Trick Flow top end kit questions
Thread Starter
6th Gear
Joined: Jun 2014
Posts: 6
Likes: 0
From: Muscatine IA
Trick Flow top end kit questions
Hi guys working on a limited budget here. Im going to purchase the Trick flow top end kit for my 1992 Corvette LT1. Everything is stock. With this kit does it come with everything you need to make the stated 430 hp and 400 ft-lbs ? Ive noticed that on many of Trick flows graph it states with throttle body headers etc.. however on the LT1 graph its not stated. Some questions i have is can a person expect even larger numbers if he adds a 52mm TB or 1 3/4 headers ? Also i understand the car will have to be tuned after installation of the kit. If i didnt add headers at this time will the car have to be re tuned when i did get the cash to upgrade the headers? Thanks
Pro
Joined: May 2008
Posts: 670
Likes: 56
You will need to at least get the LT headers or you will be down about 20-25 hp. I have the trick flow heads but not the full kit. Your stock TB will probably work best with this kit. I don't think you will need a retune when you add headers later. Most tuners will give you 3 free retunes.
Pro
Joined: Mar 2004
Posts: 654
Likes: 18
From: Linthicum MD
I wouldn't bother with the Trickflow stuff. The power they say it will give you is flywheel. Try these two places:
http://elliottsportworks.com/
http://www.advancedinduction.com/LTX/AiLTxMain.php
You can make 400+ to the wheels with either of those guys above. Much more power for the dollar. Also, since you have a '92, your stock heads would be the perfect casting for porting.
http://elliottsportworks.com/
http://www.advancedinduction.com/LTX/AiLTxMain.php
You can make 400+ to the wheels with either of those guys above. Much more power for the dollar. Also, since you have a '92, your stock heads would be the perfect casting for porting.
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
Uhhhh.
Afr is the best there is.
Comp port elim 195's
Afrs are also avail in many cc sizes to tailor your compression ratio how you want it without doing anythin. to the pistons.
Elliot does good work but there was a big shootout comparison with him and afr. Afr won.
Afr is the best there is.
Comp port elim 195's
Afrs are also avail in many cc sizes to tailor your compression ratio how you want it without doing anythin. to the pistons.
Elliot does good work but there was a big shootout comparison with him and afr. Afr won.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Another fan ofbuying new over rebuilt stuff
Seen too many porters claims fall real short once the moneys spent.
Few are good, most arent.
1-5/8 headers is fine for a 350
Seen too many porters claims fall real short once the moneys spent.
Few are good, most arent.
1-5/8 headers is fine for a 350
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Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
If you are gungho about buying a cam / head kit, then id talk to advanced induction.
That said, theres more power to be made with an afr comp elim195 heads, and the right cam...and 1 3/4 headers
What the right cam is, i cant tell you.
That said, theres more power to be made with an afr comp elim195 heads, and the right cam...and 1 3/4 headers
What the right cam is, i cant tell you.
Le Mans Master
Joined: Dec 2000
Posts: 5,761
Likes: 47
From: munising MI USA
the fact that elliot uses your heads as cores and because of it charges half what a set of afrs cost would offset a couple hp to me. Keep in mind too at what rpm level the componets you buy are designed to make that hp at. When you get over 400 hp in a stock block your usually going to have to spin the motor faster then what the bottom end is going to take for the long haul. So unless you plan on building your short block too a lumpy cam and big valves arent the answer. Compare hp per $ spent. Elliot will port and rebuild your heads, provide a cam and port your intake for the price of a set of new heads. Only downside i see to it is your car is going to be down while you wait to get your heads back. One more bit of advice. Pay alot more attention to the torque curve the parts give you then peak hp readings. Torque moves your car.
Last edited by Lloyd Smale; Jun 10, 2014 at 06:32 AM.
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
the fact that elliot uses your heads as cores and because of it charges half what a set of afrs cost would offset a couple hp to me. Keep in mind too at what rpm level the componets you buy are designed to make that hp at. When you get over 400 hp in a stock block your usually going to have to spin the motor faster then what the bottom end is going to take for the long haul. So unless you plan on building your short block too a lumpy cam and big valves arent the answer. Compare hp per $ spent. Elliot will port and rebuild your heads, provide a cam and port your intake for the price of a set of new heads. Only downside i see to it is your car is going to be down while you wait to get your heads back. One more bit of advice. Pay alot more attention to the torque curve the parts give you then peak hp readings. Torque moves your car.
so much more for the dollar with afr
Le Mans Master
Joined: Dec 2000
Posts: 5,761
Likes: 47
From: munising MI USA
head work from him varys from 900 bucks to 1200 on you heads. Like i said the big differnce between the is the large valves and a bit better flow but thats going count mostly at high rpm and will probably sacrafice torque down low and is only really a factor with an lt1 if you have a built bottom end that will take 6k plus. So unless your drag racing its a waste. People get two wrapped up in peak hp readings on a dyno when it comes to a streat engine. A flat torque curve is much more important. I dont think your going to touch complete afrs for that money and the original poster said hes on a budget. heres his prices http://elliottsportworks.com/?page_id=51
Last edited by Lloyd Smale; Jun 10, 2014 at 11:10 AM.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
To the OP. Contact AFR, they will also recommend a camshaft grind for your engine combination and their heads.
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
You don't have to have it re-tuned for LT's. Generally w/o changes you'll see a 0.5 enriching of the a/f at WOT. If you do, they will change a parameter for where the 02 sensor is in relation to the exhaust valve (distance between the two) and tweak the a/f
Race Director
Joined: Sep 2001
Posts: 14,680
Likes: 752
From: NEwhere Ohio
I would def have it retuned.
Ve tables need modd and youll want to lower wot spark advance a bit if you go with the more efficient afr head.
Also might need to mod wot % fuel adder coolant and rpm tables.