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Old 05-25-2002, 06:11 PM   #26
BlackNight
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Because of this test, unless you have some major mods don't try taking other cars if your rolling at 60 or higher, They will take you .

Now you should know what needs to be worked on to get better track times. What can you do to a WRX to get better top end? I want to know how to make the WRX a monster in both low and high end.

Kevin and I are still trying to find out how we can get the Video on the net. We did take it over to Kris's. Winslow, Tusin and Kris all have seen it. Kevin and I are thinking of doing it again, but this time with the Camera in the WRX so we can see the VR6 pull better. But, We will the the one we have on the Net and maybe do another.

Later,
Lee
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Old 05-25-2002, 06:38 PM   #27
nano
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The WRX has some preaty bad top end from the factory but It can be greatly improved.. For starters the stock turbo runs out of steam past 5500rpm and drops boost preaty badly. This becomes a major bottleneck at higher speeds.

A larger turbo would help this greatly and will hold boost all the way to redline.. A full turbo back exhaust should obviously be used so the engine doesen't choke with more power.

A larger intercooler or even better a front mount helps out a lot on the top end. It will prevent heat soaking at substained boost for long periods of time (longer then a 1/4 mile run). Usually gives a few MPH trap speed encrease.

Cams will also improve the top end power band by a lot. This will improve top end power considerably more where it usually drops at high rpms.

Last edited by nano; 05-26-2002 at 12:27 AM.
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Old 05-25-2002, 10:09 PM   #28
BlackNight
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Thats kewl,

What is the advantage of using a FMIC then a TMIC. Doesn't the air get the the TMIC though the hood scoope?
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Old 05-26-2002, 12:25 AM   #29
nano
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The front mount can be bigger and it gets much more frontal area flow. WHile the scoop sucks from a little thing hole. Front mounts are also away from the engine so they stay cooler.
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Old 05-26-2002, 01:22 AM   #30
KapaFool
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Once you shut down the rex, the TMIC gets really heatsoaked bad.
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Old 05-26-2002, 02:14 AM   #31
Code-7
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Think an FMIC would heat up the radiator? Guess you can always get a bigger/cooler one.
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Old 05-26-2002, 03:19 AM   #32
AutoXr
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I'm thinking that the VF29 would be good for both bottom and top end. I don't know how it specs out, but as I understand it, it's a VF30 ball bearing unit. Just getting a good ball bearing turbo seems to do quite a bit for bottom end.

I also read where the Scoobysport downpipe is supposed to add huge bottom end power. Can't confirm, but a guy running Solo II who had tried several DPs ended up with the SS because he said it kicked in 100-200 RPMs lower than the others he tried. He said that unless you had huge power, the 2.5" exhaust seemed to be the best for all around driveability and torque. Again, he was doing a lot of autox so it might not apply to the top end.

Has anyone checked out the TurboXS Stage 2? Seems like a good deal for the money if it really performs as advertised.

I put a note into Vishnu about Stage 1 availability and pricing, curious about the cost difference between it and the stage 0. The note I got back was:
Quote:
Hello Ron,


Thank you for your email. As the website says, TBA. Should be relatively
soon, but we don't want to make any more promises that we'll end up breaking
Should run about $1600 or so, on top of the Stage Zero.


---
Joel Gat
tel: 925-964-9233
Vishnu Performance Systems, Inc.
http://www.vishnuperformance.com


A bit too 'spensive for me in the near future.
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Old 05-26-2002, 05:21 PM   #33
WRXnFX
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The Scooby Sport exhaust claims to gain low end power where as BPM suggests their systems gain in the high end. The main reason is the the BPM is a 3" system. The MRT has similar gains. If you are looking for more low end then try an uppipe, too. The uppipe will allow the turbo to spool up quicker giving you the low end feel.

As for the TurboXS stage II, Min's WRX has it installed and he is hard to beat. I'm not sure how it will hold up against the Vishnu stage 1 but for the money it's damn worth it. I just ordered a Stage II kit for Kato and if you want to see the exhaust install then let me know. I'm hoping to get his TurboXS exhaust next Friday and start the install on Saturday. It seems that Unichips are hard to come by. I ordered one for a guy about a month ago and I still haven't received it. Now that I add the Stage II kit to the order, who know's when I'll get the stuff? TURBOXS IS BEING HELLA SLOW!!! Yup, Vishnu Stage 1 = $2600 if you by the Stage zero now. I can't say how they are going to increase their pricing but it is rumored that they will increase the stage zero to around $1200. Maybe that is just a ploy to get you to Buy it Now? Here is another rumor. Vishnu's initial release may be limited to current owners of their Stage zero.

A FMIC would be good if you had more horsepower. The stock is good to around 350. I've read that some people are having problems with their cars overheating because of the number of cores that are up front. You figure there are already two large cores sitting up front and adding a third may affect the cars heat exchange capabilities. The overheating was limited to a few cars but most people are having good luck with them. What sucks is all the piping that is needed. If you search for Vishnu, then you might find an interesting flow bench check thread of some top intercoolers with and without Samco hoses. They did a review on the characteristics of a bunch of ICs (surface area, flow rate, etc.) Have you looked at your top mount lately? My IC has bent fins from rocks. I have to get out there and straighten them every other month or so. Imagine if you had a FMIC. I'd probably go with a FMIC if I was making over 350 but then I'd probably want new gears, too.

Winslow
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Old 05-26-2002, 07:08 PM   #34
KapaFool
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This is getting off-topic. I think a new thread is in order. How about a thread on the different kinds of turbo upgrades and comparisons on TXS, Vishnu, Cobb, etc.
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Old 05-26-2002, 09:04 PM   #35
AK_2002_WRX
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Question

just a question,
how's Min's WRX's tranny handling all that power from the TXS stage2?
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