CompCams Xtreme Cam
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
TPI likes to have a 112 or 114 LSA and the Xtreme Energy cams are ground on a 110 LSA BUT you can have ANY cam that comp makes ground on to a 112 or 114 LSA for a price! I'm gonna get an XE262 cam ground on a 112 or 114 LSA for my 355 TPI engine!!
Joined: Feb 2000
Posts: 1,855
Likes: 13
From: St. Augustine, FL
Car: 89 GTA
Engine: 383
Transmission: 4L80E
Axle/Gears: 12 bolt-3.73
If you get a custom chip burned, it doesn't matter what cam you use, the chip will be tailored to the motor.
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by 89gta383:
If you get a custom chip burned, it doesn't matter what cam you use, the chip will be tailored to the motor.</font>
If you get a custom chip burned, it doesn't matter what cam you use, the chip will be tailored to the motor.</font>
Now the advantage I see to going that route rather than buying the 222/228 compu cam is that the compu cam runs 1800-5800 RPMs so you would need at least a 2000 rpm stall! The XE262 on the other hand runs 1300-5600 RPMS so no stall will be needed therefore saving you money....especially if you have a 700R4 because those stalls cost a pretty penny compared to the TH350 stalls!! Also, TPI produces a lot of low end torque and cuts off earlier than most carbed engines so I see the 1300-5600 as another advantage because you're getting power and low-end torque all at the same time and on a TPI engine you probably won't get over 5600 RPMS very often anyway and if you do I wouldn't hold it there long!

Just my theory there! We'll see the theory in motion soon hopefully!!

Trending Topics
Guest
Posts: n/a
I'll second that, you can use whatever cam you want if you use a custom chip. A cam with 224 duration on the intake side will work with the stock chip and stuff though, although I wouldnt advise it. You can get much better driveability and power with a custom chip at that point.
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by camaro6spd:
how much are chips??
-Tom</font>
how much are chips??
-Tom</font>
Well I'm sure everyone else will recommend learning to burn your own to save a little money but if you don't have the patience, like me, then you can go the "pre-burned" route!!
Ed Wright will actually burn a "custom" chip specifically for your car for $350! BUT you can also buy "pre-burned" Ed Wright custom chips for $159 which is the route that I'm going since the cam isn't that large!! The website is http://www.fastchip.com and the chip even comes with a guarantee!!
Supreme Member
Joined: Apr 2000
Posts: 1,338
Likes: 0
From: Chander, Arizona USA
Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
what needs to be pointed out here is there is no magic number for cams. the larger cubic inch engines such as 350, 377, 383, 406, etc., allow for larger cams than smaller just from amount of air coming in. installing a stock LT1 cam isn't much of an improvement. they only worked ok in an LT1 due to the intake design matching the cam better than a tpi set up. as for the 305 that went slower with the larger cam, you need to see just how much of a difference you went. with that much of a cam change, your going to have to get more fuel in there along with it and some other area's capable of flowing the air the cam move's. another thing to consider is compression. more compression means more cam. an 11.0 to one engine will respond to a 230@.050 as a 9.5 to one will respond to a 220@.050. it's all about a whole combination of parts. you can't just stab a large cam in a stock engine and expect a miracle and a built engine with too small a cam gets bad results also. speed density engines can be a bit more sensitive due to vacuum readings, but can be tuned to work just fine without a complete change of system.
Thread
Thread Starter
Forum
Replies
Last Post






