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Old 03-26-2005, 03:32 PM   #1 (permalink)
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3vze injector performance at 258,000 miles.....results!

Brought to you by Cruzin Performance, I called inquired, shipped, and here were the results for my injectors! They will be back this wednesday, and Richard Jensen RULES!! And from what I've seen thus far, I HIGHLY recommend his services! (Yes mods, I paid for services rendered.)

Anyhow here are the results - keep in mind I try to only use cheveron supreme (engine pings if lower octane is used) and for a while I went heavy on the pour in injector cleaners with my old plugs. (since then my truck has not seen an injector cleaner in about 20,000miles or so...)


Date: 3-20-05
Vehicle: 90 TOYOTA 4RUNNER
Model: 23250-65020
Injector serial #: 503201-503206


Preliminary Test Results
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6
Test 1. Injector Resistance 13.7 13.8 13.8 13.8 13.8 13.7
Test 2. Leak Down Test (Pass / Fail) P P P P P P
Test 3. Spray Pattern (Good / Fair / Poor) G G G G G G
Test 4. 90 Second Pulsed Flow Delivery (mL) 71 72 73 72 71 71
Test 5. 100mL Pulsed Volume 98 99 100 99 98 98
Test 6. 20 Second Static Flow (mL) 74 75 76 75 74 75
Test 7. 100mL Static Flow 98 99 100 99 98 98

Test Results After Service
Test pressure = 43.5 psi Injector No.
1 2 3 4 5 6
Test 1. Leak Down Test (Pass / Fail) P P P P P P
Test 2. Spray Pattern (Good / Fair / Poor) G G G G G G
Test 3. 90 Second Pulsed Flow Delivery (mL) 75 75 77 76 75 76
Test 4. 100mL Pulsed Volume 98 98 100 99 98 99
Test 5. 20 Second Static Flow (mL) 76 77 77 76 76 77
Test 6. 100mL Static Flow 99 100 100 99 99 100
Approximate pound-per-hour flow 19.5 19.76 19.76 19.5 19.5 19.76

Parts Replaced
Pintle Caps Seals O-Rings Screens Hoses Clips
6 12 6 6 0 0
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3vze, 4x4, sr5, 90, auto, LSD
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2003 Nopi Nat. Street B champ
2004 SBN Street C champ
2004 SBN Advncd NW Champ
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SPL: 159.8db @ 42hz

In loving memory of Jamie Riggs 5/15/85 - 10/8/04

Last edited by Bumpin' Yota; 03-26-2005 at 03:37 PM.
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Old 03-26-2005, 04:36 PM   #2 (permalink)
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I wish I knew what that all means...
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Old 03-26-2005, 04:46 PM   #3 (permalink)
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Leak down test is watching for the injectors leaking when closed - if that were happening it would contribute to a rich condition. Spray pattern is fairly obvious.

Static and pulsed are constant flow and interrupted flow respectively. This is done for each injector 1 - 6.

Then they perform their service and retest them. That's what im showing.
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3vze, 4x4, sr5, 90, auto, LSD
2x dB Drag World Finalist
2003 Nopi Nat. Street B champ
2004 SBN Street C champ
2004 SBN Advncd NW Champ
2004 Former WR Holder in NW.
SPL: 159.8db @ 42hz

In loving memory of Jamie Riggs 5/15/85 - 10/8/04
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Old 03-27-2005, 11:27 PM   #4 (permalink)
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How does that improve your gas mileage? What are you getting now?
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Old 03-28-2005, 04:44 AM   #5 (permalink)
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So from my layman reading of those tests, it looks like you didn't really need to have them cleaned. But what do I know about it.
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Old 03-28-2005, 05:04 AM   #6 (permalink)
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Quote:
Originally Posted by YeloSub7
How does that improve your gas mileage? What are you getting now?
Never said a thing about improving mileage - I just needed em cleaned for peace of mind since I'm at 258,000 miles and I had the plenum off. The injectors wont be here till wednesday

Quote:
Originally Posted by mt_goat
So from my layman reading of those tests, it looks like you didn't really need to have them cleaned. But what do I know about it.
I came to the same conclusion - they didnt need the cleaning, but they all are flowing more and are closer to equal now, so that can't be a bad thing. lol
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3vze, 4x4, sr5, 90, auto, LSD
2x dB Drag World Finalist
2003 Nopi Nat. Street B champ
2004 SBN Street C champ
2004 SBN Advncd NW Champ
2004 Former WR Holder in NW.
SPL: 159.8db @ 42hz

In loving memory of Jamie Riggs 5/15/85 - 10/8/04
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Old 03-28-2005, 05:25 AM   #7 (permalink)
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Quote:
Originally Posted by Bumpin' Yota
Never said a thing about improving mileage - I just needed em cleaned for peace of mind since I'm at 258,000 miles and I had the plenum off. The injectors wont be here till wednesday

I came to the same conclusion - they didnt need the cleaning, but they all are flowing more and are closer to equal now, so that can't be a bad thing. lol
Regardless of if they needed it or not I would have done the same thing at that mileage.
They did come out very even after the cleaning.
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Old 03-28-2005, 05:56 AM   #8 (permalink)
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My question now is how much and what brand of injector cleaner were you using. I noticed you said "heavy", can you try to quantify that? Thanks
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Old 03-28-2005, 08:12 AM   #9 (permalink)
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It is very impressive how good your injectors tested after all those miles. If I don't run sea foam through mine once a month it bucks like a bronco

How quickly did they get to your injectors?

Erich
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Old 03-28-2005, 08:12 AM
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