T3 rampage

[30 PSI SHADOW]

Ok, I guess a car is NEVER done. Might as well start my "what turbo do I go with" talk. Presently I'm using a turbonetics super 50 trim stage 2. Head is being ported with stage 2 cams. I'm thinking of going to the stage 3 turbo. Or other suggestions?

[Directconnection]

Hey Bill, I'm sure some will tell you a 50trim works really good for a T-III (look at what Pat's done with his heavier P-body) and I believe you'll find you have much more left in your's. I feel you need to tell us what your goals are with your Rampage... and what spool characteristics is acceptable to you. I choose my 6262 based off of Larry's 6152 results (hp and spool) but that would be quite a bit of sacrifice on the street for a lot of people. I never researched the turbo Carroll went with, but I would bet it will easily put out the HP #s you seek (500+), and spool sooner than mine...

[86seeS]

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[Pat]

Hey Bill, I'm sure some will tell you a 50trim works really good for a T-III (look at what Pat's done with his heavier P-body) and I believe you'll find you have much more left in your's. I feel you need to tell us what your goals are with your Rampage... and what spool characteristics is acceptable to you. I choose my 6262 based off of Larry's 6152 results (hp and spool) but that would be quite a bit of sacrifice on the street for a lot of people. I never researched the turbo Carroll went with, but I would bet it will easily put out the HP #s you seek (500+), and spool sooner than mine...

Carroll went with a 5857.

[turbovanman²]

I like the GT35R, HE351 is good for 500+ whp, but agreed with others, what are you goals? 50 trim can go quite a ways. I would go with the stage III wheel, too laggy but then for a light car light yours, might be a better option, hehe,

[30 PSI SHADOW]

I liked the spool of the stage 2. But I'd be ok with a little loss if top end improved. What's the difference from a stage 3 and and gt30 or gt35?

[Pat]

A stage 3 turbine is not that laggy on a 50 trim. That's what I've been running on my T-III and it's been great.

I like the GT35R, HE351 is good for 500+ whp, but agreed with others, what are you goals? 50 trim can go quite a ways. I would go with the stage III wheel, too laggy but then for a light car light yours, might be a better option, hehe,

[30 PSI SHADOW]

I'll be honest I'd like to make more power on less boost( who doesn't) the car is light and getting lighter. Goals? 350whp on less than 20psi

[Reaper1]

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[30 PSI SHADOW]

well im leaning pat toward the stage 3 but if someone can convince me of a better choice im listening..

[cordes]

I can't disagree with anything that's been said at all. I'm sure it will be efficient with a good port job and new cams once the tune is good.

[turbovanman²]

A stage 3 turbine is not that laggy on a 50 trim. That's what I've been running on my T-III and it's been great.

It is with an auto, so if Bills car is an auto, it will have more lag unless he puts on the .48 housing.

I'll be honest I'd like to make more power on less boost( who doesn't) the car is light and getting lighter. Goals? 350whp on less than 20psi

I made 330 whp on my auto TIII at 22/23 psi with stock cams, mild head, plugged cat, no tuning, bad tps with my GT35R, so its doable with that turbo or something similar. With the cams and porting, you should be able to do it no problem.

well im leaning pat toward the stage 3 but if someone can convince me of a better choice im listening..

GT30R is too small, maybe Jackson will chime in on how much his cars make with the HE351 and mild cams.

[Turbo3Iroc]

If efficiency is your goal I would look more into the modern turbos. 350 at 20 psi isnt out of reach but at what sacrifice? (lag)

[Pat]

If efficiency is your goal I would look more into the modern turbos. 350 at 20 psi isnt out of reach but at what sacrifice? (lag)

I agree with Kelly. The 50 trims are great turbos, but there is so much new stuff out there it's hard not to consider something else. You should talk to Carroll about his Precision 5857. I've ridden in his car and lag was not an issue at all. Felt as good if not better than the 50 trim I've been running.

[30 PSI SHADOW]

at what cost? I take it the modern turbos start getting into 4 figures right?

[Juggy]

I'll be honest I'd like to make more power on less boost( who doesn't) the car is light and getting lighter. Goals? 350whp on less than 20psi

a local made 330/350 in his old r/t. the only mods done to the car was a 3" exhaust, FMIC, t3/t4 50 trim with stage 3 exhaust wheel (.60/.63) and a custom cal

btw, that was only on 16 psi boost

so if u consider the amount of boost to HP, it spooled rather quickly!

if you got the cash, i would seriously check out the GTX series turbos......the GTX3076R can whip out 650whp, with the addition of a billet comp wheel, using the original gt3076r turbine. that means this turbo can make as much HP as a GT35R and spool like a GT30R

[Pat]

at what cost? I take it the modern turbos start getting into 4 figures right?

Precision billet turbos are in the $800-875 range with journal bearings.

a local made 330/350 in his old r/t. the only mods done to the car was a 3" exhaust, FMIC, t3/t4 50 trim with stage 3 exhaust wheel (.60/.63) and a custom cal

btw, that was only on 16 psi boost

so if u consider the amount of boost to HP, it spooled rather quickly!

if you got the cash, i would seriously check out the GTX series turbos......the GTX3076R can whip out 650whp, with the addition of a billet comp wheel, using the original gt3076r turbine. that means this turbo can make as much HP as a GT35R and spool like a GT30R

330/350 are nice dyno numbers, but what kind of trap speed did it run? Those numbers seem awful high for that boost level. And we all know dynos can throw very different numbers.

My best guess for you Bill is that a 50 trim is going to do just fine for you if you're looking for a legit 350 at the wheels (by track times). Your stage II would do it, but you'll probably free up the top end a bit more with a stage III. I'd run what you already have and see how it goes. Get the combo right and I think you'll be very happy.

What intercooler are you running? Do you have an ET/trap speed goal in mind?

[Juggy]

Precision billet turbos are in the $800-875 range with journal bearings.



330/350 are nice dyno numbers, but what kind of trap speed did it run? Those numbers seem awful high for that boost level. And we all know dynos can throw very different numbers.

My best guess for you Bill is that a 50 trim is going to do just fine for you if you're looking for a legit 350 at the wheels (by track times). Your stage II would do it, but you'll probably free up the top end a bit more with a stage III. I'd run what you already have and see how it goes. Get the combo right and I think you'll be very happy.

What intercooler are you running? Do you have an ET/trap speed goal in mind?

full weight daytona r/t 107-108mph.....it was a mid-high 13 second car on street meats.
yes the journal bearing ones seem to run about 2/3 the price of a ball bearing.
in an all out drag setup, there is no real benefit to the ball bearing, performance wise. but transient response is definitely noticeably better when it comes to road racing

[30 PSI SHADOW]

. that means this turbo can make as much HP as a GT35R and spool like a GT30R [/QUOTE]

being a 5 speed and with the fact that i might start autocrossing and road racing, spool is a main factor.Since a Cage is not an option on my rampage(gets goofy looking) im almost where i want to be in drag racing(mid to low 11s) But who doesnt like all out power? I might look into the percision turbos pat( got good links?), as the price is right, but i would like open the top end more as im porting the head. I agree dyno #s are purely speculative, A 125-128mph trap would make me happier than hell!
Links and sources are nice, and thanks for all the advice! theres so much now to turbos than before im learning!

---------- Post added at 11:29 AM ---------- Previous post was at 11:27 AM ----------

intercooler 24x12x4

---------- Post added at 11:34 AM ---------- Previous post was at 11:29 AM ----------

forgot to add, i need to stay with an internal wastegate. i like the atp swingvalve setup i have.

[30 PSI SHADOW]

interesting.. whats the difference between the sc60 and the sc58? is this like carrolls?

Precision SC5857SP Billet Turbo NEW SC60 58mm T3 T4 PTE | eBay