aklim

Find a TB that is the best priced. I would not reuse the stock one but either Holley or say Accel.

CamaroStylin

so it's agreed that the HSR can be installed with nothing more than buying the intake and the fuel rail? the stock TPI intake manifold will work fine?

what sort of computer work actually needs to be done. i dont quite understand what that does for the system.

aklim

I believe it has it's own manifold that comes with.

You would need to take the EPROM out to have it reprogrammed for optimum performence.

CamaroStylin

i understand that it comes with an intake manifold, because the whole kit itself is designed to completely cover the intake system of the engine (except the heads), but if I'm converting an engine that's already got a TPI system on it, I think I can use the TPI intake manifold. that's what it sounds like anyway. is that right everyone?

mrr23

no you cannot reuse the stock TPI intake with the HSR. the HSR is a plenum and base. if you have TPI now, you'll reuse your injectors, sensors, TB, wiring harness. you'll be replacing the plenum, runners, and base with the HSR. you must use a smal lcap distributor. so, if your car is 85-86, you'll need to get a distributor also. and thanks for visiting my site. www.stealthram.com feel free to sign up and ask your questions there also.

nape

Nope. The Stealth Ram uses an old tunnel ram base [which is why it doesn't pass emissions] and a bolt on plenum at the top.

You must remove the entire TPI intake - runners, plenum, and base.

mrr23

it won't pass a visual inspection. but mike davis passed maryland emmisions with it.

aklim

If they stick a tailpipe sniffer, you will be fine. If they look for the EGR, you are screwed. Stick on a EGR on it with double sided tape and hope no one notices.

CamaroStylin

mrr23, your site is awesome. the parts list only tells you to get the intake system and the fuel rail. does the "intake" for 299 come with the runners and plentum and all that stuff?

mrr23

ok have you seen the pic of the HSR? it's right there on the site. the runners are part of the base.
this is what you get for $299.00 just not polished http://holley.com/HiOctn/ProdLine/Pr...SM/f7540P.html

CamaroStylin

oh i see, the intake manifold is part of the base... gotcha. thanks bud! have you done this conversion yourself?

mrr23

yes. i own www.stealthram.com the costs associated with the swap on the main page is what it cost me to do the swap. the dyno results off the main page is from my motor.

CamaroStylin

anybody know where in the rpm range the L98 spends most of it's time of residence on the drag strip?
i went to your site, mrr23, and i looked at the dyno graph for that camaro that shows the difference between the tpi and hsr intake and I'm questioning it's ability to help the engine at low RPM. it looks like it hurts it just as much in the low end as it does in the top end

mrr23

ok if you are refering my graph, you didn't read it all. look at the a/f graph. just by swapping the intakes, the a/f went way lean. there was no tuning to the HSR at all. if i spent time doing PROM tuning there would've been more gain. you spend all your time above 3000 rpm when racing. shifting at 5200, my tach would drop to 3100ish. i gained .1 in the quarter just by swapping the intakes. with tuning there would be more. look at the whole picture. i drive this car everyday. you don't notice the 30 lbs-ft of tq. my 60ft dropped by .1 but i gained .1 in the quarter. with the 150 n2o i gained .3 over the TPI setup. plus you have to remember that TPI set up is a fully siamesed SLP runners and edelbrock intake.

with the TPI, i shifted at 4800. with the HSR, i now shift at 5200. and the only reason why i shift there is because the zz4 craps out right there.

CamaroStylin

ok, so i've got a desktop dyno setup now that uses a tunnel ram intake and has a peak hp of 501 @ 6500 i think
just because that seems a little high, we'll say I'm expecting 450hp. with 450hp what could i do to the suspension to land me in the 12.5 range? I noticed from your conversation that you spend a lot of time track tuning and running, so i figured you'd be the best to ask.
there's a guy that my auto instructor knows who took an 80s mustang 5.0 (not that great of a car) and didnt do any engine mods, but he did suspension work for the track and the car ran 12.5 all day long with that stock engine, tranny and rear end in it. I wanna know how i can get my piece of that pie