Okay guys, ive been beating my head on the wall for about 2 weeks now trying to develop a plan to make some numbers with the TPI and while I am absolutly in love with the idea of a S/C TPI setup (NASTY TORQUE!) I just am not up for the $7000+ it would take to do it...yet (Too many projects lol) . For now I am looking at a Holley Stealth Ram setup to fix my torque curve. Seems like up here at 5,000 feet this 350 TPI falls FLAT on it face HARD at 4500, probably because of the air being so thin and the TPI having so much trouble even at good altitudes.

My question is what do I need to go through to install the HSR on my GTA? Which parts do I need to buy? I was reading about having to use a 58mm TB is that true? Just want to make sure I dont repeat anyone elses mistakes haha. Thanks everyone!

BTW: im going to be dynoing the TPI as stock and then with the intake so when I have the numbers I will post up!

 

Visit www.stealthram.com and you'll get all the info you need. It has the hp results from the switch and a parts list and price.

 

Are you still running stock heads and cam??? .....I can't imagine any combo using stock heads and cam that would even come close to needing anything more than the stock 48mm TB. Well, maybe supercharging.

I'd seriously look at head, cam, exhaust, shiftkit/torque converter before going with the intake swap.

Also, if ya do go HSR, I think you need to modify your hood to clear it.

 

Yep...hood needs modifying. Here is a list.
Cost to swap

This is a bare minimum cost to swap from the TPI to the HSR.

Stealth Ram manifold #7540 (summit racing) $299.95
Fuel rail kit w/regulator #534-186 (summit racing) $215.39
Fuel line kit $119.99
Water neck MrGasket #2661 $13.99
Flex hose upper radiator Advance Auto 12228 $10.65
Intake gasket $12.99
Antifreeze (1 gallon) $7.99
Permatex Blue Silicone $3.99
5/8" hose barb for heater hose 1/2" thread $2.99
Total $687.93

 

Hey Yenko I saw that same list on the HSR website but what do they mean for the Fuel Line Kit?

And Abubaca yeah im all stock, I didnt really feel like tearing into the heads just yet. I have another project thats sucking up that kinda cash. The HSR was just my idea on making some more power along with an exhaust (Hooker Longtubes and a Super Comp Cat-back) cam and RRs. I also wanted to upgrade my oil system to save some power there especially if im going to up the RPM on that motor.

 

You can't use stock TPI fuel lines, so they provide a kit, but it's seperate. Meaning it's NOT included when you buy the manifold.

Be REAL careful when you say you want the HSR to make more power. On a dyno, you'll see a higher "peak" power number, but it'll lose power almost everywhere below the curve when compared to the TPI.

Now if you DO go with heads, cam, etc. etc. etc., then it's a different story.

 

Those fuel line kits are BS. You need two adapters to change saginaw to -6AN ($10 for both). Then 5 feet of braided lines and four -6AN fittings. I did it for about $40 for everything.

 

Yea...what the previous two said is about the truth....you can do a DIY lines for about $50 bucks if that. I did mine with SS fittings and SS braided line.

 

The fuel line kit isn't BS. To someone who's never put together fuel lines, and tried to figure out A/N fittings, it's well worth it. Sure once you've done it, it seems easy, but it's not a bad idea.

Everyone is good at something, but needs help with something else.

 

This was the first time I've ever worked with -AN lines, it's not difficult. Cut, clean, tighten. It's been done many times, all the fitting sizes are posted throughout the internet.