The numbers are in!!!
The numbers are in!!!
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Discussion

LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 6th February 2008
quotequote all
Just got a note from Jeff Schwartz.......dyno work on the LS7 finished yesterday......the winning numbers are....

690.00HP @ 7000
574 ft lb @ 5500
450 ft lb @ 3000

Apparently the engines got a superwide powerband with rev limit set at 7400(still producing 675 hp/480 ft lb..) and to quote Jeff..

"...I set the rev limiter at 7400, cause this thing doesn't sign off"....eek

Got to hand it to Jeff he's maxed out on the spec we agreed......I'm a very, very happy chap......

Delivery hopefully in the next couple of few weeks or so.....body pre-fit beginning April......so with luck might just be able to get the car on the road this year.....

Keep you posted...


ezakimak

1,871 posts

265 months

Wednesday 6th February 2008
quotequote all
"sign off", i think it would be singing at 7400.

will sound great, congrats to you and Jeff on the numbers.

Normally asperated i take it?

SlackBlevens

117 posts

226 months

Wednesday 6th February 2008
quotequote all
Very nice Simon ... you must be more than a little pleased/excited!

Mine should arrive in 2 or 3 weeks time - won't be dynoed until it's in the car tho.

ATB
Darren


LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 6th February 2008
quotequote all
Hi Darren..

Yup pretty excited about this and all aspects of the build actually....trouble is I seem to be spending 99% of the day planning,scheming,dreaming....laugh

I'll post some updates on the build soon plus some 3d shots of plans for the dashboard layout.....still haven't decided on the 'look' yet or whether to go incar PC....how's your build coming on? Are you in position to drop the engine in when you get it?

Keep us posted and how it goes.....

ATB,Simon

LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 6th February 2008
quotequote all
Hi Ryan...

Yup scarey stuff....think I'll probably be screaming whilst the engine singing bounces off the rev limiter!!! Seriously though I'm hoping I'm gonna get a buzz and sense of occassion similar to putting the old GSXR1000 track bike on the throttle stop....never ever tired of that bike...simply awesome engine,.....

For your info - engines a normally aspirated forged piston LS7 running cam & larger airflow mass meter.....

ATB,Simon

SlackBlevens

117 posts

226 months

Wednesday 6th February 2008
quotequote all
LS7TANGO said:
Hi Darren..

Yup pretty excited about this and all aspects of the build actually....trouble is I seem to be spending 99% of the day planning,scheming,dreaming....laugh

I'll post some updates on the build soon plus some 3d shots of plans for the dashboard layout.....still haven't decided on the 'look' yet or whether to go incar PC....how's your build coming on? Are you in position to drop the engine in when you get it?

Keep us posted and how it goes.....

ATB,Simon
Unfortunately I won't be able to drop her in for a while cry probably not until autumn. As far as progress goes she should be off the dolly in a few weeks, I'll post some photos then.

If you're interested I can weigh my carputer - I know you're keen to keep the weight down. yes

Look forward to seeing your ideas, ATB Darren

ROWDYRENAULT

1,294 posts

243 months

Wednesday 6th February 2008
quotequote all
ls7tango: The numbers sound great. I will repeat what I heard at PRI. The LS7 in the Corvette has suffered from a less than optimal dry sump pan. Works great on the street but could perhaps be a bit better on the track. ARE out of Sacramento makes a very nice cast aluminum pan for the LS series. This comment was made by somebody who was in a posistion to know what he was talking about in a conversation with ARE. I am not saying any more because of possible conflicts for the person that said it. he is connected to the G.M. racing program. I only bring this up because I have an LS in my GTR and want them to suceed and Jeff has been a resource to me on my build and I continue to wish the best for him and his projects. Lee
by the way the corvette ALMS Corvettes run the ARE system.

LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 6th February 2008
quotequote all
Thanks Darren.....

Yes I'd be interested in the install weight for your set-up.....gonna try and keep track of the weight/weight placement through the build...........looks like we're both gonna be off the dolly around about the same time!! Look forward to seeing the piccies!!

ATB,Simon




LuckyP

6,243 posts

254 months

Wednesday 6th February 2008
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Wow, great figures Simon. You must be itchin' to get it in there and out there!!!

Pete

d3vine

699 posts

297 months

Wednesday 6th February 2008
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Hey LS7Tango, did you purchase your Dymags yet?

jschwartz

836 posts

287 months

Thursday 7th February 2008
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The ARE stuff is nice, great for 100% track car, not needed IMO. I'm running a stock camaro wet sump on my TT, nobody would reccomend that, but I've had no issues at track days. Simons engine has upgraded rod bolts, which require rework of the Ti rods, Mahle forged pistons, re-balanced, a Schwartz MAF, custom cam and tune in the GM ECU. This was with our mid engine headers and 3" exhaust.
Thanks

s62

515 posts

226 months

Thursday 7th February 2008
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How much for this engine?

ezakimak

1,871 posts

265 months

Thursday 7th February 2008
quotequote all
jschwartz said:
The ARE stuff is nice, great for 100% track car, not needed IMO. I'm running a stock camaro wet sump on my TT, nobody would reccomend that, but I've had no issues at track days. Simons engine has upgraded rod bolts, which require rework of the Ti rods, Mahle forged pistons, re-balanced, a Schwartz MAF, custom cam and tune in the GM ECU. This was with our mid engine headers and 3" exhaust.
Thanks
come on jeff, your so close to that 100bhp per litre mark...
can it get there, whats required
has there been any engine porting done, would an electric water pump alone get it over the mark?

crafty

2,291 posts

266 months

Thursday 7th February 2008
quotequote all
More news on the USA site:

"I've been on the dyno for over a week testing several LS7's with different combos.
Made 730.7 on BP pump fuel today on an LS7 with our re-tuned GM ECU, headwork, modified alum intake, Schwartz MAF and stock drive by wire TB. Upgraded internals, With a street friendly camshaft that idles smooth at 920 rpm.
Also made 690hp with a slightly different combo and a stock plastic intake."

LS7TANGO

Original Poster:

301 posts

229 months

Thursday 7th February 2008
quotequote all
Hi Pete!!

Yeah can't wait to get out there with you......sorry to hear about your engine woes....makes the car performance at Snetterton even more impressive!

Keep in touch.....be nice to get together for my first track outing.....hopefully 2008!

ATB, Simon

LuckyP

6,243 posts

254 months

Thursday 7th February 2008
quotequote all
LS7TANGO said:
Hi Pete!!

Yeah can't wait to get out there with you......sorry to hear about your engine woes....makes the car performance at Snetterton even more impressive!

Keep in touch.....be nice to get together for my first track outing.....hopefully 2008!

ATB, Simon
I think I'll be needing to clean my wing mirrors!! Mind you I don't think I can miss a big ball of orange bearing down on me!!

Laters

Pete

thewave

14,858 posts

238 months

Wednesday 13th February 2008
quotequote all
LS7Tango, looking forward to seeing this beast on the road, shame it's not out already, there's three of us going for a morning blast this Sunday (The PH Sunday Service is too far for us) a Cobra, TVR and my MG, when you're up and running you'll have to join us.

(we're all in Lowestoft)

LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 13th February 2008
quotequote all
Thanks Clint....

Sunday morning blast sounds perfect - look forward to hooking up with you guy's......looking at you profile I assume you're all up for a few trackdays now & then??

ATB, Simon

LS7TANGO

Original Poster:

301 posts

229 months

Wednesday 13th February 2008
quotequote all
D3vine.....sorry been away travelling and missed responding to your post......nope no Dymags for me yet - LuckyP's doing all the hard work on that one.....for the moment I've gone for a set of Forgeline Z3XR alloys..once car is on the road/track then I'll probably order the Dymags for track work only......

ATB, Simon

thewave

14,858 posts

238 months

Wednesday 13th February 2008
quotequote all
LS7TANGO said:
Thanks Clint....

Sunday morning blast sounds perfect - look forward to hooking up with you guy's......looking at you profile I assume you're all up for a few trackdays now & then??

ATB, Simon
Up for a few track days, as and when the wife allows me a day off, i'd be happy to count how many times you go past me laugh

I'll keep you posted on when we're off out next, when do you think you'll be on the road?