As promised (long ago, I know - sorry), today I had the JET throttle body spacer installed and dyno'd before/after.

Reports has been that it has helped the "dead spot" - which shows up as a dip in the torque curve on a dyno - in the 2k-3k rpm area.

Dyno showed differently - torque curve with TBS followed the curve before. However, it did result in a 0.8 hp gain and an 11 ft-lb torque gain at 4k rpm. At peak hp, torque gain was 6 ft-lb.

Before: 293.1 hp, 300.5 ft-lb; After: 293.9 hp, 306.8 ft-lb.

SOTP test:

I don't know if its because they dyno in a different gear and each gear would have a different type of curve, but the car definitely felt less sluggish in first gear. Other than that, I wouldn't say I noticed a huge difference, although it is certainly pulling nice in the mid-range. Given the max ft-lb torque gain at 4k rpm, I'd give it a :nice: - 11 ft-lb of torque for $100 isn't bad. I'm also pleased with the feeling of the car, particularly in first gear. It feels like the car has lost 200 lbs on a launch.

A WORD ON INSTALL WITH JLT CAI

I was prepared to modify the JLT as necessary, perhaps cutting some rubber off the elbow, in order to fit the spacer in. As it turned out, it was unnecessary. Although my JLT was right up against the tank, after putting the spacer in, it was really just a matter of lifting up the CAI and resting it on top of the tank lip. The JLT has a lot of give, in terms of placement, especially up an down - I think anyone else with a JLT who installs will find it unnecessary to make any space-making modifications.

Also note that I did not disconnect the battery - impractical to have to go through a trim-learning session while on the dyno. Also note that you need not disconnect the electrical connectors - you can simply take the TB off and rest it elsewhere with them still attached.

My dyno chart is below - sorry that it's hard to read - their printer was out of red or something, so it printed out light. The numbers are as above.

I'll post pictures of the setup w/ JLT, too.

Not bad for $100 . . . . thanks for the update and dyno numbers Jack.

JLT setup.

Looks good hopefully it will fit with the AFE Intake

not to bad for $100. ill buy it

Thanks for the info. Very detailed.

Notice your picture compared to this one from nbk13nw shows there are two different versions out there.
http://i5.photobucket.com/albums/y19...ideshow003.jpg

Heh. I have the fatty! :lol:

Very nice write up Jack and I am sure everyone appreciates your time & interest. :nice:

Jack thanks for the pics - I ordered mine last week and was waiting for a JLT/TBS combo to be posted.

That's initially the same way I installed mine, but it sure looked like it was touching the hood when it's closed. Cutting the rubber on mine to make more room won't work, or then it wouldn't clear the edge of the throttle body that sticks out.

Actually, it appears that this rubber was installed correctly and yours wasnt. If it matters to you for more clearance I suggest you rotate it.

Anyways, where did you buy this spacer from?

-Dan

Jack,

No to rain on your parade.....

you have the rubber tube installed backwards and upside down.

Thanks, guys. I'll have to fix that... Musta been :drunk: a little too much... heh. Fortunately, I doubt it makes a difference in terms of performance. I still think my rubber elbow and tube look fatter, though, than that other pic. Maybe its just a matter of distance from the camera.

Cleveland, I got the spacer at RPM Outlet. There was some noise on these boards that they are backordered there now. :dunno:

y22kc - how could you tell it was touching the hood? Did you look from underneath? Even if it was, as long as it wasn't be crushed by the hood, it seems like it'd be fine with the hood blanket to protect the paint and all. I'll take a closer look at mine today, but I didn't notice any hood clearance problems.

Edit: You know, since I do have the elbow on backward and the fit of the JLT seems to work for me, perhaps this is the mod necessary to install the TBS with the JLT, i.e., a solution by mistake. If so, it's a very simple one, at least. I just wonder, b/c my JLT's elbow seems to angle it back toward the driver a bit, which might help it clear the tank and give it some up/down movement versus it sticking out straight, more perpendicular to fender. I'll check it out today and report back.

Could be you have the JLT tube on correctly and the rest have it backwards. :jester:

I don't know for sure it is, it just looked like it would be touching when the hood is closed. It definately is not crushing it, and the hood blanket would protect it. I just didn't know if it would harm aif flow if it is indeed touching.

For those that are painting the spacers, are you using normal Engine-type High heat paint?

TC

Hummm.... what happened to all the other people from the previous thread on this subject that were completely positive that the throttle body spacer was crap specifically designed to rip people off?

Thanks for the dyno ILB. I actually have been too busy to get over to my local shop to do some verify runs.

Looks like it is legit, at least on these engines. Maybe it is the Drive by Wire?

Thanks Jack for the dyno info. My experience with this mod confirms that graph. :nice: What's really nice about that torque gain is that there is no HP loss, and there is a gain from idle to redline!

I don't have a JLT so I'm only going by memory, but aren't the 2 ends of the rubber tube shaped differently? The TB end being oval and the other end being round. :dunno:
If that's the case, you can't put it on backwards.

y22kc, what do you mean by it won't clear the front of the TB? Is there anyway to modify it so it looks like the smaller version? Do you think JLT would send you the smaller tube?

Hummm . . . . not sure I ever called it "crap" but I'm still here and still with the same opinion. The way I see it, a gain of .8 rwhp is not even close to the claim of 8+ rwhp that RPM Outlet is advertising. You may see it differently.

Now, if the TBS is providing some other benefit to the members, that they determine justifies the cost of the TBS, then I'm happy for them and I respect the choice they made.

The Boss Hog

Mine is round on both ends. If you look at the throttlebody, you'll notice on the right side where it extends out some. If you cut the tubing too much, it won't clear that. I did quite a bit of meassuring and really don't see the JLT clearing the power steering pump, even on the small hose pic (although that one is hard to tell because of the darkness.)

Actually, calling it crap was paraphrasing not quoting, and I wasn't talking specifically about you. There were a hand full of people all on the same side of the fence. Nice of you to think that you were the center of the conversation, but you weren't.

As for the gains, it's not all about horse power. Does the 11ftlb rwtq not count for anything? Last time I checked, horsepower looked good on dynos, and torque won races.

Bottom line is exactly what you said though. If the people purchasing it are happy with it, then that is all that counts. I personally am content with the outcome of it.

Nice shot hawgman. :nice:

<!--QuoteBegin-hawgman@August 8, 2005, 9:57 AM
As for the gains, it's not all about horse power. Last time I checked, horsepower looked good on dynos, and torque won races.

Quoted post

[/quote]

Maybe for a tractor pull . . . .


The Boss Hog

Yea, that came out a little harsher in type than it sounded in my empty little head. Sorry...

Peace.

My guess would be it's because of that torque increase that everyone likes the SOTP meter readings.

The words of Caroll Shelby, "Horsepower sells cars, Torque wins races" :nice:

Hey Hawgman,
I was one of the people asking for dyno proof of what the ADVERTISEMENTS were claiming. Please re-read my comments. I am getting old and have been accused of forgetting some things BUT, I am sure I don't remember saying it was CRAP. I just asked the MANUFACTURER to provide dyno prove of what the members REAR ENDS on this board was saying. I would like to thank Jack for providing this dyno pull at his expense to give us the truth about this TBS. Again, I agree with Boss Hog that this pull came up short of the horsepower gain claimed by RPMOUTLET but I am impressed with the 11 lbs of torque gained. That, with the improved throttle response will make me consider purchasing one. For what's its worth I just purchased the Borla catback exhaust system and according to RPMOUT I should gain 17 hp do to the catback system verses no mention on any hp power gain from the axle back mufflers. I personally am buying them for the sound and not hp gain. I DON'T believe the hp gain claimed by RPMOUTLET. Again, I want to thank Jack for his efforts to bring us the truth and am NOT tring to start any fights with anyone but just try to bring out the truth. Which sometimes brings out tempers. :-D
Scott :nice: :nice:

FWIW, since many people have said "thank you" - you're welcome. I get so much out of these boards; it's always a pleasure, not an annoyance, when I can give back. I had been intending to dyno my car anyway b/c I hadn't done it yet after adding some other mods. The TBS came out and many people raved. It was cheap and the claimed benefits seemed nice, so I figured I'd kill two birds with one stone - figure out what my car's making, and while I do that, figure out what the TBS is doing.

So thank all of YOU back! :nice:

No, thank you. :nice:

Again Jack, Thank you
Scott :nice: :nice: :nice:

:nice: Thanks Jack for the dyno and the info! :nice:

go to www.autoanything.com you can get it for 93.95 and free shipping :nice:

sorry I haven't been on in a while, just came back from vacation, great to hear the dyno results, glad to know what I was pushin as the test-mule... :nice:

I was mistaken. Hatchman contacted me and said the one I was looking at was on backwards. Glad you didn't cut it! :nice:

If after all the info here you just have to have one wait six months and they will sell for $19.95. It works every time. The truth gets out there and the price goes down after they try to sell them on E bay. I have Jays pipe and am not sure it would even work for me without some other mods.

Has anyone received theirs from autoanything.com yet? Mine came in today but it's at home and I'm not ;) My wife said it was silver instead of blue like I thought they were supposed to be. As long as it's the right piece, I'll be installing it tonight and post pics if anyone is interested.

Silver??? Uh oh, I'd make sure you got the right one! They all come blue!!

Great :bang: just f'in GREAT :rolleyes: Oh well, we'll see what it looks like when I get home.

Maybe they sent you the 62 mm TB instead of the TBS. Assuming you paid ~ $100, that'd be a bargain! :-D

:shame: OK, false alarm. I sent the pic of the thing to my wife and she said "Oh no way, it doesn't look like that at all! The thing you got is round like a ring" Then she said it's from JLT. AAAAAHHHHH!!!! OK so my JLT insert is here, but the spacer isn't yet. False alarm - as you were ;)

I ordered mine Aug 4th. I called yesterday and was told they are back ordered for another week or so. :(

Who'd you order from?

I ordered from autoanything. They're shipped directly from the manufacturer.

:lol:

"Does that look like a throttle body spacer to you, honey? Does it!?" :jester:

Women... :shame:


:-D

Yeah man, you got it - I was like, "Honey do you know the stress you just caused me?! Come on woman!" :lol:

Hahaha, "you made me rush home for nothing! Get in the Kitchen and make me a sandwhich woman!" LOL :D

:rofl3: Mmm.. A sandwich? :drool: "True."

If you flip the elbow around and put the shorter end on the TB it will give much more clearance. :nice:

So, how does this throtle spacer work ?

I'm a little dissapointed at it's HP gains (+1 was it?).

Its not the horsepower number you should be concerning yourself with anyways. Its the torque and this piece apparently improves that 10+ and reduces throttle lag through the rpm. My mid range definitely feels smoother and the pickup is a bit better than before.

This thing also adds a slight whine at higher RPM, I love it. The next time im on the dyno I will be more than happy to confirm the changes.

-Dan

If I wanted to change the color of the TBS, what type paint would I use?

Common sense tells me "High Heat". But with all the air "Turbulating" through it, how hot would it really get. Or would it just heat up from the engine compartment?

Engine paint?

Tom

Has anyone had any success or difficulties with the TB spacer with the C&L Intake? I love the look of the intake, but don't want to sacrafice function for fashion. I'm sold on the spacer and don't want to create any extra work for myself.

As soon as I get my spacer, I'll let you know. I already have the C&L.

Tom

I have the C&L and installed the spacer yesterday. The throttle response is a little better but can't really tell a great deal of difference in power... No problem with the install or the C&L with clearance. I DID NOT DISCONNECT THE ELECTRICALS OR BATTERY. There is no need to. I just let the throttle body drop below and install the spacer.

1 BAD 05
:-D

That's good to know that it will fit. After looking at the space, I thought it might not fit.

Why did you NOT disconnect the electrical system?

I thought it was a good idea to let the computer re-learn the new air "situation".

I really don't know for sure, but resetting the computer couldn't hurt.

What do others say about resetting the computer?

Tom

She's in!

The space ain't that great with a C&L, real tight. Had to "Squish" the air filter cone against the fender to get the correct angle of the C&L intake arm to line up against the TB.

I also have a "temp" vent hose on till I can make the right one to use with the stock connectors.

Might of been in my head, but it "felt" better and I did slighty hear that whistle sound as I start to accelerate, but the SLP's drown it out after take-off.

Tom

Ordered Aug 4th....I ordered from Auto Anything and checked with them again today. Now they're saying 2 more weeks!! :bang: :bang:

I will not be ordering anything from them ever again. I know that back order issues are out of their control, but I ordered on 8/3 and my card was charged that day. I don't like being charged for something that's not on the way. So bu-bye autoanything.com :rolleyes:

I got mine from RPM Outlet, it took about 3 weeks (order to door), but for them to hassle with USPS/Customs and for it to come all the way to Germeny, I can't complain.

Tom

I love the whistle of rushing air even with my Loudmouths slightly drowning it out.

-Dan