Speed density question/heads

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Jan 19, 2007 | 07:19 PM

mikep2002

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From: Oxford, Chester County,Pa

Speed density question/heads

Hey there looking for some answers to a couple questions.

1---My car currently has a speed density tune. I am changing my heads to ported heads with less compression(boost motor)LQ9. Will my car run with these heads to make it to the tuner?

2---With the heads I am putting on there and the fact they flow better than the stock 241 heads which I was using. Will I be able to get rid of the speed density tune and go with a normal performance dyno tune?

Thanks people I wasn`t sure what to start searching with.
mikep

Jan 19, 2007 | 07:49 PM

foff667

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From: Clermont, FL

Quote:

1---My car currently has a speed density tune. I am changing my heads to ported heads with less compression(boost motor)LQ9. Will my car run with these heads to make it to the tuner?

yes

Quote:

2---With the heads I am putting on there and the fact they flow better than the stock 241 heads which I was using. Will I be able to get rid of the speed density tune and go with a normal performance dyno tune?

if your boosted theres a good chance youll be better off SD

Jan 19, 2007 | 08:53 PM

mikep2002

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From: Oxford, Chester County,Pa

Thank You, And why would you prefer S/D tune? I had my car stall twice in like 4 months its kind of embarrising.

Jan 19, 2007 | 08:59 PM

foff667

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From: Clermont, FL

if your boosted, depending on the boost level your running with a maf you very well might be maxing it out.

If it stalls though thats rarely related to the type of tune ie SD/MAF