Thread: Thoughts on a full race motor setup

+ Reply To Thread

First

Last

Posts: 81-90 of 333

Search Thread

2008-12-01 21:48:05

#81

Bagato

Addicted to boost now!

Join Date: 2007-12-11
Location: Costa Rica
Posts: 365
Trader Score: 0 (0%)

Originally Posted by mrslappy

the 3 highest HP DET/VET setups I have seen all used factory Intake manifolds. Ported, reworked or indifferent, these motors all made 600+whp and 450+tq at "low" boost levels. 2 of these motors actually made more power than similar K/B series honda setups with similar parts, same turbo and displacement.

Factory SR20VE, or factory N1? How good would the N1 be?

0 Likes

Be the first to like this post.

1992 red 300ZX N/A
1991 black Turbo SE-R

Built SR20VE-T, Tubular manifold, SC6262SP, Tial 38mm WG, Calum RT, 740cc DW injectors, SR16 cams, 3" JEGS cutout, LC-1 wideband, Z32 MAF, P11 tranny, Z32 brake conversion, Stillen body kit.

Reply Reply With Quote

2008-12-01 22:05:34

#82

Dudeman258 Online/offline status of Dudeman258 is unknown

Member

Join Date: 2007-12-11
Location: Mooresville, NC
Posts: 1,595
Trader Score: 6 (100%)

Originally Posted by mrslappy

the biggest power gains that I have seen with these motors is with the header design, the collector megaphone used and also the quality of the header built and they way it is built. the other aspect is tuning. Someone mentioned how the VE's like a lot of timing.... If you are adding a lot of ignition timing to gain power, then you are not running a very efficient setup. the more ignition timing needed means that you are not achieving a high cylinder fill because the more air/fuel in the cylinder at a higher pressure means that the A/F burns at a faster rate. If you have a very efficient setup with the proper cam timing and proper header you will be running much less ignition timing. If you are running 34-38 deg timing at 7-8000rpm like some people have stated then you are not making anywhere near what your motor should be making if you had the proper header.... N1 cams set at the "proper" cam specs and a tuned length header ( less than 30" with megaphone/reverse cone) will want less than 30 deg timing to make the most power....

I tried to bring this up months ago and was ignored. A very valid point, that should be giving everyone a clue as to how this block/head is responding to our most "popular" parts right now.

Subscribed.

Dudeman

0 Likes

Be the first to like this post.

1991 SE-R - SR20VE - I/H/E, N1's - 203whp On Dyno Dynamics
- Do It Old School -

Reply Reply With Quote

2008-12-01 22:26:13

#83

SERacer

New Member

Join Date: 2007-12-16
Location: So. Fla.
Posts: 494
Trader Score: 1 (100%)

Originally Posted by mrslappy

SERacer, are you asking about the ignition timing? or do you want more info in general on that subject? I can tell you that a few of the 2.0L motors with the correct cam timing and header design use about 24-25 deg advance at 8000rpm and these motors can generally be ran on 87 octane with no changes, except a loss in power, but no detonation. These make about 156-158tq at the wheels

I know this was always a band aid for power, like you said we are lazy and the shortcut/quick fix has become the normal thing to do. The younger guys pick up on this and think that's the way it should be when it is not.

I Put the N1 cams in my car without tuning (shame on me ran out of time) and was busy watching the gages instead of driving.
1 loud
2 cam settings did +3 -3 on the sprockets and timing was around 15* static with a race JWt ecu
3 power was there but mostly top end 4 gear between 7k and 8k fuel cut.

N1 will work for me when it's tuned.

0 Likes

Be the first to like this post.

VVl Powered SCCA Road Racer For Sale

Reply Reply With Quote

2008-12-01 22:57:35

#84

BlueRB240

9k rpm crew

Join Date: 2008-05-30
Location:
Posts: 4,038
Trader Score: 2 (100%)

Originally Posted by SERacer

Originally Posted by mrslappy

The N1 cams are not designed for a 2.0L motor and thus the opening/closing ramps and centerlines are designed around a 68.7mm stroke with a 2.10 R/S ratio and with less displacement these cams are not anywhere near optimized for a 2.0L motor. these are designed around the VE head though as the 1.6 and 2.0 heads are the same casting and have the same/similar flow properties.
QUOTE]

Based on the above, take a look at this and tell me what you think.
While you guys were discussing this thread. I was out racing.
YouTube - Tky Trot 08 ed..wmv

That lil swift GT is quick. Are you poping the cams at the same time? or spacing them out?

0 Likes

Be the first to like this post.

95 240sx
91 NX2000 VE
protech-fabrication

Reply Reply With Quote

2008-12-01 23:13:02

#85

SERacer

New Member

Join Date: 2007-12-16
Location: So. Fla.
Posts: 494
Trader Score: 1 (100%)

They both come on at the same time. 5600rpm in qualifying. Then turned them down to 5200 which worked much better. The JWt ecu compensated well. I was concerned it would run lean. Which it did but nothing to be worried about,

More. http://www.sr20-forum.com/road-racing/12452-sebring-lc-tky-trot-vvl-power-new-post.html

0 Likes

Be the first to like this post.

VVl Powered SCCA Road Racer For Sale

Reply Reply With Quote

2008-12-02 02:37:07

#86

Kleensleeper Online/offline status of Kleensleeper is unknown

NX Driver!!

Join Date: 2007-12-12
Location: Canada
Posts: 1,538
Trader Score: 17 (100%)

This thread is getting interesting.

Subscribed.

btw...I believe charles will be selling some of his manifolds soon.

0 Likes

Be the first to like this post.

NX Driver!!

Reply Reply With Quote

2008-12-02 04:20:04

#87

Kleensleeper Online/offline status of Kleensleeper is unknown

NX Driver!!

Join Date: 2007-12-12
Location: Canada
Posts: 1,538
Trader Score: 17 (100%)

Back to the NA topic, I do want to get more into the development of the sr20ve motor more as the honda and toyota stuff is getting kinda boring... same parts, same motors same stuff nothing super cool... I think that some of you should do some 2.3-2.4L motor builds and get some good solid head work done and have it all ready for some big cams when they finally come out. I was pointed to a company called mazworx and i see they have a nice head gasket that looks very strong similar to the Greddy and Apex ones. There are also some simple easy piston and con rod tweaks you can do to make a lot more power instead of just cams and port work.

I will be waiting for that day as im going that route with my build

0 Likes

Be the first to like this post.

NX Driver!!

Reply Reply With Quote

2008-12-02 04:40:35

#88

STRATTON

BLUE RAY PWNES ME

Join Date: 2007-12-15
Location:
Posts: 5,918
Trader Score: 8 (100%)

Originally Posted by SERacer

Originally Posted by mrslappy

The N1 cams are not designed for a 2.0L motor and thus the opening/closing ramps and centerlines are designed around a 68.7mm stroke with a 2.10 R/S ratio and with less displacement these cams are not anywhere near optimized for a 2.0L motor. these are designed around the VE head though as the 1.6 and 2.0 heads are the same casting and have the same/similar flow properties.
QUOTE]

Based on the above, take a look at this and tell me what you think.
While you guys were discussing this thread. I was out racing.
YouTube - Tky Trot 08 ed..wmv

there is no way that the motor in that swift gt or be it a gti is a suzuki powerplant let alone the 1.3 that comes in that car.

what motor was in that swift ?

car sounds great by the way !

stratton.

0 Likes

Be the first to like this post.

if ruled the world and everything in it, skys the limit id push the q 4 5 infinit....

Reply Reply With Quote

2008-12-02 11:40:43

#89

SERacer

New Member

Join Date: 2007-12-16
Location: So. Fla.
Posts: 494
Trader Score: 1 (100%)

Originally Posted by STRATTON

Originally Posted by SERacer

there is no way that the motor in that swift gt or be it a gti is a suzuki powerplant let alone the 1.3 that comes in that car.

what motor was in that swift ?

car sounds great by the way !

stratton.

It's in F production class. whicn means 1.3 motor. I helped build 1.3 motors with 175chp and 13:1 Cosworth pistons and Suzuki ported big valve heads. long ago.
Light weight, slicks, good setup. good driver = good results. That is a great example why we need to put our heads together to have good results of our own.

Thank you, my ears a re still ringing.

0 Likes

Be the first to like this post.

VVl Powered SCCA Road Racer For Sale

Reply Reply With Quote

2008-12-02 12:26:38

#90

Doctor G

Member

Join Date: 2007-12-19
Location: South Africa
Posts: 1,440
Trader Score: 3 (100%)

Originally Posted by SERacer

Originally Posted by STRATTON

It's in F production class. whicn means 1.3 motor. I helped build 1.3 motors with 175chp and 13:1 Cosworth pistons and Suzuki ported big valve heads. long ago.

lol maybe he's running a busa motor....

0 Likes

Be the first to like this post.

'93 Sentra - Full build thread here: http://www.nissanownersclub.co.za/forum/viewtopic.php?t=13186
'11 E92 335i Coupe DCT - daily

Reply Reply With Quote

First

Last

+ Reply To Thread

Thread Information

There are currently ? users browsing this thread. (? members & ? guests)
StubUserName