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Wow, thanks for taking the time to put such a thorough reply. Currently I知 thinking, tial 3076 with supporting mods to play around for a while, whilst, I decide on build.
Has anyone considered sequential turbos before? 2 each side? Maybe an A28 in the usual place and possibly a gt42r behind back wheel? I have been sketching up some ideas but not sure how they would go
no room to do a sequential setup as well as without a built motor, it couldn't handle the boost pressures a sequential setup produces. If you got really creative you could maybe do 2 small turbo and 1 large turbo in the middle but again, room issues amount other things.
the 3076 or efr7163 are both very streetable and can make 1000whp+
Was just browsing through this section, saw the post and noticed my name was mentioned LOL! So I'll clear a few things up
When I was stock motor I had a pair of Precision 5857 (Non BB) which flowed about the same as a GT30 at the time (keep in mind this was 2008-2009, technology has changed quite a bit now). That setup on stock ECU made 809rwhp and with a standalone it made 876rwhp; both numbers were made on MS109 fuel. The car had 6" BL Intercoolers, Y-Pipe, intakes in the fender well, 2x Bosch 044's connected to a Surge Tank for fueling, 1000cc injectors and a Tilton Triple Disk Clutch.
I had my motor built when my transmission DESTROYED 3rd gear (1 partial tooth left on the gear). My motor build was fairly simple it was done by an engine builder in Austin. It stayed stock 3.6ltr (I had LA Sleeves though), Carillo Rods, CP Pistons, 10mm Headstuds, Headgames Ported Heads and Reground Cams, GT3 Oil Pump, etc... That's when I went with the new at the time (2010) Garrett GTX 3584's which is what I made 1050rwhp on E85 with basically the same modifications except I now had a Weldon Fuel Pump (no more surge tank), 2000cc Injectors and a 997TT intake (No IPD). That setup is what went the 3.92 60-130 and 155mph in the 1/4 mile with.
When that motor blew a headgasket (C85 on ID2000s is a No No, but we didn't know that yet) it got freshened up and I swapped turbos again to Precision CEA Gen2 6466's which on a mix of E85/C23 (50/50 mix) made 1350rwhp which lasted all of a few months before a rod decided to exit the block at 7000+ RPM.
Which that started an ENTIRE new engine build for me that we are about to get back full steam on soon. We did 2x EVOSpec motors and the first swap we ended up doing was my brothers car, then the shop flooded (well most of Houston flooded as well), and finally we are almost back up to being able to work again. This new motor is the most advanced motor John @ EVOSpec has ever built (4.0, Copper headgaskets, Stage 3+ 9000 RPM Heads/cams, etc) and paired with a set of Xona 95-67's, which hopefully should net 1800+rwhp on kill.
If I were building a setup to do in stages right now honestly going by the recent performance of the AIM Performance car the HTA3076 is probably the best choice. They are good to 1150-1200rwhp on a built motor, they will spool fast, etc. The GTX35 will make more power but you also will have to fight lag. If you do build a 3.8ltr it wouldn't be as bad, but if you plan on coupling the turbos with the stock motor or even stay 3.6ltr when you build the motor you'll dislike the lag.
I would def. purchase a Syvecs or ProEFI (I personally prefer Syvecs). Seeing as you are in the UK you do have Ryan from Syvecs that you could probably have do the tuning. The standalone def. is a game changer to any setup. What I had back when I had GTX35's was an HKS Fcon that ran spark/fuel/etc, but still needed my stock ECU for a few things. When I went to 6466's I had the Syvecs. My brother has a ProEFI 112 on his 997TT and it's a good unit as well, just seeing as you are close by to Syvecs I'd def. go that route.
I also agree ~1000rwhp is the sweet spot. I drove my setup at 1050rwhp pretty much any day I could because it was on E85. When you start making more you start to break more parts, cause more things to be upgraded, etc..
Well said. Our 997 with HTA3076 is really the best all around car and it’s hard to beat from a roll or a dig. It runs low 9s in the 1/4 mile, does 3.7s 60-130mph, and 3.8s 100-150mph. It hits hard and early and has an insane power band. There’s not much out there can keep up with it.
What else is done to it? I know 997 has better intake manifolds? What injector size is best for those turbos, currently on 60lb at stock pressure, 3.8 bar I think
What else is done to it? I know 997 has better intake manifolds? What injector size is best for those turbos, currently on 60lb at stock pressure, 3.8 bar I think
It痴 not just a simple rods and go engine. It痴 a fairly extensive build to get the results we池e getting.
3.8L
Our custom head package
HTA3076
Syvecs
AIM fuel system
AIM headers and valved exhaust
All suspension components upgraded
Guards LSD
Billet cover
Dss axles
What needs to be done to the fuel system? I was just looking at Weldon fuel pumps, they say 800-1400hp range. Then a surge tank and what? 90lb injectors? Thanks for the help guys. Adam
What needs to be done to the fuel system? I was just looking at Weldon fuel pumps, they say 800-1400hp range. Then a surge tank and what? 90lb injectors? Thanks for the help guys. Adam
depends on gas you wanna run, but at least ID1700cc injectors
2000cc? Wow, how is your idle? Off to on throttle smooth? Guess my 60lb ers are scrap then
that's running e85. If your running race or pump gas you can run smaller injectors but even then I wouldn't go less than 1700cc if your goals are 1000whp+
On a stand alone, you can idle ok with 2000cc injectors. Idle is.great on e85, just not quite as good if running straight pump gas
Good to know, I値l be pump, no access to e85 here. How about fuel rails? Surge tank? Or just a big in tank pump? Thanks
I run 2x stock drivers side rails with 6an fitting welded on. Aftermarket rails are available through srm as well as part of their dual pump stage 3 systems.
no need for a surge tank.
I run 8an feed line with a y and 2x 6an line off to each rail to feed them. Then back to a regulator and a 6an return to the tank. I run my pump staged though as well.
Take a look at this, made this a while ago to compare my setup to a friend's. I ran A28's on a built 3.6, stock head/cam/ecu .. He runs a 3.8/ported/cammed/syvecs 3076 then swapped to pte 6466 .... A28 on 98Ron+meth, 3076/6466 are on ignite E85 ... Just for an idea about area under the curve ....
You see for 1KWHP or less 35's or atleast that size turbo is not the ideal choice. If you are, however, like my friend hellbent on getting to 1200whp 30's are too small.
So what will be the primary use of the car? And most important how much are you willing to spend on the build? My build cost me 12K$ (only engine build), my friend mr1200 is in for more than 3X that.
12-03-2017, 02:04 PM
