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View Poll Results: Whats the best. Looking for quality and driveability.
NW 90
77.27%
UMI 90
0
0%
Other 90
22.73%
Voters: 22. You may not vote on this poll

NW 90 vs UMI 90

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Old 04-02-2008, 09:51 AM
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Question NW 90 vs UMI 90

I plan on buying one really soon. Which one and let me know about your experiences. I'm leaning towards the UMI due to the driveability they claim since thats my major issue. I'll be selling my FAST 90 if anyones interested. Thanks and make sure to vote.
Old 04-02-2008, 09:58 AM
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I'd say you'd probably be ok with either one. I've had no issue with my NW. I went with it because it's been a proven performer with a good history.
Old 04-02-2008, 10:43 AM
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Between the 2, go NW. Bluemaxx has apparently fixed their TB sticking issue. Was due to tight tolerances.
Old 04-02-2008, 11:02 AM
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The NW is a quality piece even though we compete directly I can say his is the only one out I feel is equal to ours. (I know, thats hard to admit but it's true). I would incude ours in your poll as well:

Old 04-02-2008, 11:18 AM
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Does anyone have any experience with umi. I was told alot of the lack of driveability was due to the straight bore design common with alot of the aftermarket 90's and the umi incorporated alot of features of the stock throttle body for driveability without a real loss of power. This car is a dd h/c and a couple horsepower give or take isn't a concern as much as driveability is. Thanks for the inputs and keep them coming.
Old 04-02-2008, 11:28 AM
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Originally Posted by kkslds
Does anyone have any experience with umi. I was told alot of the lack of driveability was due to the straight bore design common with alot of the aftermarket 90's and the umi incorporated alot of features of the stock throttle body for driveability without a real loss of power.
I have no direct experince but this is pretty much what I have heard too. Subscribing as I will be in the maket for a 90 soon.
Old 04-02-2008, 01:02 PM
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Originally Posted by TLewis4095
The NW is a quality piece even though we compete directly I can say his is the only one out I feel is equal to ours. (I know, thats hard to admit but it's true). I would incude ours in your poll as well:
That's a damn good looking TB
Old 04-02-2008, 02:01 PM
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My vote is for PTM. I would call TSP and ask about the PTM tb. Quality and price is second to none.
Old 04-02-2008, 02:46 PM
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i read a thread on here not to long ago and somebody swapped over to the umi and it seems to fix %90 of there driveability issues. but i have also heard the sticking issue has been resolved on the NW.
Old 04-02-2008, 02:56 PM
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The UMI may have better drivability or may not. I have seen alot of the PTM tb's and everyone of them work perfect ( no tuning or driving issues). I vote for the PTM and my second vote would be for NW.
Old 04-02-2008, 05:42 PM
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I would vote for the Nick Williams throttle body. We have a PTM on our car and it would not open all the way and was messing with the cruise control. We had to totally disassemble and then reassemble to get it to work right. Still considering getting a NW...
Old 04-02-2008, 07:00 PM
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I have never had any drivability issues with the straight bore up to 100mm. I think where people run into issues is when they choose to adjust the resting angle of the blade instead of drilling a bigger hole in it to get the IAC in range. You end up making it way more sensitive that way.

Nick
Old 04-02-2008, 09:16 PM
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Originally Posted by Nick Williams
I have never had any drivability issues with the straight bore up to 100mm. I think where people run into issues is when they choose to adjust the resting angle of the blade instead of drilling a bigger hole in it to get the IAC in range. You end up making it way more sensitive that way.

Nick
So are you saying you recomend drilling a hole in the blade rather than using the adjuster screw? I ask because I have a NW 90 abd i've been have some idle issues lately (not blaming the TB in any way) just looking for some other options that might be worth a try.
Old 04-03-2008, 08:02 AM
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I have never had any drivability issues with the straight bore up to 100mm. I think where people run into issues is when they choose to adjust the resting angle of the blade instead of drilling a bigger hole in it to get the IAC in range. You end up making it way more sensitive that way.

Nick
My fast doesnt have a hole in it and its very sensitive when I adjust the screw. I'm always adjusting trying to get it to idle right. The weather changes so does my idle. Are you recomending drilling a hole in the blade like a stock one. What size hole? And another thing thats going on is hesitation sometimes and when I start my car half the time it'll rev way up and I have to feather it to keep it steady or my rpms flucuate way up and down. Also when I push the clutch in it'll rev up and when I come to a stop sign it idles really high for about 3-5 seconds and then drops down. A very notible person did the tuning and alot of the threads i have read have pointed towards the tb. What should I do?
Old 04-03-2008, 08:03 AM
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Oh yeah and every so often my ses light comes on for tps.
Old 04-03-2008, 11:08 AM
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I had to drill a hole in mine. It's fine.
Old 04-03-2008, 01:13 PM
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I always drill the hole to get the IAC steps atleast under 100 when at hot idle. Then use the adjuster screw as a fine adjust. On some cars I even drill a second smaller hole since each drill size up makes a bigger amount of change than the last.
Old 04-03-2008, 01:15 PM
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Originally Posted by kkslds
Oh yeah and every so often my ses light comes on for tps.

You probably have adjusted it to the point where the tps voltage is too high at idle. It would probably work better with a small hole and then back the adjuster off some. That is just my guess.

Nick
Old 04-03-2008, 03:08 PM
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What size hole do you guys recomend. Also thanks for the help its greatly appreciated.
Old 04-03-2008, 06:14 PM
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I got a ptm90 I'll sell you for 300.00 shipped, I had it on another car and it worked great. pm me if you are interested. Brian


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