[s346k]

yeah it has had nothing but ethanol since it was tuned in april. i highly doubt vacuum leak but i'm going to ether test it again in the morning. first test was negative.

[ttyler333]

How do you remove the lt1 manifold bolts?

[6spdhyperblue]

Are the lt1 bolts the same as LS? Seems like it...

Would these work?
https://briantooleyracing.com/arp-in...-130-2001.html

[s346k]

Originally Posted by ttyler333

How do you remove the lt1 manifold bolts?

remove them from the intake manifold? i used a hammer and lightly tapped them up.

the ls1 bolts do look similar. it is nice that the lt1 & lt2 intake manifolds use the same bolts.

[ttyler333]

Originally Posted by s346k

remove them from the intake manifold? i used a hammer and lightly tapped them up.

the ls1 bolts do look similar. it is nice that the lt1 & lt2 intake manifolds use the same bolts.

Didn't know that'd break them loose. Sounds good. Thanks.


Edit:worked perfectly. Thank you.

[Mountain]

Originally Posted by Fraxum

Very creative work! But given that it is possible to adapt the IM to the LT1 and get these results I would wager that an LT1 version already exists at GM for the possible use next year or the year after. Ford sells Mustangs by adding a little HP Chevy can do the same at a very low cost.

But this effort is so cool. I had a ported MSD and while it did give about the same benefit as the LT2 IM it was super expensive for a piece of plastic. And unless I am mistaken the LT2 power is less RPM intense. Better on the street.

Honestly, this is what Im starting to wonder. We’d know by next summer, which is when I plan to do this at this point.

[Jbustamante24]

Did you need any other extensions besides the map hardness extension brotha ?

[cmitchell17]

Originally Posted by Jbustamante24

Did you need any other extensions besides the map hardness extension brotha ?

Your stock PCV hose will need an extension, or you can just replace the OEM tube with a longer piece of 3/8 hose.

[laynlo15]

Man I bet MSD is counting the loses in sales. GPI didn't do them any favors posting the Video and HP gains. Wish it would work on my Vette also but won't clear the cowl.

[BlackbeastSS2]

Originally Posted by bhillakaiceberg

GPI is doing all the modifications needed to just bolt this sucker on. Heard they had a large batch come in a few days ago, but have another large batch on order. Basically, just get in line!

• Brake Booster Fitting Drilled/Tapped
• High Pressure/High Temp Compatible Fitting
• Material Removed from Bottom of Manifold for Fitment
• Map Extension Harness as well

https://gwatneyperformance.com/cart-share/k8QZA/ref/2/

Just order thru GPI. $454 and that includes all taxes and shipping. Not bad and it’s being shipped up north to Canada for that price. Comparable hp/torque numbers to MSD and way less in price. I will port the opening to accept a 95mm TB and an adapter plate. Very excited to put it on and feel the difference hopefully.

[BlackbeastSS2]

Originally Posted by Purplt1

Yes the 95mm does work.

Looks like no adapter plate on yours? Is that correct?

[BlackbeastSS2]

Originally Posted by Dvs510

This is what the booster hose looks like, I bought an extra just incase I decided to hack it up.. it’s heat treated and hard like plastic to hold its shape so it doesn’t kink when trying to route it. It’s not a straight shot between connections. So if u just ran your own hose u would have to b careful that it doesn’t kink.. but then u also have to figure out how to connect it to the main hose.. best bet is to either buy an extra one of these to hack the end off ($15) to just do a regular 3/8” fitting to the manifold, or buy the 1/2” push to connect fitting I mentioned

I am going to order this hose just in case I have to return to stock because I just read one post and the guy said it was not running that great.

I know we have Dyno numbers, are there any driving results with just putting the intake manifold on and no AF tweaking?

[Dvs510]

Mines been installed for over a week but haven’t driven till yesterday. With no real history with these I didn’t want to just slap it on and assume not tweaking the af was ok.. when I actualy drove it over to drop off with the tuner it seemed like it was running fine. Didn’t go wot or anything but regular driving and just getting on it a little bit was ok

[KingLT1]

I seen somebody on Facebook report that after swapping to the LT2 intake the AFR leaned out from 12.8 to 13.4. I suggested getting the AFR back into the 12.8-13.0 range before running it hard and somebody else posted that is still too lean "They set their cars up for 11.8" lmfao...gotta luv these internets.