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Old 10-19-2013, 12:22 PM   #1
mod maniac
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Default hybrid # 398.2whp 389.5tq 20g 91+meth 11.758/111.55

I decided to try a hybrid build because there seemed to be a lot of problems with the build and a lot of disagreement on how to do it. So I did my research and decided to try it. So hears my build and I hope others will share there numbers.

ej257 bored to 99.75
sti nitrated crank
manley rods
acl race bearings
sti 11mm oil pump
balanced rotating ass.
arp head studs
je hybrid pistons
stock ej205 heads
bc 272's
bc springs and retainers
dw 1000cc injectors
tgv deleats
kinugawa td06-20g billet wheel
agency power elh
tial ewg
devils own meth kit
amr tmic
73mm maf
maddad tbe
2.5 bar map
grimmspeed ebcs


398.2 whp 389.5 tq
Thanks to Ed at eq
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Last edited by mod maniac; 02-16-2014 at 09:15 PM.
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Old 10-19-2013, 01:58 PM   #2
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Now Ed needs to tell us how different this is to tune than a CNCed head, if it is at all. Actually we need someone less invested than Ed, since he obviously holds stake in the CNC option, but that's all we got for now.

Looks like plenty of power, 370 on 91 is no joke, so it couldn't have been too temperamental.

Where does it spool on the street? seems late for a 2.5 / 20G, even considering no AVCS, but I suppose I did ride in a BC 272 no AVCS car that was 3.7 or 3.8k on the street on a vf39, so maybe that's not as far off as I'm thinking.

Last edited by Concillian; 10-19-2013 at 10:09 PM.
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Old 10-19-2013, 05:14 PM   #3
mod maniac
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That was 371.5 whp 341.5 tq on 91 without meth. It does spool late like at 4k not sure why. I only went with a 20g to keep the power down for the stock 5 spd but it surprised me with the 400 whp. Ed said those were huge # for a 20g on 91. cnc is a great way to go if you buy a short block that is already rebuilt but if you have to bore your block and have to buy pistons you can just buy the hybrid pistons and not do the heads. The problem is getting the quinch and compression right. That cant be done with thick head gaskets.
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Old 10-19-2013, 11:55 PM   #4
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Nice injectors
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Old 10-23-2013, 02:38 PM   #5
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^^^^Thanks????
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Old 10-25-2013, 03:28 PM   #6
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oh look... my old car...

those numbers are pretty awesome tho, i'm not gonna lie
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Old 10-25-2013, 11:50 PM   #7
mod maniac
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I told you I would put it back together for you. Thanks though it's a fun car. Hope you get to enjoy your new one sometime. If you get a chance ask Ed about it, The thing made power easy and I had to make him quit so I would still have a tranny.

Last edited by mod maniac; 10-26-2013 at 12:03 AM.
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Old 10-26-2013, 05:48 AM   #8
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Not fixing that car is probably my biggest regret of my life so far. Now I gotta fix somebody else's crap hole that was in way worse shape than that car. Oh well. The car is gonna be ready on Monday and I'm flying back to sac to pick it up next weekend. I really do hope it never breaks again. Especially after I had the entire engine rebuilt. Maybe one day ill like this car as much as I liked my old one. Enjoy bro!
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Old 10-26-2013, 12:38 PM   #9
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Well I do hope things get better for you. It looks like you were making some good power before it went. 380whp and 391wtq should be fun.
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Old 10-26-2013, 12:41 PM   #10
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Yeah that was right before the header cracked. I got it welded up temporarily and I'm gonna get some equal lengths if I can ever afford it. I'm trying to get it a little closer to 400. That seems to be the magic number.
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Old 10-26-2013, 03:26 PM   #11
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Lol @ rotating a$$
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Old 10-26-2013, 08:32 PM   #12
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cool I have a friend recomending me not to do this but to go build my heads on my 2.0 put better cams and and rotated 30r garret or percision turbo and better clutch he said I could get up to 350 + but my consern is that i want to go do a hybride block with sleeved pistons and the garret rotated turbo and be able to boost howver much i whant also do the 6speed swap . 05 sti dash and get 08 wrx seats and big brakes sorry if i confused some people
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Old 10-26-2013, 08:37 PM   #13
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Yeah that is a cluster **** of ideas but if you want the best combo for the rotated 30r go with the 2.5 block with the built 2.0 heads. You probably won't need sleeves for a 30r either.
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Old 10-26-2013, 10:42 PM   #14
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This engine made 400whp easy. I made Ed stop because of the 5 spd. With a 30r or any other bigger turbo I am sure it will make more power easy. I don't think you need to over build. After I get some of my other projects done I will install a better trans and go for more power. We will see then.
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Old 12-21-2013, 11:59 AM   #15
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Quote:
Originally Posted by slowgenius View Post
Lol @ rotating a$$
Gotta love that a$$.
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Old 12-21-2013, 12:34 PM   #16
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Nice numbers!

What Rods? H-Beams?

Do you know what you CR is?

What type of dyno?

I have a 30r on my hybrid and make full boost by 3800-3900rpms. I do have a high CR setup though, which probably helps out.
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Old 12-22-2013, 01:10 PM   #17
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My build is literally identical to yours aside from the meth. However my builder and tuner is telling me that with the gtx3076r .82 hotside (rotated ass lol) 400whp would be about the limit if I can make that. And they say it would be a ton of boost making it less reliable...now they got me thinking I should go with the gtx35r so I can run less boost but keep power up. What you guys think
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Old 12-22-2013, 05:39 PM   #18
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Quote:
Originally Posted by 25rsti View Post
Nice numbers!

What Rods? H-Beams?

Do you know what you CR is?

What type of dyno?

I have a 30r on my hybrid and make full boost by 3800-3900rpms. I do have a high CR setup though, which probably helps out.


The rods are h beams.
The cr is 8 to 1.
Not sure of the dyne at EQ.
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Old 12-23-2013, 12:27 AM   #19
mod maniac
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Quote:
Originally Posted by booSTin-scoobs View Post
My build is literally identical to yours aside from the meth. However my builder and tuner is telling me that with the gtx3076r .82 hotside (rotated ass lol) 400whp would be about the limit if I can make that. And they say it would be a ton of boost making it less reliable...now they got me thinking I should go with the gtx35r so I can run less boost but keep power up. What you guys think


I would say to do what your builder/tuner says. When I build an engine I want my customers to follow my advice. Keep us in the loop on the #'s please.
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Old 12-23-2013, 08:06 AM   #20
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Quote:
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I would say to do what your builder/tuner says. When I build an engine I want my customers to follow my advice. Keep us in the loop on the #'s please.
it's not so much what they "want" me to do, I just figured the gtx3076r .82 hotside would make more than "maybe" 400awhp. My goals are 400-450. But I don't wanna hit my goal running 30 pounds of boost, this car is also my daily driver, I want it to last
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Old 02-16-2014, 09:13 PM   #21
mod maniac
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Ran this car today at famoso it did a 11.758 at 111.55. Not to bad for my m&s street tires. Also had to soft launch the 5spd.
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Old 02-16-2014, 09:36 PM   #22
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very nice!
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Old 03-10-2014, 04:25 PM   #23
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I thought so too. ^^^^ First time at the drags and first run. Should get faster.
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Old 03-12-2014, 05:18 AM   #24
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Originally Posted by mod maniac View Post
cnc is a great way to go if you buy a short block that is already rebuilt but if you have to bore your block and have to buy pistons you can just buy the hybrid pistons and not do the heads. The problem is getting the quinch and compression right. That cant be done with thick head gaskets.
What are the JE part#'s for your pistons?
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Old 03-12-2014, 06:32 PM   #25
mod maniac
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Mine were je296349. I think.
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