tpi questions

[WMCCjames]

OMG that BBK system is butt ugly. I can see that selling well...not.

[jakes_GSXR]

im betting it will cost upwards of 750 bucks, then youd need the bigger TB, so youd spend over a grand into this setup.
im excited and everything, but not to see the prices.

[jakes_GSXR]

Damn im good.
Hear its 700 bones for that BBK over on TGO.
The price for used slp, accel and other tpi runners, pleneums or ported goods if F***ing ridiculous when you look on ebay. Half the stuff is in crappy condition and selling at retail prices. The best way to go is buy a complete system if your staying with TPI.

I was thinking if I bought an air compressor and the tools needed to port, all the money I saved porting the pleneum runners and intake myself would have paid for the tools....

[MP81]

I'm tempted to port my plenum...

...they have articles on TGO - maybe grab my dremel and have some fun!

[Iroc'nthe87]

We'll make it a dremel party than!

[WMCCjames]

Dremels are useless for that type of work, you need some real horsepower. Either a 3-5amp electric grinder or a pnuematic die grinder with a single cut burr...carbide is nice but not rquired on aluminum...you will also need a good cutting fluid to to keep the chips from plugging up the burr...WD40 works good but there are better options if you get serious, let me know and I can point you in the right direction.

[tenpin842]

Yeah after you get what James told you to get. Then get yourself some high flow gaskets. Then you can see everything you can port and get rid of.

[dboersma]

I've got an 87 5.7 tpi stock with 31,000 original miles. It will destroy most cars off the line and rip the tires loose going into second gear. TPI motors are all about instant gratification - but they don't keep it up above midrange. The 5.7 TPI is factory rated at 225hp and 330 lbs-ft of torque.


But if you do some small swaps: Comp cam, Hooker headers, and a chip the L98 is capable of about 330 hp and 400 lbs-ft of torque. and remain very streetable.

Then if you add in larger runners, larger injectors, and port job on the heads... who knows?

I had mine at a test and tune in Milan Last year for the heck of it... With MT slicks... I ran 13.98 at 102.5 mph... not bad for a 21 year old stock IROC-Z....

The car handles great and is a blast to drive - I'd say you'd be happy with an L98 for the time being.

[MP81]

I've got an 87 5.7 tpi stock with 31,000 original miles. It will destroy most cars off the line and rip the tires loose going into second gear.

When I test drove the '88 IROC that was sold out from under me (had the 350), it did that.

My 305 doesn't.

[tenpin842]

I like my 305 for what it is. Great running motor. I love the cam I installed.
The stock car had 190 @ 4000 and 295 @ 3200 ......but not anymore.

[lozanoa11]

well ive been looking into them and they seem like they have a lot of potential with a lt1 intake and other mods. then stroke it and you have a pretty stout engine

[MP81]

How hard was it to get that cam in there? Now that I have this cutout, I'm tempted to cam it.

Did you do it in car?

I remember Car Craft (Maybe Chevy High Performance) did a cam swap on the third-gen 'maro, and I remember them removing the radiator, but I can't remember what else they did.

[WMCCjames]

Doing a cam swap on a 3rd gen in the vehicle isn't too bad.....you have to remove the rad and A/C condensor if you have it. Also you have to remove the 2 cross-braces in the rad support (4 bolts) Then you will have enough room to slide the cam all the way out.

[tenpin842]

yupper.

[lozanoa11]

oh yea would be much easer than a fourth gen