Sgt Blamo

iTrader: (1)

So how do like it compared to the stock turbo, is it really noticable in regards to lag? What kit are you running?

Spaceball 1

iTrader: (8)

turbos for the evo are 20glt, 50trim, 3065, 35r, 37r, and so on.

very few people buy the gt30 series and if they go you really dont hear great number pump or race gas, with about the same lag as a gt35r

jbrown

iTrader: (17)

Drifto's manifold is awesome, and scorke's running a 2.3, which is almost a necessity to get a 3076 to make good power on pump gas.

The PeakBoost kit is NOT a twinscroll like Drifto's and a .63 A/R might spool faster, but it will choke up top and you will lose a lot of power where you need it most.

In a drag race you only spool once, but you run up to redline 4 times so the .82 A/R 3076 would be decent, but a 3065 will probably be faster.

In a road race, you need it to spool over and over again, so a 20GLT will probably kick ***, and will be a big gain over a stock VIII turbo.

Where do you want your power?

4cefed

iTrader: (9)

I run a peakboost kit wit there T04R and I love it, i had some leaks that i found and I am putting a VSR,so the car is getting retuned right now , but before She made 373 whp and 313 trq, 22psi by 4400 rpm, if you plan on revving past 8500 on your 2.0 then get a .82, or if you are going to stroke it.

Sgt Blamo

iTrader: (1)

So a twin scroll like an ATP3076 will spool faster than a Peakboost GT30R?

thatguy

iTrader: (5)

Keep us updated on the project.

wroblewskievo

iTrader: (2)

Martin from ams is running a gt30 on his personal car. I think he has a 2.3 stroker though. Ams has one turbo left on their group buy. you can get a kit at a real good price.

jbrown

iTrader: (17)

ATP makes a twin-scroll housing for the GT30 and GT35 series turbos, but their $2400 kit does not include that. It includes a jacked-up turbine housing that makes it spool SLOWER than the PeakBoost kit and makes less power too.

You would need the custom turbine housing and a custom manifold like drifto's to get a true twin-scroll setup.

scorke

iTrader: (18)

Ask 240z about where the lag isnt....


Peak boost on the street at about 3800 rpm in 2nd and it decreases a little bit each gear, between shifts there is no hint of lag what so ever, its back up to full boost so quick there is no obvious delay.

Scorke

Sgt Blamo

iTrader: (1)

Thanks Scorke! is this on 93 or race fuel, and what AR is he using? I presume this is on the PeakBoost GT30R kit w/ thier manifold? If so, that's sweet.

scorke

iTrader: (18)

Thats on c16, i wish it was on pump haha thats 30 psi on vishnu's manifold. The setup is for sale. It makes 395/365 on pump, I ran 20 psi and it made 385/360 on top speeds dyno but i run more than 20 on the street.

Scorke

Sgt Blamo

iTrader: (1)

Scorke,
Sent you a PM. Is that dyno a lower reading dyno, like the Mustang? I'm geussing that I should be making 350whp with all my current mods and my recently added ones (EMS,Carbonatics twin,3.5" exhaust).

jbrown

iTrader: (17)

again, that was on a 2.3, not a 2.0 and no, dynojets are NOT low reading.

And as far as lag is concerned, swap it for an FP Green, and there will be less. Less power as well I admit. I never said the FP Green would make more power, but it WILL spool better.

He said he wants it for street / road racing and without a 2.3 stroker I don't think he'll have very good response from a 3076. If he only races on tracks like Sebring with long straightaways, then maybe he'll be ok, but on any kind of a tight track, he WILL be faster on an FP Green.

scorke

iTrader: (18)

^ I hear what your saying jbrown but in all realness, any GT series turbo unless its a 37R or larger wil womp on the FP Green on a roadcourse. The FPGreen is ideal for autocrossing, but the difference in top end grunt between it and the GT series turbos will be pretty big for the average joe, and on a road course you will spend little to zero time below 4k, which is after peak boost for me.....

The reason why lots of people run turbos like mine on the track is the performance AND the response. The 30R garretts are very quick spooling and responsive turbos.


Scorke

Sgt Blamo

iTrader: (1)

I inquired about the Borg Warner GT30R from SLS, and if I'm correct, this one has the .82AR. Below is the quote of his reply to me pertaining to boost & lag.

"Yes the kits are available and have been for sometime w/ the Garrett
units. we are still doing some testing w/ the Borg Warner units. We did a
local 03 EVO8 w/ the GT3076R, it see's full boost on pump gas 0f 20-22 psi
@ 3800 rpm and on race gas around 3600rpm. That specific setup was stock
motor, cams, intake just bolted on the turbo kit, ran 11.7 on pump gas and
11.3@126 on race gas. Our FMIC cores are also now finished and ready as
well.
Nick
SLS"

Unless he's being extremely disingenuous, then it would appear that these turbos make good boost and power sterting @ 3800-4000 psi and pulling all the way up.
Jason,
While I agree that the 20G9LT is a great turbo and will likely spool faster, it seems that it would run out of steam sooner than the 30 series. it's a tuff decision for me to make and I only want to make it once and be satisfied.
I wonder how the Borg Warner GT30R compares to the peakboost GT30R?