GT2871 question

[mechavore884]

I've been searching around the forums and pretty much came to the assumption to get the GT2871R (for its power) however........I was wondering if you guys new a good way to keep the lag down as much as possible?

[coolcatracing]

Just get the .64 A/R and you'll be fine. Its about the best compromise unless you want to get a high end manifold with a T3 flange.

[mechavore884]

this may seem like a stupid question lol....but would that scrifice power any?

[coolcatracing]

A nice manifold and turbo setup will increase power across the board. If you're wanting to stay under about 350whp then the 2871 .64A/R is a good choice. Over that and it becomes a restriction and you can yield better results with even a 2871 with a T3 flange instead. The .86 A/R is great but the same results up top can be had using a T3 flange but without losing as much midrange.

[JVD]

this may seem like a stupid question lol....but would that scrifice power any?
Yes. There is a trade off.

Spool vs. Max HP

[garagelu]

There really isnt any lag with the 2871r. If you want instant power when you step on the gas, get the 2871r .64. One thing I dont like about the 2871r is the top end. I would like a little more top end with my setup. I really want to upgrade to a 3071r. You should buy my 2871r .64 so I can upgrade. PM if you are interested.

And if you like instant power, keep the stock intake and exhaust manifolds. And then just upgrade the cams. Go with a 264 duration and either a 11 or 11.5 mm lift.

[mechavore884]

I guess in this case the .64 sounds respectable.....but what intake and exhaust cams would you recommend if I go with the .86? (sorry about all the questions but im still fairly new to this LOL)

[fliprayzin240sx]

Tomei procams, catch is with 11.5-12mm lift cams, you should upgrade the valve springs.

[mechavore884]

even on the S14 blacktop engine? (well I guess in that case what valve springs would you recommend)...