Smog, I really don't know but I would assume that the 3037 with a 3in highflow would spool about 750-850rpm later then stock. The 3071 would be one mean smucker on road. Just Nasty.

 

330x1.18= 389.4

 

Multiply the DD dyno number 323 by 1.18 and it = 381 for a dynojet: Right???

 

so he is making 389 on 97 oct right? When are you getting a cat delete pipe and some cams !!!!! I am trying to figure out have much quicker the spool will the on the 3071r with those supporting mods ...

 

yeah i fat-fingered and i think i typed 320 into my calc, instead of 330

 

Well think of it this way a 3in down pipe going into a 2.25in stock OEM cat.

I would assume at least 400rpm-600rpm And don't think Cams will help with spool but peak horse power will be up another 35-45whp.

Disclaimer when every I say whp I'm always baising it on a dynojet.

Sorry Dynojets is all we have around here.

 

It really depends on which AWD dynojet. As illustrated in this month's SCC mag, even different AWD Dynojets read differently. For example, the AWD Dynojet at HKS and Pruven read roughly 18-20% higher than ours. Whereas the AWD Dynojet at ATP only reads 7-8% higher than ours. Of course, there are differences in fan/cooling set-up so not all variables are held constant. But it's clear they are all calibrated differently.

Shiv

 

So - I am assuming us east coasters w/ 93 octane could see 450whp w/cams, injectors, IC w/good plumbing, etc. with the 3071R

 

450? I really don't think so.

 

I dont think I am getting the cams and cam-gears soon because I have to replace my stocky clutch which is gana fall apart. However I am gana get the delete cat pipe so I can have the best spool. if I move back to the east cost it will be only because of the 93- 94.

 

to tell the truth 3071R is a big turbo and I dont think it will spool like stock no matter what. It will always lag 400 to 700 rpm.

 

Smog, I asked that exact same question before I ordered my kit, they said it was only to compare spool, never to try to get as much as possible out of every setup. You can also see that the 3071 used as comparison actually put out 306whp on the 3037 and 3540 sheets but 375 when compared to stock.

 

Just as info, as I’m going to run Motec stand alone EMS with MAP sensor I changed my order with ATP to get the 3071 with the 4” compressor inlet instead of the 2,75” which is used as the EVO8 bolt on version. I then ordered two 4” alu 45dgrs elbows and a couple of straight 4” silicone hoses to make a kind of “S” shaped intake pipe to put my current 4”/100mm HKS mushroom air filter on. A very similar thing as the AMS kit on these pictures:

http://www.automotosports.com/evo_gt_kit.asp

Any thoughts on how/if this would affect performance compared to the 2,75” version?

 

nice setup you have

 

Thanks Az3ar, I'm VERY exited about this kit, ordered it on the 10’th this month but still no sign of it. They said it would take a few extra days to get the 4” version as well as they are waiting for the lower intercooler pipe that they are now supplying with the kit. I guess you will have one as well? The problem I have now is that my Motec tuner is on vacation for 3 weeks starting the week after the next and I will not have the kit in time to install it before that so I’ll just have to wait like at least 5 weeks from now

I’ll be running this together with a full 3” exhaust with cat delete pipe, 780cc injectors, Tomei Procams 260 11,5mm lift and adjustable gears (got all that today from Japan ) so I think I will push the 3071 all the way. I already have Ross pistons 8,5:1 and Eagle rods and all ARP bolts in the engine so it should be able to handle pretty high boost. I guess it will be the type of fuel that puts the limit, my Motec M48 ECU are not capable of multiple maps so I will only tune it for pump gas. We get 98 octane pump gas here but I’m not sure it compares to 98 octane in the US? I might do a race fuel map as well but then I would need to manually load it into the Motec with a PC each and every time I would like to use it.

BTW how do you guys do when you change from pump gas to race gas and back again? Do you completely drain the fuel tank in between or are you running separate fuel tanks some way?