Guys I need your advice,

Goal is 750-800whp and a fat powerband...

My motor will be tuned with e85. Here are some of the specs, We will boost it around 35-50psi depending weather gas or corn will be used as fuel.
84x89 lsvtec
GE sleeved oringed
GE crank
GE complete girdle kit (main and headstuds etc)
CP pistons 9.5:1
Manley turbo tuff rods
Sk2 pro1s
GE camgears
Ferrea valvetrain
Edelbrock intake manifold 76mm match port
Blox 76mm tb
GE fuel rail
FIC 2150cc blue max Hi-Z injectors
Aeromotive pro series reg
Aeromotive pro series filters
Twin Bosch 044 fuel pumps
-10 feed, -8 return lines
M&W pro10
Crane ps92 coil
Neptune with mac solenoid
Tial 50mm bov
Mine's 60mm wastegate
Topmount manifold
2.5in chargepipes but might upgrade to 3in
PTE 750hp intercooler
4in downpipe
4.0 jdm itr lsd tranny
Exedy twin plate
ETC ETC...

Now im having 2nd thoughts on what comp cover to get? SP or HP
6765 will be a journal bearing and T4 .68AR.

Let me know what you think...

 

prolly overthinking it

 

yeah most of the guys told me to go HP...just wondering lol

 

HP is 3" outlet while SP is 2.5"

I'd be more concerned about your A/R being too small, go with the .96 if this is strictly a drag car

 

x2

 

thanks...

maybe a .81ar should do it...but this is driven 3x a week...

I was given the idea of having .68ar because of the discussion in this thread

https://honda-tech.com/forums/drag-racing-36/t4-s366-t4-billet-6765-800whp-ls-vtec-2742976/

 

You should try the .68 and see how it works out. I just read thru all that thread you posted and sounds like no one had even tried the .68? lol. The .68 sounds promising tho! Give it a try! GL with your build!

 

yes thanks man! Thats what im thinking...

 

Hell with my 1.10ar s372 and e85 its still fun as hell on the street, still makes awesome spool up. I dont drive it on the street, its just when i test it on a quiet road for issues though. I would seriously go with the biggest AR .96 and the H housing, you will thinkthe same one things are said and done. Me personally i would get the real street performance modded 6765 with the 1.15 a/r housing.

 

Why wouldn't you get an H cover?

 

You might as well be a T3 with the .68 housing, I was looking at the 1.15 divided cover for the 6765 and I was told it hurts spool and topend and the .96 was recommended in its place.... I have a divided manny so I am stuck between this and the 67mm S400.

 

In the thread that Zer0_SpeedWorks posted about the t4 s366 and 6765, Turbodano had a lot to say about going smaller on the a/r and how it would NOT hurt to go lower then .81. If it were me, I would go with the .68 a/r (t4) and see what response I could get. Turbodano was saying all you had to do was swap out to a smaller a/r housing and it would spool as fast as the t4 s366 they were testing against. Also just because you go with a smaller a/r wont hurt your power up top...Rado made over 850whp with both the .68 and the .81 from what Turbodano said. That **** is insane! GET THE .68 a/r and dont look back!!! lol

Here are a couple quotes Turbodano posted:

 

x2 You dont need a huge housing.

 

i run basically same setup as you with the Sp housing and .96a/r going to tune tomorrow so ill let you know how it goes

 

Mine is driven on the streets atleast 2-3x a week. Im in talks with RSP and what they recommend that I should get .81ar and HP cover...

Original plan is to get an HP cover, just want to know what you guys think...

I saw the .81ar dyno graph posted in that thread and I think it doesnt suit my goal of having a FAT power band. Also I really want to try the .68ar which turbodano pointed out that it will not hurt the top end etc plus the advantage of having a wide power band.

If it doesnt meet or "short out" with my goals, well by then I should get the .81 to replace the .68 housing.

please post the graph here sir and let us know how did it go...

 

tuner isnt gonna make it into town now So ive gotta wait till another week or two,If you tune let us know as well im shooting for the exact same power.

 

Goodluck man! I hope it works out for you...

 

The thing is that we have already seen what the .81 a/r does and it will not suit his needs. The .96 will definitely be outta his range. But it will be interesting to look at so by all means post that bad boy up after you get it tuned!!!

Who is tuning it? If you dont mind telling.

 

jjspec automotive in macon,ga the owner is very friendly, goes to all the local events and gives alot of track support...not to mention he was running 9.20's on a stock trans in his personal civic in 07. Only thing i dislike is he has a mustang dyno. I was orginally gonna go to go-autoworks in montgomery,al cause i really liked the staff and there products and wanted to eventually switch everything over to them but they stoped returning pm's emails, and calls so its turned me elsewhere.

 

sir one question? Why did you pick the SP cover over the HP one... I know it's kinda senseless but just want to know why...

 

cause i have 2.5 hot piping and 3 inch coldside. A friend on here made 865whp with the same intercooler setup so i didnt see the need in spending the extra money for a 3 inch hot pipe and have the intercooler i got from him redone.

 

should've went with the HP. could've put a reducer coupler on it that way later down the road if you wanted to upgrade to 3'' hotside. I'm sure the SP is still going to perform great though.

 

true, the most power i would ever want though is around 800whp and thats plenty for 9.60's or so with enough seat time. I dont have any sponsers or shops that help me nor would i ever be able to afford dog boxs and etc... not to mention im young (21) so im kinda on a limited budget. LOL!

 

will push thru with billet 6765HP T4 .68ar...Im in talks with RSP now,but there is a 2weeks back order for the back housing... can you guys suggest other stores...

also dont wanna end up with the WRONG turbo just like my first 6765H NON BILLET! LULz

 

WOW! They sent you the wrong unit? To the fricken philippines? Major OOPS?!?! lol