TBI spacer? 89 4.3

drallan DeleteThis @smcm.edu wrote:
>
> Ok, So I need to replace the gasket between my TBI and the engine. It
> has a small leak and is sucking air in, which gives a terrible hiss as
> well as a high idle.(found this out when I was getting my cat looked
> at) I have done some research and the jury still seems to be mixed on
> TBI spacers. I figured since I am going to be taking off the TBI
> anyways to replace the gasket I might as well throw on a spacer (they
> seem to be relatively inexpensive and I like to tinker) if it will
> improve performance or mileage. I want opinions from ppl who have
> personally tried one, on a Gen 1 4.3 s10 or blazer. Please only ppl
> with personal experience. I don't want "in theory it should do this"
> or "all those products are scams" unless you have actually tried a
> spacer on a 4.3 vin z TBI. I am not trying to be rude, but I have
> found most replies to these type of questions are from ppl who have
> not actually tried the product themselves. If you did have a positive
> experience please let me know what brand, and if there were any xtra
> parts or hints needed in installation
> Thank you

I've not tried them, but it seems to me that the idea of preventing or
reducing heat transfer up into the intake makes sense for a carburetor
(vapor lock and all), but has little or no relevance with fuel
injection.
 >> Stay informed about: TBI spacer? 89 4.3 

drallan.DeleteThis@smcm.edu wrote:
>
> I'm not sure about the heat transfer. I thought that the added space
> theoretically lengthened the pleneum and allowed for a better fuel air
> mixture or something like that.

Moving the injectors next to the intake valves like in the SFI setup
does that. Do you really think that if the engineers designing the
engine could improve anything by mounting throttle body a bit further up
they wouldn't have? It's the same as the fuel line magnets and other MPG
voodoo, if it was that simple and actually worked, it would be standard
equipment.
 >> Stay informed about: TBI spacer? 89 4.3 

On Fri, 18 Jan 2008 02:55:59 GMT, "Pete C." <aux3.DOH.4 DeleteThis @snet.net>
wrote:

>drallan@smcm.edu wrote:
>>
>> I'm not sure about the heat transfer. I thought that the added space
>> theoretically lengthened the pleneum and allowed for a better fuel air
>> mixture or something like that.
>
>Moving the injectors next to the intake valves like in the SFI setup
>does that. Do you really think that if the engineers designing the
>engine could improve anything by mounting throttle body a bit further up
>they wouldn't have? It's the same as the fuel line magnets and other MPG
>voodoo, if it was that simple and actually worked, it would be standard
>equipment.

I've got one on my Jeep. I don't think it gave me any more power,
and it didn't affect the gas mileage one way or the other. I believe
that what it does is actually move the torque curve down so that you
feel like it gives a bit more power sooner in the rpm range.
If I'd had to pay for the spacer, I'd have been disappointed in it,
but since it was free, I left it on there.
T'was me, I'd just change the TBI gasket and get on with life.
--
Old Crow "Yol Bolson!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


--
Posted via a free Usenet account from http://www.teranews.com
 >> Stay informed about: TBI spacer? 89 4.3 

> Moving the injectors next to the intake valves like in the SFI setup
> does that. Do you really think that if the engineers designing the
> engine could improve anything by mounting throttle body a bit further up
> they wouldn't have? It's the same as the fuel line magnets and other MPG
> voodoo, if it was that simple and actually worked, it would be standard
> equipment.

I understand that train of thought. I agree and disagree. I am not
sure that just because it doesn't come the truck that it can't help.
If better flowing cat converters and mufflers can improve performance
slightly why don't they just put them on the vehicle? Or if stronger
coils, and lower resistance wires improves performance slightly why
wouldn't they come stock. Especially since the upgrade parts are not
that much more than the OEM replacements. I can't imagine that GM
couldn't get the better parts for a fraction of an increase
considering the volume they do/did. If the stock engine was always
perfect, then why do they come up with newer and better ones?
Regardless, I asked for opinions from those who have ACTUALLY tried
the product. I respect your opinion, but as stated in my first post. I
only want input from ppl with personal experience with the product.
Thank you
 >> Stay informed about: TBI spacer? 89 4.3 

Pete C. wrote:
> drallan.TakeThisOut@smcm.edu wrote:
>> I'm not sure about the heat transfer. I thought that the added space
>> theoretically lengthened the pleneum and allowed for a better fuel air
>> mixture or something like that.
>
> Moving the injectors next to the intake valves like in the SFI setup
> does that. Do you really think that if the engineers designing the
> engine could improve anything by mounting throttle body a bit further up
> they wouldn't have? It's the same as the fuel line magnets and other MPG
> voodoo, if it was that simple and actually worked, it would be standard
> equipment.


You are using reason to debunk this. Unfortunately, manufacturers do
not always use this reasoning. They work on a financial basis and even
though the cost of a spacer is minimal does not necessarily mean they
will do it. There are plenty of simple things that actually work that
no manufacturer puts on as standard equipment. If you ever succeeded in
business you would understand that a little bit here and a little bit
there cuts into your profits. When I rehab a house I could cheaply
upgrade this and that and the other thing, but would end up either not
gettingthe property because all these little things can easily add up to
thousands of $$ and then I bid too low and don't get the house or I
destroy my profit margin and can't afford to stay in business. Instead
I give a fair price to the seller and give a nice house to a buyer at a
fair price and I can afford to keep doing it.

Mike D.
 >> Stay informed about: TBI spacer? 89 4.3 

On Fri, 18 Jan 2008 05:57:22 -0800 (PST), drallan RemoveThis @smcm.edu wrote:

>
>> Moving the injectors next to the intake valves like in the SFI setup
>> does that. Do you really think that if the engineers designing the
>> engine could improve anything by mounting throttle body a bit further up
>> they wouldn't have? It's the same as the fuel line magnets and other MPG
>> voodoo, if it was that simple and actually worked, it would be standard
>> equipment.
>
>I understand that train of thought. I agree and disagree. I am not
>sure that just because it doesn't come the truck that it can't help.
>If better flowing cat converters and mufflers can improve performance
>slightly why don't they just put them on the vehicle? Or if stronger
>coils, and lower resistance wires improves performance slightly why
>wouldn't they come stock. Especially since the upgrade parts are not
>that much more than the OEM replacements. I can't imagine that GM
>couldn't get the better parts for a fraction of an increase
>considering the volume they do/did. If the stock engine was always
>perfect, then why do they come up with newer and better ones?
>Regardless, I asked for opinions from those who have ACTUALLY tried
>the product. I respect your opinion, but as stated in my first post. I
>only want input from ppl with personal experience with the product.
>Thank you

It has to do with reliability. They have to warranty these things for
100k(powertrain, anyway)now and to a certain degree, anything that
increases performance, decreases reliability. Sure, free flowing
exhaust may give you more power, but possibly the cat and/or muffler
might not last as long.
When the 6.5 turbo diesel came out the boost on the turbo was limited.
I had a customer who added a spring to the linkage on the dump valve.
Interesting setup, actually increased the boost by about 50%.
Unfortunatly, when he cooked the tops of the pistons, this setup also
cooked his warranty.

Like I said, I've got one of those spacers on my Jeep(have had for
about 3 years)and IMHO, if I'd had to pay for it, I'd consider it a
waste of money.
--
Old Crow "Yol Bolson!"
'82 FLTC-P "Miss Pearl"
'95 YJ Rio Grande
BS#133, SENS, TOMKAT, MAMBM


--
Posted via a free Usenet account from http://www.teranews.com
 >> Stay informed about: TBI spacer? 89 4.3 

On Fri, 18 Jan 2008 04:24:14 -0600, Old Crow <walliscrow DeleteThis @yahoo.com>
wrote:

>I've got one on my Jeep. I don't think it gave me any more power,
>and it didn't affect the gas mileage one way or the other. I believe
>that what it does is actually move the torque curve down so that you
>feel like it gives a bit more power sooner in the rpm range.
>If I'd had to pay for the spacer, I'd have been disappointed in it,
>but since it was free, I left it on there.


They can help with TBI systems as spacers increase phlenum and mixing
of fuel and air. On non TBI FI systems, they are a waste of money.

SnoMan

Let the Trolls desend as their egos and insecurities need to be
feed....

-----------------
TheSnoMan.com
 >> Stay informed about: TBI spacer? 89 4.3 

In article <2rqjr3ljjjpgdp868lc11vj09slaocnk8d.RemoveThis@4ax.com>,
SnoMan <admin.RemoveThis@snoman.com> wrote:

> On Fri, 18 Jan 2008 04:24:14 -0600, Old Crow <walliscrow.RemoveThis@yahoo.com>
> wrote:
>
> >I've got one on my Jeep. I don't think it gave me any more power,
> >and it didn't affect the gas mileage one way or the other. I believe
> >that what it does is actually move the torque curve down so that you
> >feel like it gives a bit more power sooner in the rpm range.
> >If I'd had to pay for the spacer, I'd have been disappointed in it,
> >but since it was free, I left it on there.
>
>
> They can help with TBI systems as spacers increase phlenum and mixing
> of fuel and air. On non TBI FI systems, they are a waste of money.
>
> SnoMan
>
> Let the Trolls desend as their egos and insecurities need to be
> feed....

Nice sig line snomoron.
Makes no sense grammar wise but it has a nice rhyme to it.
 >> Stay informed about: TBI spacer? 89 4.3