Miata Turbo Forum - Boost cars, acquire cats.

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-   -   Neon SRT-4 (https://www.miataturbo.net/insert-bs-here-4/neon-srt-4-a-36191/)

skidude 06-16-2009 03:00 PM

Neon SRT-4
 
How fast are these things? I met one on the highway the other day and we pretty much tied from 70 to about 110. I know I need spark tuning like nobody's business, but I am still a little shocked that this thing could keep up as well as it did. It also made noises I didn't think stock cars made... like VTA BOV, and very audible turbo spool.

BarrigaNA 06-16-2009 03:50 PM

It wasn't stock...

cueball1 06-16-2009 03:58 PM

They are a very popular car to upgrade. The factory supported that with it's staged upgrade program that kept the warranty intact. Pretty common for these to be putting 300-400hp to the ground.

Savington 06-16-2009 04:12 PM

They take to mods like a stripper takes to hooking.

1redcanuck 06-16-2009 05:59 PM

The Mopar BOV is a very popular mod and is very loud. It sounds almost like air brakes. I have it on my PT Cruiser and it is much more noticible and easier to set off than the one in my Miata.

icantthink4155 06-16-2009 08:07 PM


Originally Posted by 1redcanuck (Post 420215)
The Mopar BOV is a very popular mod and is very loud. It sounds almost like air brakes. I have it on my PT Cruiser and it is much more noticible and easier to set off than the one in my Miata.

more info on the boosted PT?

kotomile 06-16-2009 08:24 PM

I have an '05 SRT4, and they're not that fast stock. If you could hear his turbo spool, then he wasn't using the stock exhaust, and probably had other mods.

4155: You know that boosted PTs were offered right?

icantthink4155 06-16-2009 08:36 PM


Originally Posted by kotomile (Post 420255)
4155: You know that boosted PTs were offered right?

I've seen one with TURBO on the back but it was riced so I didnt take it seriously. Any good?

kotomile 06-16-2009 08:42 PM

They made one with the same engine as the SRT4 (or more correctly, they made a Neon with a PT cruiser engine...), but with a smaller intercooler, so a lower power claim. They also made a low boost version to sell in the PT cruisers. One of the reasons the SRT4 engine is as strong as it is is because Chrysler was desperate to increase PT sales, so they went a little overboard on the engine.

Interesting note - the SRT4 and PT cruiser use the same exhaust manifold with the turbine incorporated to save space, because there's not much room beneath the hood of the PT.

http://webpages.charter.net/westrock...ll/turbo12.JPG

hustler 06-16-2009 09:18 PM

where does the turbo go on that manifold?

I've run one that claimed 450whp and I walked him from 50mph to 135.

kotomile 06-16-2009 09:19 PM

The turbine housing and manifold are one casting hustler, take another look. :)

hustler 06-16-2009 09:52 PM

so the wastegate port is the size of a tennis ball?

Project84 06-16-2009 09:59 PM

is the turbo a v-band (left side of manifold at top... you see v-bandage?)

1redcanuck 06-16-2009 10:00 PM

Ya I have a 2003 PT Cruiser GT. I has the HO 2.4 turbo rated at 215hp, 245 tq. This engine was actually designed for the PT and later found its way into the Neon. It's great fun for what it is, and I have surprised a few people with it. Probably on par with a stock NC. But it's doen't seem nearly as much fun as it used to now that my Miata has a turbo on it!

Vashthestampede 06-16-2009 10:28 PM

I dislike SRT4's just because of the FWD aspect, not to mention the drivers that are usually douching up the streets in them.

PT cruisers are by far though the worst car on the road. I hate them so much sometimes when I'm near them in traffic I actually think about smashing into them and pushing them off the road.

No hard feelings though if you drive either :bigtu:

kotomile 06-16-2009 10:35 PM


Originally Posted by hustler (Post 420293)
so the wastegate port is the size of a tennis ball?

Nope, that's the first part of the downpipe. It's a weird design...


Originally Posted by Project84 (Post 420298)
is the turbo a v-band (left side of manifold at top... you see v-bandage?)

What you are looking at is the CHRA side of the turbine housing.

Maybe this will help orient y'all to the pic:

http://hotrod.com/techarticles/engin...9_srt_20_z.jpg
http://webpages.charter.net/westrock...ll/turbo11.JPG

wayne_curr 06-16-2009 10:37 PM


Originally Posted by kotomile (Post 420323)
Nope, that's the first part of the downpipe. It's a weird design...



What you are looking at is the CHRA side of the turbine housing.

Dude i'm so confused on how that works! Diagram? Better pics?

A guy at my school has one that you can hear the turbo whirring noise on but has the stock intercooler. I'll try not to pick on him cause I dont wanna get whooped up on by a Neon haha.

Edit: now I see. Very weird. Cool though :)

pdexta 06-16-2009 11:22 PM

On the stock turbo they can run a little over 300whp, low 13's @ 110ish typically. It's a car everyone loves to hate, but for what it is, it's pretty quick. I ran one pretty much dead even in my old SC S2000, made me want to cry.

kotomile 06-16-2009 11:30 PM

Last I remember the stock turbo record was 10.9 w/ slicks.

pdexta 06-16-2009 11:36 PM


Originally Posted by kotomile (Post 420345)
Last I remember the stock turbo record was 10.9 w/ slicks.

They have some major problems hooking up on street tires. The stock wheels are 6" and I've rolled the fenders for a guy that was trying to fit 225's on an aftermarket wheel. 10.9 is very impressive though, must have been running some serious meth injection and pushing the turbo way beyond it's limits. I've seen a few friends trying (unsuccessfully) to crack 12's on the stock turbo and street tires.


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