Petey62782

iTrader: (19)

I've been seeing a lot of people doing the TBSS intake and I was wondering I have a LQ9 with LTs, dual elec. fans, bbk 80 mm tb, k&n intake, Gibson cat back, high flow cats, FLT lvl5 4L65, yank 2600 stall , 410 gears ,UD pulley and a tune so to make a long story short I'm trying to gain down low and will the TBSS intake help at all. Mods soon to come are 243 heads with a cam

Killer5.3

iTrader: (1)

I am pretty sure most of the gains are up top because a stock TBSS LS2 shifts around 6400-6500 rpm. I don't think it will lose any down low though and would work very well with 243/799 heads and a mild cam. I would probably look at some of the off the shelf grinds designed for TBSS or get a custom grind as they were designed to work well with that combo. Make sure you have those 243's milled to get your compression up to at least 11:0:1.

neilownz

It uses a bigger tb.

1989k1500

iTrader: (23)

More converter would be your best thing. The compression from the 243s should help the torque a little but a cam is going to shift the powerband even higher. Honestly a bone stock truck needs a converter that stalls at least 3K.

243s on an LQ9 should already be right around 11:1 without milling them.

Killer5.3

iTrader: (1)

Yes you are probably correct. I know the chambers are 64.5 CC and 317 are 72CC but I couldn't remember how much that raised it off the top of my head. If he uses a .051 head gasket then that should be correct I think. Either way OP it would be beneficial to swap the intake over the stock truck intake to answer you original question again.

Petey62782

iTrader: (19)

Great response's thanx very much

zero2sixT

iTrader: (4)

https://www.performancetrucks.net/fo...inally-455536/

This made me run one on my lq9. Should be pretty helpful, its a bolt on truck also.

If your converter hasn't been restalled, yank gives you a free on time restall. Just throwing that out there. Not sure if you knew that or not

Petey62782

iTrader: (19)

I didn't know about yank giving one free stall thanx for info

Petey62782

iTrader: (19)

Thanx zero to six t for that older post it's gives me a dyno sheet to answer my qeustion