SLC Dyno clip
- Thread starter Craig7L
- Start date
Howard Jones
Supporter
I would love to see pictures of your exaust system. What mufflers did you use, where did you locate them?
Craig Gillingham
Banned because I can't follow the forum rules.
Off the shelf Magnaflow 2.5" inlet mufflers running CATS
Map finished for now. still more power to be had - notice the sharpe fall off
Factory fuel delivery plumbing rehashed
correct MAP was uploaded as came with incomplete map
New air intake design ram air to side- cleaner colder air - MAF was in squashed tube - false readings
Rev limit reduced by 500rpm - both fans now cut in at lower temp -
Fuel pump now primed by ECU - stop and go on engine runiing (safety) was on constant and figging noisey as hell...
Running CATS but noise level not down to 99db so will require final remap once better silencers added
Lambda sensor was down already needed replacement.
balance bar required for idle stability
for stop start idle road use the radiator is well underspecd! will need bigger and maybe side inline
best run but disregard
YouTube - CLIP0002
this is as mapped.
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Dave Lindemann
Lifetime Supporter
Hi Craig - BEAUTIFUL car! I'm really happy to see someone with a SLC that is put together and who is willing to share their experiences of getting it road/track worthy with the rest of us. I hope to start working on mine this winter and I appreciate being able to learn from the experience of those who have "been there". Like others here I'd love to see some more photos of the interior when you have time.
Could you give us a little more detail on how it was set up as-delivered and what you did to "rehash" it and why?
I have a K&N air intake on order with Fran - is this what your car was delivered with? What did you change it to - custom SS tube? I really like the idea of drawing air from the side - makes a lot of sense. Could you post a picture of your modified air intake?
My car is intended primarily for road use with a LS3 - not as much power as yours is making but your statement about the radiator being undersized has me concerned. I'm a Lotus owner and have experience with lack of cooling - not a good thing. I'm assuming you ran into high engine temps during your dyno runs? Did you have cooling problems even with the fans running?
Sorry for all of the questions. Best of luck putting the final touches on your car and getting it on the road. I'm looking forward to seeing some on-road video soon!
Regards,
Dave L
Could you give us a little more detail on how it was set up as-delivered and what you did to "rehash" it and why?
I have a K&N air intake on order with Fran - is this what your car was delivered with? What did you change it to - custom SS tube? I really like the idea of drawing air from the side - makes a lot of sense. Could you post a picture of your modified air intake?
My car is intended primarily for road use with a LS3 - not as much power as yours is making but your statement about the radiator being undersized has me concerned. I'm a Lotus owner and have experience with lack of cooling - not a good thing. I'm assuming you ran into high engine temps during your dyno runs? Did you have cooling problems even with the fans running?
Sorry for all of the questions. Best of luck putting the final touches on your car and getting it on the road. I'm looking forward to seeing some on-road video soon!
Regards,
Dave L
I took some shots of Craigs setup at an early state when i was in Detroit. i Hope you don't mind craig! It's has got some detail on the exhaust. I'm blown away you made 538 RW HP with cats on a 480 HP rated crate engine. was this just mapping or did you swap cam/2.5" exhaust?
http://im1.shutterfly.com/media/47b9d939b3127ccec7f1af7fe21d00000040O00QaOXDRs5bsge3nwk/cC/f%3D0/ps%3D50/r%3D0/rx%3D720/ry%3D480/
http://im1.shutterfly.com/media/47b9d939b3127ccec7f1af7fe21d00000040O00QaOXDRs5bsge3nwk/cC/f%3D0/ps%3D50/r%3D0/rx%3D720/ry%3D480/
Looks like stock LS376 headers on Craigs...
Another of Craigs fuel plumbing. Aeromotive 12304 100u filterAeromotive A1000 pump good to 650HP normal aspirationAeromotive Filter hold downAeromotive returnless bypasss regultor for injection 13101 ? AN10 fittingsAeromotive 12301 10u filter
Summit racing fuel pump feeds the fuel cell. I could be wrong on the above but the pix seem to match up! Let us know if there are any suggestions / bottlenecks....
Craig Gillingham
Banned because I can't follow the forum rules.
ahhh cam these must have been taken the day i turned up in detroit on 25th March and met you?
there have been changes and work on my car since 14th April from that landed from detroit. It is with a quality UK VdeV race car company who is preparing my car for UK compliance and to take a great design product to a different level in many aspects.
Any builder and manufacturer will have different views on doing things. Some things are not up for debate its either right or wrong.
Issues on my car either fall into one or the other of the above catagories.
I will have a chat with my uk builder to confirm some of the above questions resulting on the info passed down to me.
Testing the cooling system is planned for monday at the factory based on facts resulting from the dyno.....and yes simulation fans were present and yes they did think to bleed the coolant system.... hehehehehe.....
I will also try and get more pics asap.
I will hold fire on the air intake system for now, as now its proven, its to be layed up in carbon fibre.
there have been changes and work on my car since 14th April from that landed from detroit. It is with a quality UK VdeV race car company who is preparing my car for UK compliance and to take a great design product to a different level in many aspects.
Any builder and manufacturer will have different views on doing things. Some things are not up for debate its either right or wrong.
Issues on my car either fall into one or the other of the above catagories.
I will have a chat with my uk builder to confirm some of the above questions resulting on the info passed down to me.
Testing the cooling system is planned for monday at the factory based on facts resulting from the dyno.....and yes simulation fans were present and yes they did think to bleed the coolant system....
hehehehehe.....I will also try and get more pics asap.
I will hold fire on the air intake system for now, as now its proven, its to be layed up in carbon fibre.
Craig,
Is the coolant flow (ie water pump) sufficient? Also, do you think there may be some heat soak from the water lines along the side (counter-current heat exchange)?
What led you away from the rear air intake? Is there negative pressure in that location on the rear deck?
Are you still running the stock exhaust headers? If so, some ceramic coated headers might help with engine cooling (helped with my Viper). 3" Metallic cats might help as well.
Just thought I'd pile on some more questions!! BTW, I DO appreciate your insights. They will be very helpful in my build.
Is the coolant flow (ie water pump) sufficient? Also, do you think there may be some heat soak from the water lines along the side (counter-current heat exchange)?
What led you away from the rear air intake? Is there negative pressure in that location on the rear deck?
Are you still running the stock exhaust headers? If so, some ceramic coated headers might help with engine cooling (helped with my Viper). 3" Metallic cats might help as well.
Just thought I'd pile on some more questions!! BTW, I DO appreciate your insights. They will be very helpful in my build.
Craig Gillingham
Banned because I can't follow the forum rules.
The hot air MAf sensor in the air intake chamber is in a squashed portion of this bashed down peice of 4" tube. (because of body clearance) the MAF airflow sensor is calibrated at 4" diamater round and based at a miniumum of 10" away from the throttle body and in the middle of a miniumum run of 6" ROUND tube. simple as....
In this configuration any plug and play engine would be running rich with long term problems unless part mapped out - not great
pic shown.
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Craig Gillingham
Banned because I can't follow the forum rules.
My air filter is now round and approx 2.5 times bigger. It now sits in a lovely trick clever design bucket in the side air vent straight down- space created by now using a red top varley battery with ample cranking amps half the size of the factory one.......
Craig,
Stock Corvette intake is also a flattened tube without the straight 10" round tube sections required by the base map in the GM supplied hotrod ECU package...
I look forward to seeing your new plenum....
Stock Corvette intake is also a flattened tube without the straight 10" round tube sections required by the base map in the GM supplied hotrod ECU package...
I look forward to seeing your new plenum....
Craig Gillingham
Banned because I can't follow the forum rules.
i assume the corvette ECU isnt the same as the plug and play ECU?
anyway whatever - Its important to get the car IVAd first as until that point its not a road going car and anything could be up for potential change.
I will post more info/pics after this time.
chow!
anyway whatever - Its important to get the car IVAd first as until that point its not a road going car and anything could be up for potential change.
I will post more info/pics after this time.
chow!
Good news. I'm trying to get about 525 HP at the rear wheels with an LS3 ASA cam, stock headers, three inch exhaust, no cats, factory FI, 100 db limit. Looks like it is doable.
As far as the cooling goes, I have NEVER NOT had a cooling issue on a dyno that wasn't much better or even gone entirely once I actually got to the track. The air flow just isn't there, even with HUGE fans. My suggestion would be to try it real world first before getting carried away with upgrades.
As far as the cooling goes, I have NEVER NOT had a cooling issue on a dyno that wasn't much better or even gone entirely once I actually got to the track. The air flow just isn't there, even with HUGE fans. My suggestion would be to try it real world first before getting carried away with upgrades.
