What's the best turbo kit for the street & road racing?
 

I’m looking for the best turbo kit that will give very noticeable performance without adding much lag. My primary usage for the car is street(85%) & road course (15%). I’m wanting to be able to see peak boost occurring between 3500-4000 rpms, not above that.
I’m presently running BC 280/272 cams, Injen intk & UICP, Walbro 255 FP, GFB BOV,
MR wrapped headers & O2 housing, Tanabe 2.75” DP, 3” exhst w/ Magnaflow resonator & muffler, AM FMIC. I’m having an AEM EMS w/ MAP, IAT, boost solenoid & wideband sensor, installed & tuned this week. I don’t really like the idea of running methanol due to the added risk. I want constantly reliable power on demand. I want to keep my car a blast to drive, the idea of having power that begins above 4000 rpms doesn’t excite me.
:usflag:

through some race gas in and keep the stocker, if not get a 50 trim...

Only a stock turbo will hit peak boost in that range unless you're talking about top gear.

IX on alky/meth or a 50-trim...or maybe the 20g-lt...

Hmm, you don't like the idea of alky, then you're out of luck. Not sure why you think alky is not "constantly reliable power on demand." It's constantly reliable power on demand for me...

If you stepped up to a 2.3L you might be able to go as big as a 50 trim, and you might even need race gas since your not into alky. If your on the stock block, and have no plans to change, then check Buschur's 20g-LT.

Those are pretty much your only options if that's the spool your looking for. Unless you only wanna drive in 4th gear, and that's not going to be fun on a road course.

my boost is right there, peak power is a little higher. This is one of the fastest spooling 30r's the faster one would be a .63 a/r instead of my .82

Or you could go w/ a wr or 20 g and gain 20 whp over stock :lol:

https://www.evolutionm.net/forums/sh...61#post3594661

there are MANY turbo kits that produce "stock like" spoolup.

if you're going to keep the 2.0L & don't want much lag, DO NOT go any larger than a GT3037. a good cheap example is ATP's stage 3 "stealth kit" which retains stock manifold & the GT3037S w/ .63A/R is only $2399. if u can stand a little more lag (not much) go w/the GT3071R kit (no addl cost from above).

another option is Trust's (GReddy) TD-06SH 20G kit w/ either an 8,10,14, or 16cm hotside. on the 2.0L i would stay around 10cm. 14cm will produce more lag but have much more topend. even harder to find is the TD-06S w/a 12cm hotside. either of these kits can range from $3500-4400 US. they are not BB turbos, but they last twice as long! both above setups are solid 400-450WHP

Now if you want the ultimate road race/street monster & the perfect balance of everything in between (& most expensive), build a 2.2L!!! pick up a stroker kit from Norris Designs, Cosworth, Tomei, or JUN. now u can run a GT3240 from HKS Kansai, a 25G from GReddy, or a GT35/40 from ATP. the above order is in sequence closest to stock spool but the prices are in the same order are from high to low ($6300-$2600). either of these scenarios are a rock solid 450-550WHP

a little FYI, ND's stroker kits have been track tested WORLDWIDE to rev to 8300RPM all day long without a single hiccup AND combine any of these setups with a MoTeC ECU & add a minimum of 50-100WHP to the above #'s...

www.atpturbo.com
www.trust-power.com
www.norrisdesigns.com
www.hkskansai.co.jp/
www.cosworth.com
www.tomei.co.jp/
www.junauto.co.jp/

It's difficult to imagine any "kit" turbo giving you 24 psi by 3500 rpm without an increase in engine displacement. They say that the 50-Trim is fast spooling, but by that they mean peak boost beginning at "about" 4000 RPM on a stock blocked Evo. So, even a 50-Trim is on the farside of your expressed parameters. I think maybe a 3071 might come close as well( maybe 4200 RPM?). So, you can discard anything larger than one of these two turbos.

This would leave you with the usual list of bolt-on turbos. If cost is no object, and you want the fastest spooling turbo that'll flow significantly more air than a TME 6.5, then you'll probably want to spend about $3500+ on a Turbo Dynamics GT IX(I think that's what it's called).

This is similar to a Buschur 20G-LT except it has a one-off large magnesium turbine wheel, in addition to the White Rabbit billet aluminum(20G, 5-blade) compressor wheel inside of a shroud-ported IX compressor housing which sports a 4" inlet(3" is standard). All of this technology spins on a dual ballbearing center section.

This turbo is what the British Hillclimb and Tarmac Rally guys choose to run on their Evos and it would probably give you a fairly responsive club racer/street setup. A lot of the guys on LancerRegister love this turbo. But, nobody that I know of over here is using one yet.

I'd say GT30R of some type for sure. Lag isn't THAT bad, and it makes for excellent usage (I've found) going around the roadcourse.

ooh i forgot about this one- it is actually called the EVO400 WRC 400 Turbo. can be had thru the wonderful guys in the UK at EVO400. Turbo Dynamics helped them develop it...

http://www.evo400.co.uk/index.php?catPath=3_51

3076 or 50 trim or any stock turbo derivation, any others will be laggier or not worth it.

Scorke

Get a stock Evo 9 turbo. That will give you what you are looking for.

GO for GT3037s or HKS 2835 series you will love both in the street,excellent spooling,i have tested and loved them on a street car.But 280 cams....?

bigger than stock turbo + not laggie = not going to happen

i have heard from some that a Greddy t67 is a great turbo don't go all out on that but that is what i have heard does anyone else have any idea on how this turbo is.

There's much better options out there