1g throttle body 2g intake manifold??

[brandonzero0]

So my friend has a spare 1g throttle body and wants to kow if there will be any gians in performance if he ports his 2g manifold fr a 1g throttle body, has any one done this and ntoiced any good out of it...?

 

[romeen]

Along the lines of this TB swap from 2G to a 1G...it does seem that some 2G TBs have 3 vac ports and some have 2. Mine has 2 and the factory service manual shows 2 in the routing diagram. The RRE article shows a 2G TB with 3. Does anybody know how this translates? Since I have only 2 where would the 3rd one come from and does it mean that I need to cap 2 on the 1G? Oh yeah, it's a 99GSX.

Thanks
Jason

http://www.dsmtuners.com/forums/new...-1g-tb-2g-but-my-tb-only-has-2-vac-ports.html

 

[sd_ff22]

http://www.dsmtuners.com/forums/new...-1g-tb-2g-but-my-tb-only-has-2-vac-ports.html

Thats the one I was talking about!

-Dan

 

[Moparbishi]

I tried putting a 1g tb on my 2g. I had bad results. When I would start the car my idle would be around 2700 and stay there for about 1 minute. Then it would drop down to 1500 then after 10 minutes or so it would go down to 750 rpm. I put on my 2g tps and tried adjusting it numerous times. I replaced the tb gaskets twice. And still no results. Also when I got into high rpms while driving and pushed the clutch in it would sometimes die. I went back to my 2g and I havnt had any problems.

 

[sd_ff22]

You HAVE to use the 2G TPS.
Did you PROPERLY adjust you 2G TPS???
You HAVE to use a multimeter to do this, and if you do it wrong you get results like yours.

Did you check your shaft seals?
Did you try RTVing the gaskets??
DID YOU DO A BOOST LEAK TEST AFTER INSTALLING THE 1G TB???

What did you do with the 1g TB?


-Dan

 

[Moparbishi]

I did not test the tps with a mutimeter. But I did play with it and every position I had it at, I got the same results. The 1g tb has just been sittin in my garage.

 

[sd_ff22]

I did not test the tps with a mutimeter. But I did play with it and every position I had it at, I got the same results. The 1g tb has just been sittin in my garage.

HHHMMMM

$?

-Dan

 

[romeen]

Switching to a 1G TB is a worthy upgrade, I noticed a difference in both responsiveness and top end pull after the swap.

This post may help with the TPS adjustment:

http://www.dsmtuners.com/forums/151351898-post5.html

 

[brandonzero0]

Woohoo I made a popular thread that people acutally look at!!!!

 

[Moparbishi]

That is a very good write up. Would you get my kind of results if it wasn't adjusted properly.

 

[_DeS_]

Your making me think of getting a 1g TB now . Although I would get the JMF intake mainfold with it instead of porting it out. I would rather get it done once then do it mulitiple times!

 

[GofaST4life]

i jus got a 2g IM for 10 bucks on ebay...i plan on porting it....and after reading this thread i think ill start looking for a 1g TB...

but im sure ill have questions about the install...

good thread