Reason I asked, some of the vendors have told me limits of 400 whp for the L67 pistons and 500 whp for the L32 pistons. And .600" even? Looks like 1.84s and a S1X would put me at .605".

Intense sells a double spring kit for $500, ouch that says it supports up to .650" lift. What's the max lift recommended for a DD? Yeah, was worried about the timing chain and roller lifters having too much stress. Trying to build my Regal for DD and the GTP for weekender / sometimes DD.

I DD'd an XP for quite some time...I wouldn't even think about DD'ing my Thrasher cammed car with 130's & a Double Roller.

Originally Posted by bluegtp91

I DD'd an XP for quite some time...I wouldn't even think about DD'ing my Thrasher cammed car with 130's & a Double Roller.

What rockers do you run with the XP? I'm figuring for a moderate cam (basically not a S4X or XPZ), but higher ratio rockers so I don't only have top end power. I've been looking at a VS, XP, S1X, or S2X cam.

VS, XP, and S1x youre only going to want to run 1.7s with it.