HKS 7460R compared to EF3 on Evo 8
May 14, 2013, 06:56 PM
#1
HKS 7460R compared to EF3 on Evo 8
DONT MIND SQUIGGILIE LINES AT END IT WAS LOSING SIGNAL.
The blue line is EF3 (tuned at 25 psi fell off to 23)
Red line is HKS 7460R (tuned for 23psi fell to 18)
Both tuned on 93oct
Mods (were same for both accept for inj/3port)
Hks 272
Map short runner
Megan o2
3inch turbo back
Injen piping/intake
Xs IC (3.5)
Walbro 255
Arp head studs
680 pte (7460r)
1000pte(ef3)
Ef3 had a 25psi wastegate NO 3 port
7460R was preloaded at 12psi and had a 3 port
***NOTE**** on the Dyno the 7460r boost fell from 23-18. On road it holds 23psi(tuner said it happens)
So in theory we will say 10hpish per 1psi. So will say the turbomade 360-370hp and 350/360tq.
IMO the HKS is a better turbo and is way more fun. Your full spool at 4k as to the ef3 its 5.2k. Ive enjoy the HKS way more and sounds awesome and just spools its *** off.
I was gonna go fp green bb. But after comparing graphs on my tuners computer the Hks is quicker in low/mid range. The fp green will win in top end.
Last edited by EVONOT; May 14, 2013 at 07:36 PM.
May 15, 2013, 08:16 AM
#3
Hmmm I'm not sure why the GTII gave you the blues on the dyno as I know personally that it can do better than what the dyno chart states, but your road tune data sounds closer to accurate. I can't vouch for the EF3 as I have NO personal experiance with it but I know that it is also a good stock frame turbo... I mean MAP made it for crying out loud 
May 15, 2013, 09:54 AM
#5
Evolving Member
Join Date: Oct 2006
Location: Trinidad
Posts: 204
Likes: 0
Received 0 Likes
on
0 Posts
Well the EF3 does murder the 7460r as per the dyno sheet from 4500 up. Thoses HKS 272s wil be holding back uptop. Get some GSC s3's or s2's and rev it out to 8k. then u will forget all abut the HKS turbo. lol
Trending Topics
May 15, 2013, 12:54 PM
#8
I've been running the HKS since it came out, previously on a stock 2.0 with S1 cams, and now on a 2.3 with S2 cams. I love the turbo. The spool is obnoxiously quick, which is what I wanted for autox and track purposes. No personal experience on the EF3, but my friend who runs it likes it also. For those chasing peak hp/tq numbers, the HKS is not designed for that. I makes decent power, but it shines in spool characteristis. My car is making 408hp/391tq using 93 pump gas @25psi on the KrazyHouse Customs mustang dyno. The HKS is choking the motor at this point, but whatever.
I think its the perfect street turbo for those looking to upgrde, but not willing to go crazy.
May 15, 2013, 01:05 PM
#9
Wouldn't be apples to apples comparison now would it?
I've been running the HKS since it came out, previously on a stock 2.0 with S1 cams, and now on a 2.3 with S2 cams. I love the turbo. The spool is obnoxiously quick, which is what I wanted for autox and track purposes. No personal experience on the EF3, but my friend who runs it likes it also. For those chasing peak hp/tq numbers, the HKS is not designed for that. I makes decent power, but it shines in spool characteristis. My car is making 408hp/391tq using 93 pump gas @25psi on the KrazyHouse Customs mustang dyno. The HKS is choking the motor at this point, but whatever. I think its the perfect street turbo for those looking to upgrde, but not willing to go crazy.
I've been running the HKS since it came out, previously on a stock 2.0 with S1 cams, and now on a 2.3 with S2 cams. I love the turbo. The spool is obnoxiously quick, which is what I wanted for autox and track purposes. No personal experience on the EF3, but my friend who runs it likes it also. For those chasing peak hp/tq numbers, the HKS is not designed for that. I makes decent power, but it shines in spool characteristis. My car is making 408hp/391tq using 93 pump gas @25psi on the KrazyHouse Customs mustang dyno. The HKS is choking the motor at this point, but whatever.
I think its the perfect street turbo for those looking to upgrde, but not willing to go crazy.
Unfortuantely I want 500 on pump so imma try and part ways with mine. But hell I may just keep it as a back up
May 16, 2013, 07:29 AM
#15
Evolving Member
Join Date: Sep 2009
Location: Los Angeles
Posts: 199
Likes: 0
Received 0 Likes
on
0 Posts
Its lazy because there is no 3 port to help it spool a little bit quicker. But still, I think the main point is that the HKS spools nicely compared to a big turbo like the EF3.
A good street turbo will be a small upgrade from stock. You want more power then up top with a big turbo then you will sacrifice low end power and torque.
Also to the OP, looks like the tune could have better on either turbo. The power should not have been dying off at 5000 rpm.
A good street turbo will be a small upgrade from stock. You want more power then up top with a big turbo then you will sacrifice low end power and torque.
Also to the OP, looks like the tune could have better on either turbo. The power should not have been dying off at 5000 rpm.